| 秦岭造山带多金属矿普查复杂地层护壁堵漏技术 |
| 投稿时间：2019-08-31 修订日期：2019-12-26 点此下载全文 |
| 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].钻探工程,2020,47(1):43-47.LIU Shuolin,HAN Mingyao. Borehole protection and leakage control in complex strata of polymetallic deposit survey in Qinling Orogenic Belt[J]. Drilling Engineering, 2020,47(1):43-47. |
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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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| 中文摘要: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。 |
| 中文关键词: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 |
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| Borehole protection and leakage control in complex strata of polymetallic deposit survey in Qinling Orogenic Belt |
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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. |
| keywords:Qinling Orogenic Belt complex strata drilling borehole protection and leakage control calcium treated vegetable gum drilling fluid gel plugging |
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