| 组合双管绳索取芯心钻具在羊石山金矿勘查中的应用 |
| 投稿时间：2018-03-31 修订日期：2018-06-01 点此下载全文 |
| 引用本文：李洪鹤,毛益林.组合双管绳索取芯心钻具在羊石山金矿勘查中的应用[J].钻探工程,2018,45(6):24-27.LI Hong-he,MAO Yi-lin. Application of Combined Double Pipe Wire-line Core Drilling Tool in Yangshishan Gold Deposite Prospecting[J]. Drilling Engineering, 2018,45(6):24-27. |
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| 中文摘要:针对云南芒市上芒岗羊石山金矿钻进中含矿层破碎，取心要求高，采用110 mm单管钻进时常出现岩心采取率低、孔内事故频发的现象，探索研究的将110 mm单管钻进与95 mm绳索取心钻进相结合的钻探施工工艺，较好地解决了破碎含矿地层的钻进施工难题，保证了含矿地层的岩心采取率。 |
| 中文关键词:组合双管变径接手 组合双管绳索取心钻具 破碎地层 同心度 岩心采取率 |
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| Application of Combined Double Pipe Wire-line Core Drilling Tool in Yangshishan Gold Deposite Prospecting |
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| Abstract:With the breakage of ore-bearing layer in Yangshishan gold deposite prospecting drilling in Yunnan, but coring reqirements are high, low core recovery rate and frequent downhole accidents often happen when drilling using 110mm single pipe. A set of drilling technology which combines 110mm single pipe drilling with 95mm wire-line coring is explored, the drilling difficulties in fractured ore bearing layers are solved and core recovery rate is ensured. |
| keywords:combined double pipe variable diameter joint combined double pipe wire-line coring tool fractured formation concentricity core recovery rate |
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