ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,802, issued on May 27, was assigned to PGS Geophysical AS (Oslo, Norway).
"Separation of blended seismic survey data" was invented by Maiza Bekara (Weybridge, Great Britain) and Lian Duan (Weybridge, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "Techniques are disclosed relating to deblending of sources in multi-source geophysical survey data, including marine or land-based data. Multiple sets of deblended receiver traces are generated by iteratively applying a coherency filter to estimated sets of deblended receiver traces and updating a residual until a termination condition is reached. In some embodiments, applying the coherency fi...