| 垦利6-4区块含玄武岩地层钻探难点与对策探讨 |
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| 引用本文： | 刘小刚,赵少伟,冯占军,边杰,李鑫.垦利6-4区块含玄武岩地层钻探难点与对策探讨[J].海洋地质译丛,2012(1):88-91. |
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| 作者姓名： | 刘小刚 赵少伟 冯占军 边杰 李鑫 |
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| 作者单位： | [1]中海石油中国有限公司天津分公司,天津塘沽300452 [2]中海油能源发展监督监理技术公司,天津塘沽300452 |
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| 摘 要： | 地层可钻性差,岩石易水化膨胀是玄武岩地层钻探的主要难点。利用垦利6-4区块已钻井的测井资料对玄武岩地层可钻性以及井壁失稳机理进行了分析研究。并据此提出相应的技术措施,包括合理的钻头和钻具组合优化,以及良好的钻井液性能等。现场作业中,按照上述技术措施,实现了玄武岩地层的安全高效施工。
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| 关 键 词： | 玄武岩 可钻性 井壁失稳 钻头设计 |
Drilling Difficulty and Countermeasures of Basalt Formation in KL6-4 Block |
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| Authors: | LIU Xiaogang ZHAO Shaowei FENG Zhanjun BIAN Jie LI Xin |
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| Institution: | 1.Tianjin Branch ofCNOOCLtd., Tanggu Tianjin 300452, China; 2.CNOOC Supervision and Technology Company, Tanggu Tianjin 300452, China ) |
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| Abstract: | Poor drillability and hydration expansion is the main difficulties while drilling basalt formation. Drillability and borehole instability of the basalt formation in KL6-4 Block was analyzed in this paper. Field application showed that bit and BHA optimizing and good mud property are the effective measures while drilling through the basalt formation. |
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| Keywords: | basalt drillability borehole instability bit optimization |
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