公开(公告)号：US20190277993A1

公开(公告)日：2019-09-12

申请号：US16264662

申请日：2019-01-31

Applicant: Chengdu University of Technology

Inventor： Xuehua CHEN ,  Shuaishuai JIANG ,  Jie ZHANG ,  Wei JIANG ,  Bingnan LV

IPC: G01V1/50

Abstract: A method for estimating the depth-domain seismic wavelets from depth-domain seismic data and synthesizing depth-domain seismic records. The method includes: obtaining depth coordinates and P-wave velocity v and density from well log, calculating a corresponding reflectivity series r; performing constant-velocity depth conversion for a seismic trace S and a reflectivity series r by using a velocity v, as a reference velocity to obtain the converted seismic trace S1 and the converted reflectivity series r1; and estimating a depth-domain seismic wavelet w based on the Gibbs sampling method; synthesizing depth-domain seismic record by using the P-wave v, the reflectivity series r and the estimated depth-domain seismic wavelet w.