| 甘肃西和大桥金矿区复杂地层钻探施工实践 |
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| 引用本文： | 宋端正.甘肃西和大桥金矿区复杂地层钻探施工实践[J].探矿工程,2012,39(1):44-46. |
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| 作者姓名： | 宋端正 |
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| 作者单位： | 甘肃省地矿局第一地质矿产勘查院,甘肃天水741020 |
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| 摘 要： | 针对甘肃西和大桥金矿区地层破碎、裂隙发育，漏失、坍塌、卡钻、埋钻等钻进难点，采用金刚石单动双管钻进工艺和聚丙烯酰胺小分散低固相冲洗液护孔技术，并采用多种堵漏措施，取得了较好的技术效果。总结了该矿区复杂地层钻探施工的经验。
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| 关 键 词： | 岩心钻探 复杂地层 单动双管 金刚行钻进 聚丙烯酰胺 冲洗液 护壁堵漏 |
| 收稿时间： | 2011/6/14 0:00:00 |
| 修稿时间： | 2011/10/31 0:00:00 |
Construction Practice of Drilling in Complex Formation of Gold Field in Gansu |
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| SONG Duan-zheng.Construction Practice of Drilling in Complex Formation of Gold Field in Gansu[J].Exploration Engineering(Drilling & Tunneling),2012,39(1):44-46. |
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| Authors: | SONG Duan-zheng |
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| Institution: | SONG Duan-zheng ( No. 1 Geo-in- vestigation Institute, Gansu Provincial Bureau of Geology and Mineral, Tianshui Gansu 741020, China) |
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| Abstract: | According to the difficuhies of broken formation, fracture development, lost circulation, callapse, drill rod sticking and burying in Xihedaqiao gole field, diamond swivel type double tube drilling technology and borehole protection with polyaerylamide non-dispersive low solid washing fluid were adopted with several leakage control measures, good technical effects were received. The paper summed up the construction experience in complex formation of this gold field. |
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| Keywords: | core drilling complex formation swivel type double tube diamond drilling polyacryiamide washing fluid |
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