Patent 7830745 was granted and assigned to Schlumberger on November, 2010 by the United States Patent and Trademark Office.
A method and system model of the formation and rock matrices in a well site. A microseismic event from a hydraulic fracture in a well bore is recorded at a monitoring well site. The S-coda wave window of the microseismic event is identified. Q-factors for a set of frequencies within the S-coda wave window are then identified.