Fracture monitoring and reservoir evaluation by micro-seismic method

Based on a micro-seismic hydraulic fracturing monitoring in an oilfield, we systematically analyze the effective micro-seismic events through the spatiotemporal distribution, magnitude, seismic moment, source radius, stress drop and b-value, describe the geometric development of the discrete fracture network and the stress drop in the study area. Then we evaluate the reservoir properties combined with the geological background and logging data. Our micro-seismic analysis technology is helpful to systematically evaluate the fracture network induced by the hydraulic fracturing process, is beneficial to predict the potential fracture zone of the reservoir, and is also a significant guide to a high-efficiency hydraulic fracturing monitoring.