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:
Nov. 21, 2023

Filed:

Mar. 14, 2022
Applicant:

Chevron U.s.a. Inc., San Ramon, CA (US);

Inventors:

Jinsong Chen, Fulshear, TX (US);

Huafeng Liu, Bellaire, TX (US);

Andrey Hanan Shabelansky, Bellaire, TX (US);

Cory James Hoelting, West University Place, TX (US);

Min Yang, Houston, TX (US);

Ying Tan, Sugar Land, TX (US);

Maisha Lara Amaru, Houston, TX (US);

Assignee:

Chevron U.S.A. Inc., San Ramon, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 1/34 (2006.01); G01V 1/28 (2006.01); G06N 7/01 (2023.01);
U.S. Cl.
CPC ...
G01V 1/345 (2013.01); G01V 1/282 (2013.01); G06N 7/01 (2023.01); G01V 2210/60 (2013.01); G01V 2210/74 (2013.01);
Abstract

A method is described for seismic depth uncertainty analysis including receiving wavelet basis functions and cutoff thresholds and randomly perturbing wavelet coefficients in reduced wavelet space based on the wavelet basis functions and the cutoff thresholds to generate a plurality of random wavelet fields; receiving a reference model in a depth domain; transforming the plurality of random wavelet fields to the depth domain and combining them with the reference model to form candidate models; performing a hierarchical Bayesian modeling with Markov Chain Monte Carlo (MCMC) sampling methods using the candidate models as input to generate a plurality of realizations; and computing statistics of the plurality of realizations to estimate depth uncertainty. The method may be executed by a computer system.


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