| 山丹马场长山子矿区复杂地层综合钻探技术 |
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| 引用本文： | 孙一国.山丹马场长山子矿区复杂地层综合钻探技术[J].探矿工程,2008,35(9):6-10. |
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| 作者姓名： | 孙一国 |
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| 作者单位： | 甘肃煤田地质局145队 |
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| 摘 要： | 对于煤田钻探中遇到的第四系巨厚卵砾石层松散、坍塌、掉块、漏失，煤系地层构造复杂、裂隙发育、漏失严重，部分层段岩石致密坚硬、复杂难钻、效率低下等复杂地层问题，需要应用综合钻探技术进行施工。通过对不同地层采用不同钻进、护壁堵漏方法及施工技术措施的阐述，提出了几种可以提高钻效、降低成本的方法。
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| 关 键 词： | 复杂地层 套管护壁 堵漏 薄壁钻头 钢粒钻进 综合钻探技术 |
| 收稿时间： | 2008/3/13 0:00:00 |
Comprehensive Drilling Technique in Complicated Formation of Changshanzi Coal Mine Area |
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| SUN Yi-guo.Comprehensive Drilling Technique in Complicated Formation of Changshanzi Coal Mine Area[J].Exploration Engineering(Drilling & Tunneling),2008,35(9):6-10. |
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| Authors: | SUN Yi-guo |
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| Institution: | 145 Team under Gansu Coal Geological Bureau |
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| Abstract: | Comprehensive drilling technology is needed for drilling in complicated formation of quaternary great thick boulder with loose, collapsing, dropping and leakage, various different drilling and water-stop methods for different formations were illustrated in this paper, and some methods for higher ROP and low cost were also presented. |
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| Keywords: | complicated formation casing pipe protection water proof thin-wall bit steel grain drilling comprehensive drilling technology |
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