| 控制压力钻井气体溢流处理方法分析与改进 |
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| 引用本文： | 燕修良,朱焕刚,李宗清,陈永明,王树江.控制压力钻井气体溢流处理方法分析与改进[J].石油钻采工艺,2014,36(5):62-64. |
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| 作者姓名： | 燕修良 朱焕刚 李宗清 陈永明 王树江 |
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| 作者单位： | 1.胜利石油工程有限公司钻井工艺研究院，山东东营 257017 |
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| 基金项目： | 国家科技重大专项-薄互层低渗透油藏开发示范工程“薄互层低渗透油藏水平井优快钻井技术”(编号2011ZX05051-002)。 |
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| 摘 要： | 控制压力钻井(MPD)发生气体溢流后,如果处理不当有可能会造成进一步的溢流或者井漏,甚至会发展成为井喷。为解决以上问题,分析了控制压力钻井过程中影响井底压力稳定和井控安全的主要因素,给出了控制压力钻井最大允许气体溢流量的计算公式,并提出了一种控制压力钻井补液、排气新方法。通过数值模拟以及全尺寸井筒实验,证明了补液排气新方法的可行性,完善了控制压力钻井气体溢流的处理方法。
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| 关 键 词： | 控制压力钻井 气体溢流量 补液排气法 数值模拟 全尺寸井筒 |
| 收稿时间： | 2019-05-23 |
Analysis and improvement of gas overlfow treatment in managed pressure drilling |
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| YAN Xiuliang,ZHU Huangang,LI Zongqing,CHEN Yongming,WANG Shujiang.Analysis and improvement of gas overlfow treatment in managed pressure drilling[J].Oil Drilling & Production Technology,2014,36(5):62-64. |
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| Authors: | YAN Xiuliang ZHU Huangang LI Zongqing CHEN Yongming WANG Shujiang |
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| Affiliation: | 1.Drilling Technology Research Institute, Shengli Petroleum Engineering Co., Ltd., Dongying 257017, China |
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| Abstract: | In case of occurrence of gas overflow during managed pressure drilling, improper handling may lead to further overflow or lost circulation, or even blowout, so in order to solve the above problem, the main factors were analyzed which affected bottom hole pressure stability and well control safety during managed pressure drilling, and presented the calculation formula for maximum allowable gas flow volume during managed pressure drilling and also provides a new method for fluid supplementing and gas bleeding during managed pressure drilling. Numerical simulation and full-size wellbore experiment proves the feasibility of this new method, hence improving the handling method for managed pressure drilling gas flow. |
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| Keywords: | managed pressure drilling gas overlfow volume lfuid supplementing and gas exhausting method numerical simula-tion full-size wellbore |
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