| 柴家沟钼矿复杂地层岩心钻探技术 |
| 投稿时间：2016-09-14 修订日期：2017-06-18 点此下载全文 |
| 引用本文：王洪涛.柴家沟钼矿复杂地层岩心钻探技术[J].钻探工程,2017,44(8):37-40.WANG Hong-tao. Core Drilling Technology for Complex Strata in Chaijiagou Molybdenum Deposit[J]. Drilling Engineering, 2017,44(8):37-40. |
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| 中文摘要:柴家沟钼矿地层破碎、裂隙发育、蚀变多样、涌水、完整岩石坚硬，而且地质设计要求大部分为斜孔，钻探施工中遇钻孔漏水、坍塌掉块、进尺缓慢、跑斜严重等技术难题。从钻孔结构、冲洗液配置、护壁堵漏、硬岩钻进、涌水地层加重泥浆的使用、立轴式钻机斜孔施工注意事项等方面总结了钻探施工经验。 |
| 中文关键词:岩心钻探 斜孔 护壁堵漏 复杂地层 加重泥浆 柴家沟钼矿 |
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| Core Drilling Technology for Complex Strata in Chaijiagou Molybdenum Deposit |
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| Abstract:Strata breaking, fracture development, alteration diversity, water gushing and hard intact rock co-exist in Chaijiagou molybdenum deposit, and most of the geological design requirements are inclined holes. The technical difficulties were countered in drilling construction, such as water leakage, collapse and block falling, slow footage and serious inclined drilling. This paper summarizes the experience of drilling construction in borehole structure, flushing fluid solution configuration, wall protection and plugging, hard rock drilling, the use of weighted mud in water gushing formation and the precautions of inclined hole construction with vertical shaft drilling rig. |
| keywords:core drilling inclined hole wall protection and plugging complex strata weighted mud Chaijiagou molybdenum deposit |
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