METHOD AND APPARATUS FOR CALCULATING STIMULATED RESERVOIR VOLUME BY ACCOUNTING FOR UNDETECTED MICROSEISMIC EVENTS

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. 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.

主权项

1. A method for estimating a parameter of a subsurface volume, the method comprising:
receiving a seismic signal having an amplitude from each event in a plurality of subsurface events, the seismic signal being received by a seismic receiver; estimating undetected events and an attribute for each of the undetected events, the undetected events and corresponding attributes being estimated using the seismic signal and corresponding amplitude; and estimating the parameter using the seismic signal and the corresponding attributes of the undetected events; wherein each of the estimating undetected events and the estimating the parameter is performed using one or more processors.