Phase-shift measurement analyses of time-lapse multicomponent seismic data over a multi-well hydraulic stimulation, Wattenberg field, Denver Basin
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Instantaneous phase calculations estimate phase differences in multicomponent seismic data between traces acquired pre- and post-stimulation of eleven horizontal wells in Wattenberg Field, Denver Basin. Estimated phase shifts illustrate the ability of multicomponent seismic to image the reservoir response associated with the interaction of stimulated, hydraulic fractures with natural fractures. Time-lapse shear-mode seismic showed the largest response with maximum phase differences of about 30 degrees. Converted-mode seismic provided shifts of about 20 degrees, and compressional-mode seismic ...