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:
May. 25, 2021
Filed:
Mar. 05, 2018
Xin Zhan, Sugar Land, TX (US);
Dezhi Chu, Houston, TX (US);
John E. Bishop, Houston, TX (US);
Xinyou LU, Bellaire, TX (US);
David D Mcadow, Houston, TX (US);
Brent D. Wheelock, Houston, TX (US);
Xin Zhan, Sugar Land, TX (US);
Dezhi Chu, Houston, TX (US);
John E. Bishop, Houston, TX (US);
Xinyou Lu, Bellaire, TX (US);
David D McAdow, Houston, TX (US);
Brent D. Wheelock, Houston, TX (US);
ExxonMobil Upstream Research Company, Spring, TX (US);
Abstract
A method for inversion of 4D seismic data, including: determining time shift between baseline and monitor geophysical datasets; determining time strain from the time shift; iteratively repeating until a stopping criteria is satisfied, performing an iterative elastic AVO inversion with a 4D difference providing an update, from an initial model including the time strain, to generate an updated time strain and an updated physical property model, wherein the stopping criteria is a misfit between synthetic data generated from the updated physical property model and the 4D difference being within a predetermined noise level generating final values for the physical property model; and converting, with a rock physics model or a reservoir simulation model, the final values to saturation and/or pressure changes for a subsurface region.