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. 13, 2025

Filed:

May. 02, 2022
Applicants:

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

University of Pittsburgh—of the Commonwealth System of Higher Education, Pittsburgh, PA (US);

Inventors:

Andrew Paul Bunger, Pittsburgh, PA (US);

Amr Said El-Fayoumi, Houston, TX (US);

Jose I. Adachi, Houston, TX (US);

Karim S. Zaki, Houston, TX (US);

Qiao Lu, Pittsburgh, PA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/26 (2006.01); E21B 47/06 (2012.01);
U.S. Cl.
CPC ...
E21B 43/26 (2013.01); E21B 47/06 (2013.01);
Abstract

A dissipation equilibrium value for a well operation may be determined based on a height of a fracture within a layer and a limit on the change of the height of the fracture (fracture height change limit). A pressure limit for the well operation may be determined based on the dissipation equilibrium value, stress in the layer, and stress in a bounding layer. The pressure limit may be used to control the pressure of the well during the well operation, and prevent growth of the fracture beyond the fracture height change limit.


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