Method and apparatus for estimating a parameter of a subsurface volume

摘要

A method for estimating a volume of a stimulated reservoir includes receiving a seismic signal having a magnitude from each detected microseismic event in a plurality of detected microseismic events in an earth formation to provide detected microseismic event information. The seismic signal is received by an array of seismic receivers (5A,5B). The method further includes estimating a number of undetected microseismic events and a magnitude for each of the undetected microseismic events to provide undetected microseismic event information where the number of undetected microseismic events and corresponding magnitudes are estimated using each of the detected microseismic events and corresponding magnitudes. The method further includes estimating the stimulated reservoir volume using the detected microseismic event information and the undetected microseismic event information.