Hydraulic fracturing has been widely applied in development of tight sand and shale gas reservoirs, in which high‐pressure fluids are injected into target zones to enhance the reservoir permeability so that gas can be more efficiently recovered. The opening and growing of tensile fractures, as well as shearing slip along fractures during stimulation treatment are thought to be the major mechanisms inducing microseismic events around the treatment well (Shemeta and Anderson, 2010). Therefore, microseismic monitoring is a valuable approach to assess the fracturing process. For example, the locations of microseismic events are used to determine fracture network geometry,...
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