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.

Date of Patent:
Feb. 28, 2023

Filed:

Apr. 06, 2020
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Hongwei Liu, Dhahran, SA;

Yi Luo, Dhahran, SA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 1/30 (2006.01); E21B 49/00 (2006.01); G01V 1/28 (2006.01);
U.S. Cl.
CPC ...
G01V 1/303 (2013.01); E21B 49/00 (2013.01); G01V 1/282 (2013.01); E21B 2200/20 (2020.05); G01V 2210/612 (2013.01); G01V 2210/6161 (2013.01); G01V 2210/6222 (2013.01);
Abstract

Disclosed are methods, systems, and computer-readable medium to perform operations including: generating, using a source wavelet and a current velocity model, modeled seismic data of the subterranean formation; applying a pre-condition to a seismic data residual calculated using the modeled seismic data and acquired seismic data from the subterranean formation; generating a velocity update using the source wavelet and the pre-conditioned seismic data residual; updating, using the velocity update, the current velocity model to generate an updated velocity model; determining that the current velocity model satisfies a predetermined condition; and responsively determining that the updated velocity model is the velocity model of the subterranean formation.


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