US 12,352,915 B2
Method and system for estimating converted-wave statics
Yimin Sun, The Hague (NL); Mohammed S. Mubarak, Dhahran (SA); and Victor Dolgov, Dhahran (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Oct. 28, 2022, as Appl. No. 18/050,875.
Prior Publication US 2024/0142648 A1, May 2, 2024
Int. Cl. G01V 1/30 (2006.01); G01V 1/37 (2006.01); G01V 1/42 (2006.01)
CPC G01V 1/301 (2013.01) [G01V 1/305 (2013.01); G01V 1/375 (2013.01); G01V 1/42 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
obtaining a multicomponent seismic dataset for a subterranean region, wherein the multicomponent seismic dataset comprises a pressure wave (PP) seismic dataset and a pressure-to-shear converted wave (PS) seismic dataset;
determining an array of PP-source statics and an array of PP-receiver statics for the PP-seismic dataset;
generating a PP-receiver stack based, at least in part, on the PP-seismic dataset, the array of PP-source statics, and the array of PP-receiver statics, wherein the PP-receiver stack comprises a plurality of source-static and receiver-static corrected PP-stacked traces;
generating a PS-receiver stack based, at least in part, on the PS-seismic dataset and the array of PP-source statics, wherein the PS-receiver stack comprises a plurality of source-static corrected PS-stacked traces;
identifying a PP-target event on the PP-receiver stack;
forming a space-time window of the PS-receiver stack guided by the PP-target event, wherein the space-time window comprises a plurality of windowed traces;
determining an objective function based, at least in part, on the space-time window;
determining an array of PS-receiver statics based, at least in part, on an extremum of the objective function, wherein the array comprises one PS-receiver static for each windowed trace;
forming a statics-corrected PS-seismic dataset based, at least in part, on the PS-seismic dataset, the array of PS-receiver statics, and the array of PP-source statics, wherein the statics-corrected PS-seismic dataset comprises a plurality of source-static and receiver-static corrected PS-stacked traces; and
forming a seismic image based, at least in part, on the statics-corrected PS-seismic dataset.