Key Technologies of Exhausting and Mining Gas in Mines By Hydraulic Fracturing on the Ground
Because of the poor coefficient of gas permeability, the problem of drainage hole gas concentration is low and the drainage is the poor effects. To the experimental based on Pan-xin block Jincheng mining, systematically analyzed influencing factors of shape ground fracturing, prediction model of crack extension length is established; based on over wall caving to determine the stress direction. Ultimately the scope of the ground fracturing reservoir reconstruction is determined; according to the coal and geological features and ground fracturing reservoir reconstruction range of Pan-xin block, the conduct of layout optimization coalface and drilling. Drilling gas drainage field tests show that the gas concentration is high and extraction effect is obvious within the influencing belt of the hydraulic fracturing on the ground. It is a new way for exhausting gas on the underground.
interaction extraction gas hydraulic fracturing crack
NI Xiaoming YANG Chunli SU Xianbo CHEN Peng
Henan Polytechnic University, School of Energy Science and Engineering, Jiaozuo 454000, Henan, China Zhongyuan University of Technology, Energy & Environment Engineering Department, Zhengzhou 450007, H Institute of Resources & Environment Henan Polytechnic University, Jiaozuo 454000, Henan, China
国际会议
The 2010 International Symposium on Safety Science and Technology(2010 安全科学与技术国际会议)
杭州
英文
1547-1551
2010-10-26（万方平台首次上网日期，不代表论文的发表时间）