Study On Extraction Techniques Using Hydraulic Fracturing And Hydraulic Slotting In High Stress And Tectonic Stress Zones

Abstract

In order to get a better effesct for extraction, in the high stress and tectonic stress. Aiming at the problem of outburst coal seam with high stress and tectonic stress area, gas extraction borehole is prone to collapse and gas extraction effect is poor. By comparing the anti-reflection measures of hydraulic fracturing and hydraulic slotting combined with the hole sealing technology of hard casing and the gas extraction of ordinary boreholes, it is concluded that the concentration of gas extraction in borehole after hydraulic fracturing and hydraulic slotting increases by 16~36% and 4~16% respectively, and the gas extraction amount increases by 6 times and 3 times respectively. This conclusion can provide reference for gas extraction under similar geological conditions.