| 秦岭造山带多金属矿普查复杂地层护壁堵漏技术 |
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| 引用本文： | 柳硕林,韩明耀. 秦岭造山带多金属矿普查复杂地层护壁堵漏技术[J]. 探矿工程, 2020, 47(1): 43-47 |
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| 作者姓名： | 柳硕林 韩明耀 |
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| 作者单位： | 河南省地质矿产勘查开发局第一地质勘查院,河南省地质矿产勘查开发局第一地质勘查院 |
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| 基金项目： | 河南省自然资源厅地质科研项目“秦岭造山带复杂地层深部钻探技术研究”（编号：豫国土资发-[2018]-98号） |
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| 摘 要： | 秦岭造山带多金属矿普查项目钻探施工过程中钻遇多种复杂地层，垮塌、缩径、漏失等复杂情况频发，严重影响了施工效率。分别采用了植物胶钙处理钻井液、聚乙烯醇无固相钻井液等进行护壁工作，结合不同漏失情况分别实施了随钻堵漏、凝胶堵漏等技术措施，取得了良好的使用效果。
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| 关 键 词： | 秦岭造山带；复杂地层；钻探；护壁堵漏；植物胶钙处理钻井液；凝胶堵漏 |
| 收稿时间： | 2019-08-31 |
| 修稿时间： | 2019-12-26 |
Borehole protection and leakage control in complex strata of polymetallic deposit survey in Qinling Orogenic Belt |
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| LIU Shuolin and HAN Mingyao. Borehole protection and leakage control in complex strata of polymetallic deposit survey in Qinling Orogenic Belt[J]. Exploration Engineering:Rock & Soil Drilling and Tunneling, 2020, 47(1): 43-47 |
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| Authors: | LIU Shuolin and HAN Mingyao |
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| Affiliation: | The First Geological Exploration Institute of Henan Provincial Bureau of Geo-exploration and Mineral Development,The First Geological Exploration Institute of Henan Provincial Bureau of Geo-exploration and Mineral Development |
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| Abstract: | During reconnaissance drilling for polymetallic deposit survey at Qinling Orogenic Belt, different complex strata were encountered, such as collapse, shrinkage, leakage and so on, which seriously affected drilling efficiency. The calcium treated vegetable gum drilling fluid and solid-free polyvinyl alcohol fluid were used for borehole protection, respectively. According to different leakage situations, technical measures such as plugging while drilling, gel plugging were implemented, and good results were achieved. |
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| Keywords: | Qinling Orogenic Belt complex strata drilling borehole protection and leakage control calcium treated vegetable gum drilling fluid gel plugging |
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