| 川南煤田古叙矿区大村勘查区复杂地层钻探施工技术 |
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| 引用本文： | 李得新,首照兵,杨刚.川南煤田古叙矿区大村勘查区复杂地层钻探施工技术[J].探矿工程,2017,44(9):44-48. |
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| 作者姓名： | 李得新 首照兵 杨刚 |
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| 作者单位： | 四川省煤田地质局一三七队,四川省煤田地质局一三七队,四川省煤田地质局一三七队 |
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| 摘 要： | 川南煤田古叙矿区大村勘查区溶洞、溶隙发育，煤层垮塌，加之瓦斯压力测试、煤层气试井对孔壁的破坏，施工难度大。为了解决上述钻探施工难题，从钻孔结构设计、钻头选型、钻井液使用、套管使用等方面入手，采取相适应的施工工艺及技术措施，取得了较好的效果，保证了该地区钻探施工的顺利实施。
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| 关 键 词： | 复杂地层 钻孔结构 绳索取心 套管使用 古叙矿区 |
| 收稿时间： | 2017/4/4 0:00:00 |
| 修稿时间： | 2017/6/11 0:00:00 |
Construction Technology in Complex Formation of Dacun Exploration Area in Guxu Mining Area of South Sichuan Coal Field |
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| LI De-xin,SHOU Zhao-bing and YANG Gang.Construction Technology in Complex Formation of Dacun Exploration Area in Guxu Mining Area of South Sichuan Coal Field[J].Exploration Engineering(Drilling & Tunneling),2017,44(9):44-48. |
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| Authors: | LI De-xin SHOU Zhao-bing and YANG Gang |
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| Institution: | 137 Geological Team of Sichuan Coalfield Geology Bureau,137 Geological Team of Sichuan Coalfield Geology Bureau,137 Geological Team of Sichuan Coalfield Geology Bureau |
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| Abstract: | The construction is difficult in Dacun exploration area in Guxu mining area of South Sichuan coal field with Karst cave and crack development, coal seam collapse and the wall damage by gas pressure test and CBM well test. In order to deal with the above difficulties, the suitable construction processes and technical measures were adopted in borehole structure design, bit selection and the usage of drilling fluid and casing, the good effects ensured the smooth drilling construction in this area. |
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| Keywords: | complex formation borehole structure wire-line coring usage of casing Guxu mining area |
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