Laboratory Experiments on Relation between Microseismicity and Pore Pressure

P092 LABORATORY EXPERIMENTS ON RELATION BETWEEN MICROSEISMICITY AND PORE PRESSURE. Abstract 1 Results of laboratory simulation of microseismicity due to pore pressure change are considered. Spatial-temporal correlation between microseismic emission and pore pressure change was studied. It was found that both in case of water injection and in case of pore pressure release a front of AE propagation corresponds to propagation of pore pressure change. In case of pore pressure increase propagation of AE corresponds to pore pressure increase up to values approximately equal to uniaxial unconfined compression strength (which depends on porosity of the sample). In case of pore