| 迁安红山铁矿破碎复杂地层钻探施工技 |
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| 引用本文： | 郑思光.迁安红山铁矿破碎复杂地层钻探施工技[J].探矿工程,2012,39(8):15-18,22. |
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| 作者姓名： | 郑思光 |
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| 作者单位： | 河北省地矿局第二地质大队,河北唐山063000 |
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| 摘 要： | 简述了河北省迁安市红山铁矿详查矿区地层坚硬、破碎等复杂特点和地层的岩性情况,总结了该矿区破碎复杂地层绳索取心钻探施工技术经验,着重从钻孔结构、钻具及钻进参数选择和冲洗液选取与配制方面分析了破碎漏失、坍塌掉块及坚硬＂打滑＂地层的处理方法,阐述了保证复杂地层岩心采取率和预防钻孔倾斜的技术措施。通过护壁堵漏、改进冲洗液的配比、调整钻头的胎体硬度,改善了复杂地层的钻进环境,提高了钻探生产效率。
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| 关 键 词： | 破碎复杂地层 绳索取心钻探 冲洗液护壁 钻进效率 红山铁矿 |
| 收稿时间： | 2012/4/2 0:00:00 |
| 修稿时间： | 2012/4/2 0:00:00 |
Drilling Construction Technology for Complex Broken Formation in Hongshan Iron Mine of Qian＇ an Crushing |
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| ZHENG Si-guang.Drilling Construction Technology for Complex Broken Formation in Hongshan Iron Mine of Qian＇ an Crushing[J].Exploration Engineering(Drilling & Tunneling),2012,39(8):15-18,22. |
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| Authors: | ZHENG Si-guang |
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| Institution: | ZHENG Si-guang ( No. 2 Geological Brigade, Hebei Bureau of Geology and Mineral Exploration, Tangshan Hebei 063000, China) |
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| Abstract: | The paper briefly introduced the complex features of hard and broken formation of detailed investigation district in Hongshan iron mine as well as the lithology; summed up the experience of wire-line coring drilling technology in the complex broken formation; emphatically analyzed the treatment of broken ＆ leakage, collapsing ＆ falling and hard ＆ slip- ping formation in aspects of borehole structure, drilling tools ＆ drilling parameter selection and the flush fluid selection ＆ preparation. The paper also discussed technical measures to ensure coring rate and prevent borehole inclination in complex formation, by wall protection and leaking stoppage, flush fluid ratio improvement, bit matrix hardness adjustment and the improvement of complex formation drilling environment, the drilling efficiency was increased. |
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| Keywords: | complex broken formation wire-line coring drilling wall protection by flush fluid drilling efficiency Hongs- han iron mine |
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