US Patent Issued to Chevron U.S.A. on June 9 for "System and method for seismic imaging" (Texas Inventor)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,650,531, issued on June 9, was assigned to Chevron U.S.A. Inc. (San Ramon, Calif.).

"System and method for seismic imaging" was invented by Guojian Shan (Sugar Land, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method is described for seismic imaging including receiving a full waveform inversion (FWI) image of a subsurface volume of interest including complex geology; transforming the FWI image to the Fourier domain to generate a Fourier domain image; performing a multi-dimensional low-cut filter of the Fourier domain image to generate a low-cut filter image; phase rotating by 90 degrees the low-cut filter image to generate a phase-rotated imag...