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Application research of borehole hydraulic fracturing technology for Linhuan Coal Mine

JIANG Qian;ZHANG Ruilin;School of Security Science and Engineering,Henan Polytechnic University;School of Safety Engineering,Henan Institute of Engineering;  
In view of problems of low rate of gas extraction,too many drilling and short period of gas extraction in Linhuan Coal Mine,a method using borehole to implement hydraulic fracturing technology was put forward.The experimental results show that gas standard conditions average scalar was improved19 times in experimental area of Linhuan Coal Mine,gas extraction cycle was extended more than 3times,it indicated that the hydraulic fracturing test forms borehole hydraulic fracturing technology applicable to Linhuan Coal Mine.Linhuan Coal Mine is suited to use hydraulic fracturing to realize pressure relief antireflection and reducing drilling hole amount.
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