| SA75+5绳索取心钻具在第三系煤田地质勘探中的应用 |
| 投稿时间：2010-03-03 修订日期：2010-06-30 点此下载全文 |
| 引用本文：栗岿玉,黄维振.SA75+5绳索取心钻具在第三系煤田地质勘探中的应用[J].钻探工程,2010,37(7):9-11.LI Kui-yu,HUANG Wei-zhen. Application of SA75+5 Wire-line Coring Tool in Tertiary Coalfield Geological Exploration[J]. Drilling Engineering, 2010,37(7):9-11. |
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| 中文摘要:针对宝山-振兴煤田第三系煤田地质勘探中地层松散，易坍塌、掉块、缩径的问题，采用普通双管和普通绳索取心钻进，各有利弊，而将SA75绳索取心钻具钻头、扩孔器加大到Φ80 mm，并采取相应的钻孔、取心技术措施，取得了质量高、效率高、效益好的成果。 |
| 中文关键词:煤田勘探 绳索取心钻具 缩颈 采取率 取心 成孔 |
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| Application of SA75+5 Wire-line Coring Tool in Tertiary Coalfield Geological Exploration |
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| Abstract:According to the loose stratum, easy collapsing, block-falling and hole diameter shrinkage in the tertiary coalfield exploration for Baoshan-Zhenxin coalfield, application of general double-tube and wire line coring drilling have their own advantages and disadvantages. But by enlarging SA75 wire-line coring drilling tool and hole reamer to 80mm in diameter with corresponding measures of drilling and coring, high quality, high efficiency and preferable benefit were achieved. |
| keywords:coalfield exploration wire-line coring tool hole diameter shrinkage collecting rate of core coring hole completion |
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