| 非地层因素井下漏失原因分析及对策 |
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| 引用本文： | 陈万安,张权,文平,孙开军.非地层因素井下漏失原因分析及对策[J].钻采工艺,2001,24(5):18-21. |
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| 作者姓名： | 陈万安 张权 文平 孙开军 |
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| 作者单位： | 江苏油田钻井处 |
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| 摘 要： | 钻井施工中发生井漏的原因是多方面的，主要有两大因素：一是地层原因，如存在溶洞，裂缝等。二是钻井工艺措施方面存在问题，如开泵过猛憋漏地层等，地层本身造成井漏的原因是客观存在的，这里不予分析，而开泵不畅是钻井工作者经常遇到的复杂情况之一，文中从环空间隙，排量，钻井液性能，地层的承压能力等方面入手，对一口因憋漏地层造成起套管的井井漏的原因进行计算，分析，并与其它2口井对比，提出预防和处理“主观井漏”的办法。
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| 关 键 词： | 井漏 井径 排量 环空间隙 压隙 C56井 对策 石油钻井 |
| 文章编号： | 1006-768(2001)05-0018-04 |
| 修稿时间： | 2001年2月28日 |
Analysis of Causes of Bownhole Leakage in Case of Nonformation Factor and Its
Preventive Measures |
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| CHEN Wan''''an,ZHANG Quan and Sun Kaijun.Analysis of Causes of Bownhole Leakage in Case of Nonformation Factor and Its
Preventive Measures[J].Drilling & Production Technology,2001,24(5):18-21. |
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| Authors: | CHEN Wan'an ZHANG Quan and Sun Kaijun |
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| Abstract: | During drilling,the causes of lost circulation are many-sided.It main has two factors:the first is the formation factor,such as existent cave,fracture etc.,the second is the problem of drilling technology measures.The paper mainly presents the second cause.On the basis of the annulus clearance,discharge capacity,performance of drilling fluid and resistance to pressure of formation etc.,the causes of lost circulation caused by the sharp pump priming are calculated and analysed.And compared with other two wells,preventive and treatment measures in nonformation factor are also proposed. |
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| Keywords: | lost circulation hole diameter discharge capacity annulus clearance pressure loss well C56 |
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