Technical Difficulties of Thick Overburden Layer Drilling in Xiaoqinling Gold Mine and the Countermeasures
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- LUO Yong-gui
LUO Yong-gui
No.3 Geological Exploration Institute, Henan Provincial Bureau of Geo-exploration and Mineral Development
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Search for this author on this site - WANG Hong-yang
WANG Hong-yang
No.3 Geological Exploration Institute, Henan Provincial Bureau of Geo-exploration and Mineral Development
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Search for this author on this site - LIU Jian-hua
LIU Jian-hua
No.4 Geological Exploration Institute, Henan Provincial Bureau of Geo-exploration and Mineral Development
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No.3 Geological Exploration Institute, Henan Provincial Bureau of Geo-exploration and Mineral Development,No.3 Geological Exploration Institute, Henan Provincial Bureau of Geo-exploration and Mineral Development,No.4 Geological Exploration Institute, Henan Provincial Bureau of Geo-exploration and Mineral Development
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Abstract:
The analysis is made on the technical difficulties of thick overburden layer drilling in Xiaoqinling gold mine; the technical countermeasures are researched to solve the problems in thick overburden layer wire-line core drilling in the aspects of drilling methods, borehole structure, wall protection with mud and process measures, which have brought good effects in the practice.
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History
- Received:July 24,2013
- Revised:July 24,2013
- Adopted:October 24,2013
- Online: January 20,2014
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