| 喷射式局部反循环绳索取心钻具 |
| 投稿时间：2008-05-06 点此下载全文 |
| 引用本文：刘成才.喷射式局部反循环绳索取心钻具[J].钻探工程,2008,35(9):35-36.LIU Cheng-cai. Wire-line Coring Drilling Tool with Local Rejecting Reverse Circulation[J]. Drilling Engineering, 2008,35(9):35-36. |
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| 中文摘要:针对金矿复杂破碎地层钻探存在的岩心采取困难、孔内漏失严重等问题，改进绳索取心钻具，增加了局部反循环装置，研制出一套适应性广、取心可靠的可调喷射反循环钻具，提高岩心采取率，取得了良好的效果。介绍了该钻具的结构原理、适应范围及应用效果。 |
| 中文关键词:绳索取心钻进 局部反循环 钻具 岩心采取率 |
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| Wire-line Coring Drilling Tool with Local Rejecting Reverse Circulation |
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| Abstract:According to the difficulties of coring in complex broken gold formation and leakage in borehole, wire-line coring tool was modified by putting on local reverse circulation apparatus. The paper introduced the structure principles, application and the applying result. |
| keywords:wire-line coring drilling local reverse circulation drilling tool coring rate |
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