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A platform for research: civil engineering, architecture and urbanism
The Design and Construction of Protection on the Directional Drilling in Zhangji Coal Mine
Special conditions in coal mines have led miners to determine that water is the best purging medium in sub-horizontal drilling construction. However, water caused many inconveniences in water-sensitive formations which often appear in gas holes. In response to the identified problem, this paper provides several solutions and illustrates how to execute different methods according to different conditions and cases.
The Design and Construction of Protection on the Directional Drilling in Zhangji Coal Mine
Special conditions in coal mines have led miners to determine that water is the best purging medium in sub-horizontal drilling construction. However, water caused many inconveniences in water-sensitive formations which often appear in gas holes. In response to the identified problem, this paper provides several solutions and illustrates how to execute different methods according to different conditions and cases.
The Design and Construction of Protection on the Directional Drilling in Zhangji Coal Mine
Wei, Hongchao (author) / Yao, Ningping (author) / Jin, Xin (author) / Zhang, Jie (author) / Shi, Huitian (author) / Feng, Wei (author) / Xu, Baolong (author)
International Conference on Pipelines and Trenchless Technology ; 2013 ; Xi'an, China
ICPTT 2013 ; 831-836
2013-10-01
Conference paper
Electronic Resource
English
Seismic effects , Coal , Mining , Pipes , Leakage , Trenchless technology , Drilling , Pipelines , Assets
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