| 塔参1井破碎性白云岩地层防塌技术 |
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| 引用本文： | 朱金智,邹盛礼,王书琪.塔参1井破碎性白云岩地层防塌技术[J].石油钻探技术,1999(2). |
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| 作者姓名： | 朱金智 邹盛礼 王书琪 |
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| 作者单位： | 塔里木石油勘探开发指挥部,新疆库尔勒,841000 |
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| 摘 要： | 塔参１井是迄今为止在塔里木盆地钻成的陆上第一超深井。该井在钻进奥陶系、寒武系白云岩地层时，井眼发生严重坍塌，导致难以继续钻进。本文从地层岩石矿物组分、理化性能和地应力三方面分析了井眼坍塌的原因。经室内一系列封堵试验，现场采用密度适当的钻井液并加入软化点适当、颗粒度较小的封堵材料加强对地层裂缝、微裂缝的封堵，从而成功地解决了塔参１井超深井段破碎性白云岩地层坍塌问题
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| 关 键 词： | 超深井 井眼稳定 钻井液密度 滤饼 奥陶纪 寒武纪 白云岩 封堵 防塌钻井液 |
Anti-collapse Technique for Broken Dolomite Formation in Tacan Well 1 |
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| Zhu Jinzhi,Zou Shengli,Wang Shuqi.Anti-collapse Technique for Broken Dolomite Formation in Tacan Well 1[J].Petroleum Drilling Techniques,1999(2). |
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| Authors: | Zhu Jinzhi Zou Shengli Wang Shuqi |
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| Abstract: | Tacan Well 1 , as the first ultradeep exploratory well in Tarim so far, encountered severe wellbore collapsing and hardly continue drilling in dolomite formation. The paper analyzed the reason from the aspects of rock mineralogical composition, physicchemical properties and insitu stress. Through a series of lab plugging experiments and adding lost circulation materals in field , the collapsing problem has been successfully solved. |
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| Keywords: | ultradeep well hole stabilization drilling fluid density filter cake ordovician period cambrian period dolostone plugging antisloughing drilling fluid |
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