Reservoir mapping with fracture pulse signal

A method of determining a pressure pulse seismic signal value in the subsurface comprising:

• a) acquiring seismic data from a plurality of sensors;
• b) acquiring a pressure reference signal from a pressure sensor associated with a pipe through which fluids are pumped into the earth;
• c) computing a deconvolution output from seismic data associated with the plurality of sensors and the reference signal acquired from the pressure reference signal, the deconvolution output computed using one or more of:
• i) cross-correlation of a plurality of pairs of seismic signals, ii) eigenstructure decomposition, and iii) semblance calculations;
• d) computing travel time differences for the seismic data between the plurality of sensor locations and the subsurface position;
• e) summing the computed deconvolution output with the computed travel time differences to obtain a pressure pulse seismic signal value associated with the subsurface position.

An information handling system for determining a subsurface fluid seismic attribute in the subsurface associated with pumping fracture stimulation fluid comprising:

• a) a processor configured for computing travel time differences between a subsurface position and a plurality of sensors that acquired the seismic data;
• b) a computer readable medium for storing travel time differences for the seismic data between the plurality of sensor locations and the subsurface position;
• c) a processor configured for determining a deconvolution operator from a pressure pump signal associated with a wellhead related to pumping fracture stimulation fluid, 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;
• d) a processor configured for using travel time differences to sum a plurality of deconvolution coefficients associated with the subsurface position to obtain a subsurface fluid seismic attribute at the subsurface position.