| 含水漏失层段的气体钻井技术 |
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| 引用本文： | 袁骐骥,徐鹏,李真祥,谢志.含水漏失层段的气体钻井技术[J].天然气工业,2009,29(5):70-71. |
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| 作者姓名： | 袁骐骥 徐鹏 李真祥 谢志 |
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| 作者单位： | 1.“油气藏地质及开发工程”国家重点实验室·西南石油大学；2.中国石化南方勘探分公司；3.中国石化西南油气分公司工程技术研究院 |
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| 基金项目： | 中国石化工程技术导向项目 |
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| 摘 要： | 钻井过程中，出现井漏特别是恶性井漏后，将给钻井工程带来一系列的难题。对于采用常规的钻井液堵漏方法不能解决的恶性井漏，应用气体钻井来钻穿漏失井段，可以避免在易漏失井段出现的漏失。在考虑漏失层特性参数对气体钻井影响的基础上，通过地层岩石吸水膨胀室内实验，分析了漏失层特性参数与气体钻井的关系，提出采用气体钻井来钻过漏失层或漏、水共层井段，解决了既有漏失层又有含水层或漏、水共层的井段的钻井难题。为钻遇复杂恶性漏失层井段选取欠平衡钻井方式提供了理论依据。
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| 关 键 词： | 深井 气体钻井 井漏 压力 欠平衡钻井 地层出水量 |
Gas drilling technology for water-bearing thief zone |
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| YUAN Qi-ji,XU Peng,LI Zhen-xiang,XIE Zhi.Gas drilling technology for water-bearing thief zone[J].Natural Gas Industry,2009,29(5):70-71. |
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| Authors: | YUAN Qi-ji XU Peng LI Zhen-xiang XIE Zhi |
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| Affiliation: | 1.State Key Lab of Reservoir Geology and Development Engineering, Southwest Petroleum University, Chengdu 610500, China; 2.South Exploration Branch, Sinopec, Chengdu 610000, China; 3.Engineering Technology Institute, Sinopec Southwest Petroleum Branch, Deyang 618000, China |
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| Abstract: | Lost circulations, especially serious lost circulations, will often bring out a series of challenges to drilling engineering. For those serious lost circulations, traditional drilling fluid plugging technology does not work, and gas drilling technology is used to drill the thief zones to avoid fluid loss. The effects of thief zone parameters on gas drilling are studied by doing rock swelling experiment, the results of which have provided solution for drilling challenges in water bearing thief zones and have provided a theoretical evidence for adopting UBD to drill serious thief zones. |
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