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:
Mar. 31, 2026

Filed:

Jul. 31, 2025
Applicant:

Mazama Energy, Inc., Seattle, WA (US);

Inventors:

Gabrijel Grubac, Zrenjanin, RS;

Abdel Wadood Mohamed El-Rabaa, Plano, TX (US);

Sriram Vasantharajan, Plano, TX (US);

Assignee:

MAZAMA ENERGY, INC., Frisco, TX (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/30 (2006.01); E21B 43/17 (2006.01); E21B 49/00 (2006.01); F03G 4/00 (2006.01);
U.S. Cl.
CPC ...
E21B 43/17 (2013.01); E21B 49/008 (2013.01); E21B 2200/20 (2020.05); F03G 4/072 (2021.08);
Abstract

Systems and processes for assessing connectivity between subterranean injector and producer wells. One process includes assessing pressure analytics before, during or after injection of stimulation fluid into a well. Pressure communication analytics includes analysis of pressure inflection at selected downhole locations and measuring one or more of: time to a first pressure inflection of a test fluid at the selected downhole locations; volume of test fluid pumped during time to first pressure inflection at the selected downhole locations; differential of pressure at the selected downhole locations from moment of the first pressure inflection to end of injection of test fluid in a well; pressure derivative at the selected downhole locations during entire time of injection of test fluid into the well; and pressure response at selected downhole locations at and post shut-in of injection of the test fluid, and composing a connectivity matrix which classifies observed pressure.


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