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:
Oct. 21, 2025

Filed:

Feb. 28, 2025
Applicant:

Southwest Petroleum University, Chengdu, CN;

Inventors:

Nutao Wang, Chengdu, CN;

Yue Cao, Chengdu, CN;

Chengyang Zhang, Chengdu, CN;

Hang Li, Chengdu, CN;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01V 99/00 (2024.01); E21B 49/00 (2006.01);
U.S. Cl.
CPC ...
G01V 99/00 (2013.01); E21B 49/006 (2013.01);
Abstract

A stress sensitivity analysis method for a fractured gas reservoir includes: S1, calculating a material balance quasi-time; S2, calculating a normalized production; S3, calculating a single well controlled reserve; S4, analyzing and judging a stress sensitivity. Based on the normalized quasi-pressure and quasi-time, the gas well test analysis is carried out, and the stress sensitivity of the actual reservoir is determined by taking the original bottom hole flowing pressure of the actual reservoir as the starting point, the obtained reservoir stress sensitivity is more in line with the actual situation of the reservoir, and the obtained reservoir stress sensitivity is more accurate, which provides more valuable values for reservoir protection, oilfield development, and development planning.


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