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:
May. 19, 2026

Filed:

Jun. 29, 2023
Applicant:

Aramco Services Company, Houston, TX (US);

Inventor:

Yanhui Han, Houston, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 20/00 (2024.01); E21B 41/00 (2006.01); E21B 49/00 (2006.01);
U.S. Cl.
CPC ...
G01V 20/00 (2024.01); E21B 41/0057 (2013.01); E21B 49/00 (2013.01); E21B 2200/20 (2020.05);
Abstract

A method for evaluating potential damage to a cement sheath in an underground gas storage facility during an earthquake. A ground surface earthquake (EQ) wave is obtained on which a deconvolution analysis is performed, producing a subsurface EQ wave. Static and dynamic mechanical properties of a casing-cement-rock well system are obtained, and a computational model of the underground gas storage facility is generated. A gas pressure value is applied to the model, and, after boundary conditions are applied, a static equilibrium state is simulated. The subsurface EQ wave and boundary conditions are applied to the model, and, based on the gas pressure value, a dynamic seismic event is simulated. Based on the effect of the seismic simulation on the integrity of the underground gas storage facility, at least one parameter related to the operation of the underground gas storage facility may be adjusted.


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