Patent ID: 7391675
Filing Date: 2008-06-24
Classification: G01V

Abstract:
1. A method, comprising: monitoring microseismicity, the monitoring comprising: determining modeled arrival times; receiving one or more seismic signals with one or more seismic detectors: performing detection transform of the received signals: mapping the detection transform results utilizing the modeled arrival times to generate a continuously updated historical spatial map such that the map represents a measure of the likelihood that there was a source of seismic energy occurring at a time, in space; evaluating values of the map to determine locations and times of microseismic events: wherein the mapping comprises utilizing: Where: T P_SNR=P Detection SNR at time T S_SNR=S Detection SNR at time T P_Match=dot (Modeled_P_Vector (i, j, k), Waveform Vector (T