Fracture propagation induced by hydraulic fracturing using microseismic monitoring technology: Field test in CBM wells in Zhengzhuang region, Southern Qinshui Basin, China

Hydraulic fracturing is an important technical measure for coalbed methane (CBM) development, and the propagation of fractures in target coal seam induced by hydraulic related to stimulation performance CBM recovery. Therefore, effective monitoring fracture development during reservoir critical engineering. In this paper, microseismic technology was used monitor spatial temporal characteristics extension well Zhengzhuang Region, Southern Qinshui Basin, China. Based on scanning data imaging processing, three-dimensional shape vertical wells after can be quantified, ZHSY-1, main direction identified as NE106°, length 426 m, area 1.6 × 10 5 m 2 . It found that does not develop continuously time space with fluid injection, regions are scattered throughout space, formation intermittent. After a large amount injection Well has been significantly increased, gas production improved, which confirmed field data. This study provides application case studying effect using technology, reference engineering development.