公开(公告)号：US10324207B2

公开(公告)日：2019-06-18

申请号：US15337561

申请日：2016-10-28

Applicant: CGG SERVICES SA

Inventor： Adel Khalil ,  Henning Hoeber ,  Jeshurun Hembd ,  Adriano Gomes ,  Gordon Poole ,  Francesco Perrone ,  Lorenzo Casasanta ,  Graham Roberts ,  Andrew Ratcliffe

IPC: G01V1/34 ,  G01V1/28 ,  G01V1/36 ,  G01V1/32 ,  G01V1/30

Abstract: Computing device, computer instructions and method for calculating an image of a subsurface based on least square migration and image de-convolution using a matching operator F. The method includes receiving seismic data d; computing a first image m of the subsurface based on the seismic data d; computing a second image h of the subsurface based on the first image m; applying a transform operation to the first and second images m and h to obtain a first transform of the first image and a second transform of the second image; calculating the matching operator F by matching the first transform of the first image to the second transform of the second image; and generating an updated image mupdated of the subsurface based on the matching operator F and the first transform of the first image.

公开(公告)号：US11614554B2

公开(公告)日：2023-03-28

申请号：US15111011

申请日：2015-01-13

Applicant: CGG SERVICES SA

Inventor： Patrice Guillaume ,  Francesco Perrone

IPC: G01V1/28 ,  G01V1/30

Abstract: Methods and systems for processing seismic data are presented. Primary wave (P) seismic data (PP data) and shear wave (P) seismic data (PS data) are jointly inverted as part of a nonlinear tomography process which adheres to one or more co-depthing constraints.