The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 18, 2019
Filed:
Nov. 03, 2016
Cgg Services SA, Massy, FR;
Min Wang, Singapore, SG;
Yi Xie, Singapore, SG;
Weiquan Xu, Singapore, SG;
Stephen Kefeng Xin, Kuala Lumpur, MY;
CGG SERVICES SAS, Massy, FR;
Abstract
Computing device, computer instructions and method for determining an image of a surveyed subsurface. The method includes receiving recorded wave fields D recorded with seismic sensors over the subsurface; generating a series of modified recorded wave fields Dbased on the recorded wave fields D; iteratively applying an objective function Fto (1) one element Dof the series of modified recorded wave fields Dand (2) predicted wave fields P, where 'i' is an index associated with a given iteration; calculating with a computing device an updated velocity model mbased on a previous velocity model mand a step length; and producing the image of the subsurface based on the recorded wave fields D and the updated velocity model m. The predicted wave fields Pare predicted by the previous velocity model m.