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:
Sep. 15, 2026

Filed:

Jun. 06, 2023
Applicants:

Halliburton Energy Services, Inc., Houston, TX (US);

Petroleo Brasileiro S.a.—petrobas, Rio de Janeiro, BR;

Inventors:

Christopher Jones, Katy, TX (US);

Ralph Engel Piazza, Rio de Janeiro, BR;

Anthony H. Van Zuilekom, Houston, TX (US);

Megan Renee Pearl, Spring, TX (US);

Luiz Alexandre Sacorague, Rio de Janeiro, BR;

Alexandre Jaime Mello Vieira, Rio de Janeiro, BR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 49/08 (2006.01); G01V 8/10 (2006.01);
U.S. Cl.
CPC ...
E21B 49/088 (2013.01); G01V 8/10 (2013.01); E21B 49/0875 (2020.05);
Abstract

A method and system may include receiving, via one or more sensors in a wellbore formed in a subsurface formation, measurements of a concentration of an interactive component and a concentration of a non-interactive component in a formation fluid from the subsurface formation, wherein the non-interactive component and the interactive component comprise a component in the formation fluid that is non-interactive and interactive, respectively, with respect to a drilling fluid. The method and system may further include determining a level of contamination from a drilling fluid filtrate that contaminates the formation fluid based on the non-interactive component concentration in the formation fluid and the interactive component concentration in the formation fluid.


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