Patent ID: 9310506
Filing Date: 2016-04-12
CPC Classification: G01V

Claim Text:
1. A method for determining a subsurface fluid seismic attribute comprising: a) recording a signal at a wellhead related to pumping fracture stimulation fluid to obtain a pressure pulse pump signal; b) determining a deconvolution operator from the obtained pressure pulse pump signal, the deconvolution operator determined using one or more of: i) cross-correlation of a plurality of pairs of seismic signals, ii) eigenstructure decomposition, and iii) semblance calculations; c) acquiring seismic data from a plurality of sensors; d) computing travel time differences for the seismic data between the plurality of sensor locations and the subsurface position; e) deconvolving the seismic data with the deconvolution operator to obtain a plurality of deconvolution coefficients associated with the subsurface position; and f) using the computed travel time differences to sum the plurality of deconvolution coefficients associated with the subsurface position to obtain a subsurface fluid seismic attribute at the subsurface position.