| 复杂地层取心钻进堵心原因分析及其预防措施 |
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| 引用本文： | 李鑫淼,李宽,梁健,尹浩,王志刚,孙建华,张永勤.复杂地层取心钻进堵心原因分析及其预防措施[J].探矿工程,2018,45(12):12-15. |
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| 作者姓名： | 李鑫淼 李宽 梁健 尹浩 王志刚 孙建华 张永勤 |
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| 作者单位： | 中国地质科学院勘探技术研究所,中国地质科学院勘探技术研究所,中国地质科学院勘探技术研究所,中国地质科学院勘探技术研究所,中国地质科学院勘探技术研究所,中国地质科学院勘探技术研究所,中国地质科学院勘探技术研究所 |
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| 基金项目： | 国家重点研发计划资助“多金属矿岩心钻探关键技术装备联合研发及示范”（编号：2016YFE0202200） |
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| 摘 要： | 复杂地层取心钻进时极易发生堵心，严重影响回次进尺长度及取心钻进效率。本文对复杂地层钻进时易出现的堵心问题进行了分析和整理，总结了易堵心地层特征，开展了堵心原因分析，在此基础上，从取心钻头、取心钻具、冲洗液性能及取心钻进工艺方面给出了堵心预防措施。
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| 关 键 词： | 复杂地层 取心钻进 堵心 回次进尺 取心钻头 取心钻具 冲洗液 |
| 收稿时间： | 2018/7/15 0:00:00 |
| 修稿时间： | 2018/7/15 0:00:00 |
Core Jamming Causes and Prevention in Drilling Difficult Formation |
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| LI Xin-miao,LI Kuan,LIANG Jian,YIN Hao,WANG Zhi-gang,SUN Jian-hua and ZHANG Yong-qin.Core Jamming Causes and Prevention in Drilling Difficult Formation[J].Exploration Engineering(Drilling & Tunneling),2018,45(12):12-15. |
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| Authors: | LI Xin-miao LI Kuan LIANG Jian YIN Hao WANG Zhi-gang SUN Jian-hua and ZHANG Yong-qin |
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| Institution: | Institute of Exploration Techniques, CAGS,Institute of Exploration Techniques, CAGS,Institute of Exploration Techniques, CAGS,Institute of Exploration Techniques, CAGS,Institute of Exploration Techniques, CAGS,Institute of Exploration Techniques, CAGS,Institute of Exploration Techniques, CAGS |
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| Abstract: | Core jamming is susceptible in drilling difficult formation, compromising the coring footage per run and core drilling efficiency seriously. In this paper, with examination and sorting out of various core jams in drilling difficult formation, the properties of core jamming formation are summarized with core jamming causes analyzed. And then the measures to prevent core jamming are presented in terms of coring bits, coring tools, properties of drilling mud and core drilling processes. |
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| Keywords: | difficult formation core drilling core jamming footage per run coring bit coring tool drilling mud |
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