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湘西北复杂构造区破碎地层绳索取心钻进技术难点及优化

孔祥旺 张绍和 王文彬 孙平贺 吴冬宇 肖金成 何红生

孔祥旺, 张绍和, 王文彬, 孙平贺, 吴冬宇, 肖金成, 何红生. 湘西北复杂构造区破碎地层绳索取心钻进技术难点及优化[J]. 煤田地质与勘探, 2021, 49(2): 247-252. doi: 10.3969/j.issn.1001-1986.2021.02.031
引用本文: 孔祥旺, 张绍和, 王文彬, 孙平贺, 吴冬宇, 肖金成, 何红生. 湘西北复杂构造区破碎地层绳索取心钻进技术难点及优化[J]. 煤田地质与勘探, 2021, 49(2): 247-252. doi: 10.3969/j.issn.1001-1986.2021.02.031
KONG Xiangwang, ZHANG Shaohe, WANG Wenbin, SUN Pinghe, WU Dongyu, XIAO Jincheng, HE Hongsheng. Difficulties and optimization of wire-line core drilling technology for broken formation in complex structure area of northwest Hunan[J]. COAL GEOLOGY & EXPLORATION, 2021, 49(2): 247-252. doi: 10.3969/j.issn.1001-1986.2021.02.031
Citation: KONG Xiangwang, ZHANG Shaohe, WANG Wenbin, SUN Pinghe, WU Dongyu, XIAO Jincheng, HE Hongsheng. Difficulties and optimization of wire-line core drilling technology for broken formation in complex structure area of northwest Hunan[J]. COAL GEOLOGY & EXPLORATION, 2021, 49(2): 247-252. doi: 10.3969/j.issn.1001-1986.2021.02.031

湘西北复杂构造区破碎地层绳索取心钻进技术难点及优化

doi: 10.3969/j.issn.1001-1986.2021.02.031
基金项目: 

国家自然科学基金面上项目(41872186);湖南省自然资源科技计划项目(2020-23)

详细信息
    第一作者:

    孔祥旺,1998年生,男,江西鹰潭人,硕士研究生,研究方向为地质工程.E-mail:kongxw@csu.edu.cn

    通信作者:

    张绍和,1967年生,男,湖北鄂州人,博士,教授,博士生导师,研究方向为钻掘工程.E-mail:zhangsh@csu.edu.cn

  • 中图分类号: P634.5

Difficulties and optimization of wire-line core drilling technology for broken formation in complex structure area of northwest Hunan

  • 摘要: 以湘西北复杂构造区湘慈地1井为例,针对钻进过程中遇到的岩心采取率低以及卡钻埋钻等钻进难点,通过采用无泵反循环超前侧喷绳索取心钻具以及优化钻井液体系的方法,有效地提高了该钻井工程中的岩心采取率;该新型钻具能够在孔底形成局部反循环,并且结合钻具内部防堵锥网以及超前侧喷钻头的设计能够有效地提高破碎地层中的岩心采取率;通过在钻井实践中应用,该钻具在岩心破碎井段的采取率达到了94.4%,取得了良好的应用效果。

     

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出版历程
  • 收稿日期:  2020-10-27
  • 发布日期:  2021-04-25

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