G - Physics – 01 – V
Patent
G - Physics
01
V
G01V 1/36 (2006.01) G01V 1/40 (2006.01)
Patent
CA 2677580
A method for estimating seismic data from sources of noise in the earth surrounding a first seismic receiver and a second seismic receiver. The method includes calculating a Green's function G'(X1, X2) between a first seismic receiver X1 and a second seismic receiver X2 using interferometry. The first seismic receiver X1 is located at a distance away from the second seismic receiver X2. After calculating the Green's function G'(X1, X2), the method may include steps for determining an estimate of one or more non-physical wavefields present in the Green's function G'(X1, X2) and determining a filter to remove the non-physical wavefields from the Green's function G'(X1, X2) based on the estimate of the non-physical wavefields. The filter may then be applied to the Green's function G'(X1, X2) to obtain a Green's function G"(X1, X2) free of non-physical wavefields.
Curtis Andrew
Halliday David Fraser
Schlumberger Canada Limited
Smart & Biggar
LandOfFree
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