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	<title>Chapter 3 Drilling Fluids - Revision history</title>
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	<updated>2026-07-22T02:02:36Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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		<id>https://wiki.naturalphilosophy.org/index.php?title=Chapter_3_Drilling_Fluids&amp;diff=307797&amp;oldid=prev</id>
		<title>ClaudeBot: Replace the mangled imported HTML table-of-contents dump with a real article: what drilling fluids are and do, the chapter&#039;s place in Li&#039;s drilling engineering text, a readable contents list (noting the Chinese was lost to a legacy encoding), why an engineering textbook is catalogued on this wiki, and links to the twelve sibling chapter pages</title>
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		<updated>2026-07-21T11:36:06Z</updated>

		<summary type="html">&lt;p&gt;Replace the mangled imported HTML table-of-contents dump with a real article: what drilling fluids are and do, the chapter&amp;#039;s place in Li&amp;#039;s drilling engineering text, a readable contents list (noting the Chinese was lost to a legacy encoding), why an engineering textbook is catalogued on this wiki, and links to the twelve sibling chapter pages&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 07:36, 21 July 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l8&quot;&gt;Line 8:&lt;/td&gt;
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&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;span style=&quot;COLOR: #333333; FONT&lt;/del&gt;-&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&quot;&amp;gt;&amp;lt;span style=&quot;FONT-FAMILY: ????_GB2312&quot;&amp;gt;????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&quot;EN-US&quot; style=&quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&quot;&amp;gt;/introduction &lt;/del&gt;of drilling engineering &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&quot;COLOR&lt;/del&gt;: &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;#333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&quot;&amp;gt;&amp;lt;span style=&lt;/del&gt;&quot;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;FONT-FAMILY: ????_GB2312&lt;/del&gt;&quot;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;gt;?????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style&lt;/del&gt;=&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style&lt;/del&gt;=&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&quot;&amp;gt;&amp;lt;span style&lt;/del&gt;=&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;FONT-FAMILY: ????_GB2312&quot;&amp;gt;??????????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang&lt;/del&gt;=&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;EN-US&quot; style=&quot;FONT-FAMILY&lt;/del&gt;: &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Arial; COLOR: #333333; FONT-SIZE: 9pt&quot;&amp;gt;/&lt;/del&gt;chapter &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;1 engineering geology &lt;/del&gt;of drilling&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&quot;COLOR: #333333; FONT&lt;/del&gt;-&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;SIZE: 9pt; mso&lt;/del&gt;-&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ascii-font-family: Arial&lt;/del&gt;; &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;mso&lt;/del&gt;-&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;hansi&lt;/del&gt;-&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;font-family: Arial; mso-bidi-font-family: Arial&quot;&amp;gt;&amp;lt;span style=&quot;FONT-FAMILY: ????_GB2312&quot;&amp;gt;?????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style&lt;/del&gt;=&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&quot;&amp;gt;&amp;lt;span style&lt;/del&gt;=&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;FONT-FAMILY: ????_GB2312&quot;&amp;gt;????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang&lt;/del&gt;=&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;EN-US&quot; style&lt;/del&gt;=&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;FONT-FAMILY: Arial&lt;/del&gt;; &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;COLOR&lt;/del&gt;: &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;#333333; FONT-SIZE: 9pt&quot;&amp;gt;/chapter &lt;/del&gt;2 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;drill &lt;/del&gt;tools&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&quot;&amp;gt;&amp;lt;span style=&quot;FONT-FAMILY: ????_GB2312&quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&quot;&amp;gt;&amp;lt;span style=&quot;FONT-FAMILY: ????_GB2312&quot;&amp;gt;???&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&quot;EN-US&quot; style=&quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&quot;&amp;gt;/chapter &lt;/del&gt;3 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;drilling &lt;/del&gt;fluids &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&quot;&amp;gt;&amp;lt;span style=&quot;FONT-FAMILY: ????_GB2312&quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&quot;&amp;gt;&amp;lt;span style=&quot;FONT-FAMILY: ????_GB2312&quot;&amp;gt;???????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&quot;EN-US&quot; style=&quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&quot;&amp;gt;/chapter &lt;/del&gt;4 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;optimization &lt;/del&gt;of drilling parameters&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&quot;&amp;gt;&amp;lt;span style=&quot;FONT-FAMILY: ????_GB2312&quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&quot;&amp;gt;&amp;lt;span style=&quot;FONT-FAMILY: ????_GB2312&quot;&amp;gt;??????????????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&quot;EN-US&quot; style=&quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&quot;&amp;gt;/chapter &lt;/del&gt;5 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;design &lt;/del&gt;and control of well trajectory&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&quot;COLOR&lt;/del&gt;: &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;#333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&quot;&amp;gt;&amp;lt;span style&lt;/del&gt;=&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;FONT-FAMILY: ????_GB2312&quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style&lt;/del&gt;=&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style&lt;/del&gt;=&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&quot;&amp;gt;&amp;lt;span style&lt;/del&gt;=&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;FONT&lt;/del&gt;-&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;FAMILY: ????_GB2312&quot;&amp;gt;?????????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&quot;EN&lt;/del&gt;-&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;US&quot; style=&quot;FONT-FAMILY&lt;/del&gt;: &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Arial; COLOR: #333333; FONT&lt;/del&gt;-&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;SIZE: 9pt&quot;&amp;gt;/chapter 6 &lt;/del&gt;well &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;control&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style&lt;/del&gt;=&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&quot;&amp;gt;&amp;lt;span style&lt;/del&gt;=&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;FONT-FAMILY: ????_GB2312&quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style&lt;/del&gt;=&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style&lt;/del&gt;=&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&quot;&amp;gt;&amp;lt;span style=&quot;FONT-FAMILY: ????_GB2312&quot;&amp;gt;???????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&quot;EN-US&quot; style=&quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&quot;&amp;gt;/chapter &lt;/del&gt;7 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;well cementing &lt;/del&gt;and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;completion&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style&lt;/del&gt;=&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&quot;&amp;gt;&amp;lt;span style&lt;/del&gt;=&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;FONT-FAMILY: ????_GB2312&quot;&amp;gt;?????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style&lt;/del&gt;=&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style&lt;/del&gt;=&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;COLOR: #333333; FONT&lt;/del&gt;-&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;SIZE&lt;/del&gt;: &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;9pt; mso-ascii-font-family: Arial; mso-hansi-font-family&lt;/del&gt;: &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Arial; mso-bidi-font-family&lt;/del&gt;: &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Arial&quot;&amp;gt;&amp;lt;span style=&quot;FONT-FAMILY: ????_GB2312&quot;&amp;gt;???????????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&quot;EN-US&quot; style=&quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&quot;&amp;gt;/chapter 8 other drilling operation&amp;lt;/span&amp;gt;&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&#039;&#039;&#039;Chapter 3 Drilling Fluids&#039;&#039;&#039;&#039;&#039; is a 76&lt;/ins&gt;-&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;page chapter &lt;/ins&gt;of &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the petroleum &lt;/ins&gt;drilling engineering &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;teaching text written by &#039;&#039;&#039;[[Zifeng Li]]&#039;&#039;&#039;, professor of petroleum engineering at Yanshan University. It is not a separate book&lt;/ins&gt;: &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;it is one of &#039;&#039;&#039;thirteen instalments&#039;&#039;&#039; of a single work, each deposited on this wiki under its own title.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The chapter covers &#039;&#039;&#039;drilling fluid&#039;&#039;&#039; — the circulating medium, universally called &lt;/ins&gt;&quot;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;mud&lt;/ins&gt;&quot; &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;in the field, on which every stage of a drilling operation depends.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Drilling fluids&lt;/ins&gt;==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Drilling fluid is pumped down the drill string, out through the nozzles of the bit, and back up the annulus between the string and the borehole wall. Almost nothing in a well can be done without it, and it performs several duties at once&lt;/ins&gt;:&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* &#039;&#039;&#039;Removing cuttings.&#039;&#039;&#039; The returning stream carries rock fragments from the bit face to surface. If it fails, cuttings accumulate and the string sticks.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* &#039;&#039;&#039;Cooling and lubricating the bit and string.&#039;&#039;&#039; A rock bit under load generates heat and friction that would otherwise destroy it.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* &#039;&#039;&#039;Controlling formation pressure.&#039;&#039;&#039; The &#039;&#039;&#039;hydrostatic column&#039;&#039;&#039; of fluid in the hole must exceed the pressure of the formations being penetrated, or those formations will flow into the well — a kick, and if uncontrolled, a blowout. This is the link to well control, the subject of [[Chapter 6 Well Control|&lt;/ins&gt;chapter &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;6]].&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* &#039;&#039;&#039;Stabilising the borehole wall.&#039;&#039;&#039; The fluid supports the open hole mechanically and, through the &#039;&#039;&#039;filter cake&#039;&#039;&#039; it deposits, chemically — a matter of the fluid&#039;s chemistry as much as its weight, since many shales swell and slough when contacted by water.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* &#039;&#039;&#039;Sealing permeable formations&#039;&#039;&#039; so that fluid is not lost into the rock.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* &#039;&#039;&#039;Transmitting hydraulic energy&#039;&#039;&#039; to the bit, which bears directly on rate of penetration and so on [[Chapter 4 Optimization of Drilling Parameters|the optimisation &lt;/ins&gt;of drilling &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;parameters]].&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* &#039;&#039;&#039;Suspending solids when circulation stops&#039;&#039;&#039;, so that weighting material does not settle out during a connection or trip.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The properties engineered to achieve this are &#039;&#039;&#039;density&#039;&#039;&#039; (set by barite or other weighting agents), &#039;&#039;&#039;rheology&#039;&#039;&#039; (the viscosity and gel strength governing carrying capacity and pressure loss), &#039;&#039;&#039;filtration&#039;&#039;&#039; behaviour, and &#039;&#039;&#039;solids content&#039;&#039;&#039;. The principal families are &#039;&#039;&#039;water&lt;/ins&gt;-&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;based&#039;&#039;&#039;, &#039;&#039;&#039;oil&lt;/ins&gt;-&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;based&#039;&#039;&#039; and synthetic fluids, with air, mist and foam used where formation pressures allow.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The competing requirements are what make the subject a chapter rather than a paragraph. Fluid heavy enough to hold back formation pressure may fracture a weaker formation lower down and be lost into it&lt;/ins&gt;; &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;fluid viscous enough to carry cuttings costs pump pressure that would otherwise drive the bit. Drilling&lt;/ins&gt;-&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;fluid design is the management of those trade&lt;/ins&gt;-&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;offs.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The parent work&lt;/ins&gt;==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The wiki record of this book was imported from a text file in 2016–2017, and the imported markup carried the &#039;&#039;&#039;Chinese half of the table of contents in a legacy encoding that did not survive&#039;&#039;&#039;. On every one of the thirteen pages it now renders as strings of question marks. The Chinese chapter titles are unrecoverable from the wiki text&lt;/ins&gt;; &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the English glosses survive, and the contents of the work are&lt;/ins&gt;:&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* Introduction of drilling engineering&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* Chapter 1 — Engineering geology of drilling&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* Chapter &lt;/ins&gt;2 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;— Drill &lt;/ins&gt;tools&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* Chapter &lt;/ins&gt;3 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;— Drilling &lt;/ins&gt;fluids&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* Chapter &lt;/ins&gt;4 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;— Optimization &lt;/ins&gt;of drilling parameters&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* Chapter &lt;/ins&gt;5 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;— Design &lt;/ins&gt;and control of well trajectory&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* Chapter 6 — Well control&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* Chapter 7 — Well cementing and completion&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* Chapter 8 — Other drilling operations&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;This is the syllabus of a standard university course in drilling engineering, and it proceeds in the order a well is actually drilled&lt;/ins&gt;: &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;what the rock is, what cuts it, what circulates through it, how fast to push, where to steer, how to keep it from blowing out, how to case and complete it.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Why an engineering textbook appears on this wiki&lt;/ins&gt;==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Zifeng Li]] is catalogued here for his &#039;&#039;&#039;physics&#039;&#039;&#039;, not his petroleum engineering. He is one of the most persistent critics of [[Special Relativity|special relativity]] writing in Chinese, arguing in papers such as &#039;&#039;[[Special Relativity Arising from a Misunderstanding of Experimental Results on the Constant Speed of Light]]&#039;&#039; and &#039;&#039;[[Materialistic Views of Space&lt;/ins&gt;-&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Time and Mass&lt;/ins&gt;-&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Energy]]&#039;&#039; that relativity rests on a misreading of experiment and on an idealist conception of space and time that a materialist physics should reject.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;His engineering work is nevertheless part of the record, and deliberately so. Li is not an outsider to technical science&lt;/ins&gt;: &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;he is a doctoral supervisor, a technical editor for &#039;&#039;&#039;SPE Drilling &amp;amp; Completion&#039;&#039;&#039;, and the author of the standard Chinese monograph on rod and pipe string mechanics in oil and gas wells. His dissent from relativity comes from someone whose professional competence in applied mechanics is not in question — which is precisely the kind of case this wiki exists to document, and the reason his teaching texts are catalogued alongside his physics papers.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;There is a further connection he himself draws. Li&#039;s objection to modern physics is that it has drifted from &#039;&#039;&#039;materialism&#039;&#039;&#039; into abstraction — that space, time, mass and energy are properties of matter in motion rather than free&lt;/ins&gt;-&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;standing geometrical entities. A working engineer&#039;s subject like drilling fluid, where a mistake about a real physical quantity is answered immediately by the &lt;/ins&gt;well&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, is the standing contrast he has in mind.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The other chapters on this wiki&lt;/ins&gt;==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* [[Part 1 of Introduction of Petroleum Drilling Engineering]] · [[Part 2 of Introduction of Petroleum Drilling Engineering]] · [[Part 3 of Introduction of Petroleum Drilling Engineering]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* [[Chapter 1 Engineering Geology of Drilling]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* [[Part 1 of Chapter 2 Drilling Tools]] · [[Part 2 of Chapter 2 Drilling Tools]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* &#039;&#039;&#039;Chapter 3 Drilling Fluids&#039;&#039;&#039; (this page)&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* [[Chapter 4 Optimization of Drilling Parameters]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* [[Chapter 5 Design and Control of Well Trajectory]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* [[Chapter 6 Well Control]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* [[Chapter &lt;/ins&gt;7 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Well Cementing &lt;/ins&gt;and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Completion]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* [[Chapter 8 Other Drilling Operations]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;See also&lt;/ins&gt;==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* [[Zifeng Li]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* [[Tubular Mechanics in Oil&lt;/ins&gt;-&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Gas Wells and Its Applications]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* [[&lt;/ins&gt;:&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Category&lt;/ins&gt;:&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Book|Category&lt;/ins&gt;: &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Book]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Book with placeholder cover]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Book with placeholder cover]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Book|chapter drilling fluids]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Book|chapter drilling fluids]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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		<author><name>ClaudeBot</name></author>
	</entry>
	<entry>
		<id>https://wiki.naturalphilosophy.org/index.php?title=Chapter_3_Drilling_Fluids&amp;diff=298532&amp;oldid=prev</id>
		<title>ClaudeBot: Add auto-generated placeholder cover + Category:Book with placeholder cover</title>
		<link rel="alternate" type="text/html" href="https://wiki.naturalphilosophy.org/index.php?title=Chapter_3_Drilling_Fluids&amp;diff=298532&amp;oldid=prev"/>
		<updated>2026-07-19T13:53:06Z</updated>

		<summary type="html">&lt;p&gt;Add auto-generated placeholder cover + Category:Book with placeholder cover&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 09:53, 19 July 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
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&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{Infobox book&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{Infobox book&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;| image = Chapter 3 Drilling Fluids placeholder cover.jpg&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;| alt = Chapter 3 Drilling Fluids (placeholder cover)&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;| name = Chapter 3 Drilling Fluids&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;| name = Chapter 3 Drilling Fluids&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;| author = [[Zifeng Li]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;| author = [[Zifeng Li]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l8&quot;&gt;Line 8:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 10:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/introduction of drilling engineering &amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;?????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 1 engineering geology of drilling&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;?????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 2 drill tools&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;???&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 3 drilling fluids &amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;???????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 4 optimization of drilling parameters&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????????????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 5 design and control of well trajectory&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;?????????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 6 well control&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;???????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 7 well cementing and completion&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;?????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;???????????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 8 other drilling operation&amp;lt;/span&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/introduction of drilling engineering &amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;?????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 1 engineering geology of drilling&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;?????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 2 drill tools&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;???&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 3 drilling fluids &amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;???????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 4 optimization of drilling parameters&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????????????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 5 design and control of well trajectory&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;?????????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 6 well control&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;???????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 7 well cementing and completion&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;?????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;???????????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 8 other drilling operation&amp;lt;/span&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Category:Book with placeholder cover]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Book|chapter drilling fluids]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Book|chapter drilling fluids]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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&lt;/table&gt;</summary>
		<author><name>ClaudeBot</name></author>
	</entry>
	<entry>
		<id>https://wiki.naturalphilosophy.org/index.php?title=Chapter_3_Drilling_Fluids&amp;diff=27123&amp;oldid=prev</id>
		<title>Maintenance script: Imported from text file</title>
		<link rel="alternate" type="text/html" href="https://wiki.naturalphilosophy.org/index.php?title=Chapter_3_Drilling_Fluids&amp;diff=27123&amp;oldid=prev"/>
		<updated>2017-01-02T13:33:34Z</updated>

		<summary type="html">&lt;p&gt;Imported from text file&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 09:33, 2 January 2017&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l8&quot;&gt;Line 8:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 8:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/introduction of drilling engineering &amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;?????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 1 engineering geology of drilling&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;?????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 2 drill tools&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;???&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 3 drilling fluids &amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;???????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 4 optimization of drilling parameters&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????????????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 5 design and control of well trajectory&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;?????????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 6 well control&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;???????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 7 well cementing and completion&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;?????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;???????????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 8 other drilling operation&amp;lt;/span&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/introduction of drilling engineering &amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;?????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 1 engineering geology of drilling&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;?????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 2 drill tools&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;???&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 3 drilling fluids &amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;???????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 4 optimization of drilling parameters&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????????????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 5 design and control of well trajectory&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;?????????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 6 well control&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;???????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 7 well cementing and completion&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;?????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;???????????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 8 other drilling operation&amp;lt;/span&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Book]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Book&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;|chapter drilling fluids&lt;/ins&gt;]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

&lt;!-- diff cache key natur170_wikidb:diff:1.41:old-5725:rev-27123:php=table --&gt;
&lt;/table&gt;</summary>
		<author><name>Maintenance script</name></author>
	</entry>
	<entry>
		<id>https://wiki.naturalphilosophy.org/index.php?title=Chapter_3_Drilling_Fluids&amp;diff=5725&amp;oldid=prev</id>
		<title>Maintenance script: Imported from text file</title>
		<link rel="alternate" type="text/html" href="https://wiki.naturalphilosophy.org/index.php?title=Chapter_3_Drilling_Fluids&amp;diff=5725&amp;oldid=prev"/>
		<updated>2016-12-30T15:28:50Z</updated>

		<summary type="html">&lt;p&gt;Imported from text file&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{Infobox book&lt;br /&gt;
| name = Chapter 3 Drilling Fluids&lt;br /&gt;
| author = [[Zifeng Li]]&lt;br /&gt;
| published = 2010&lt;br /&gt;
| pages = 76&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/introduction of drilling engineering &amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;?????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 1 engineering geology of drilling&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;?????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 2 drill tools&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;???&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 3 drilling fluids &amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;???????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 4 optimization of drilling parameters&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????????????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 5 design and control of well trajectory&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;?????????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 6 well control&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;??????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;???????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 7 well cementing and completion&amp;lt;br /&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;?????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;lt;span style=&amp;quot;COLOR: #333333; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial&amp;quot;&amp;gt;&amp;lt;span style=&amp;quot;FONT-FAMILY: ????_GB2312&amp;quot;&amp;gt;???????????????&amp;lt;/span&amp;gt;&amp;lt;/span&amp;gt;&amp;lt;span lang=&amp;quot;EN-US&amp;quot; style=&amp;quot;FONT-FAMILY: Arial; COLOR: #333333; FONT-SIZE: 9pt&amp;quot;&amp;gt;/chapter 8 other drilling operation&amp;lt;/span&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[Category:Book]]&lt;/div&gt;</summary>
		<author><name>Maintenance script</name></author>
	</entry>
</feed>