Patent ID: 8427901
Filing Date: 2013-04-23
Classification: G01H,G01V

Abstract:
1. A method for seismic exploration of subsurface rock formations, comprising: actuating an impulsive seismic energy source proximate the rock formations; after a selected time delay, actuating a non-impulsive seismic energy source; detecting a near field waveform of each of the impulsive and non-impulsive seismic energy sources; determining a far field waveform of the combined output of the impulsive and non-impulsive seismic energy sources using the detected near field waveforms; detecting seismic signals in response to the combined output of the impulsive seismic energy source and non-impulsive energy source; and determining an impulse response of the subsurface rock formations by deconvolving the detected seismic signals with the far-field waveform of the combined impulsive and non-impulsive sources.