| 西藏甲玛3000米科学深钻施工技术 |
| 投稿时间：2021-11-23 修订日期：2022-02-24 点此下载全文 |
| 引用本文：田志超,翟育峰,林彬,等.西藏甲玛3000米科学深钻施工技术[J].钻探工程,2022,49(3):100-108.TIAN Zhichao,ZHAI Yufeng,LIN Bin,et al. Drilling technology for 3000m deep scientific drilling in Jiama， Tibet[J]. Drilling Engineering, 2022,49(3):100-108. |
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| 基金项目:国家重点研发计划-深地专项“甲玛-驱龙铜多金属资源基地深部勘查与增储示范”（编号：2018YFC0604101）；山东省地矿局局控科技创新项目“深部绳索取心钻具配套与环保型冲洗液研究及应用”（编号：KY201907）、“3000m超深科学钻探关键技术研发应用”（编号：KY202102） |
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| 中文摘要:西藏甲玛3000米科学深钻项目是青藏高原固体矿产调查领域首个3000 m科学钻探项目，本文介绍了西藏甲玛3000米科学深钻的施工概况及所采用的关键技术。通过采用HXY-8VB型变频手自一体钻机、偏心纠斜钻头、自修正防弯钻具、“钻扩一体”钻头、环保冲洗液体系等工艺措施，解决了高原特深孔施工中的机具选型配套、孔深轨迹控制、复杂地层取心、绿色勘查等一系列施工技术难题。终孔孔深3003.33 m，创造了青藏高原小口径固体矿产勘查孔深纪录，为该地区深孔矿产成矿理论研究及资源勘查提供了详尽的实物资料，同时，也为高原特深孔钻探施工提供了技术借鉴。 |
| 中文关键词:科学钻探 特深孔钻探 绿色勘查 西藏甲玛 |
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| Drilling technology for 3000m deep scientific drilling in Jiama， Tibet |
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| Abstract:The Jiama 3000m Scientific Drilling Project in Tibet is the first 3000m scientific drilling project in the field of solid mineral investigation in the Qinghai-Tibet Plateau， and its purpose is to predict deep mineral resources directly， build a comprehensive exploration model with multiple information， and realize the demonstration of increasing reserves through the study of fine anatomy of orebody structures， hyperspectral analysis and mineral exploration indicators. This paper introduces the general drilling operations and key technologies in 3000m scientific deep drilling in Jiama， Tibet. With use of HXY-8VB type frequency conversion manual-automatic drilling rig， eccentric deviation correction drill bits， automatic vertical drilling tools， “drilling and reaming” drill bits， environmental protection flushing fluid systems and other technological measures， many technical difficulties， including selection of drilling equipment， deep hole trajectory control， complex formation coring， green exploration， have been solved. The project is completed at final hole depth of 3003.33m， creating the record in small-diameter solid ore exploration depth in the Qinghai-Tibet Plateau. It not only provides detailed physical data for the study of deep-hole mineral metallogenic theory and resource exploration in this area， but also provides technical reference for extra-deep hole drilling on the plateau. |
| keywords:scientific drilling ultra-deep drilling green exploration Jiama, Tibet |
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