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:
Aug. 12, 2025

Filed:

Aug. 15, 2022
Applicant:

Conocophillips Company, Houston, TX (US);

Inventors:

Martin C. Krueger, Houston, TX (US);

Shaina A. Kelly, Houston, TX (US);

Gerald E. Michael, Houston, TX (US);

Thiago B. Simoes Correa, Houston, TX (US);

Russell Bone, Houston, TX (US);

Assignee:

ConocoPhillips Company, Houston, TX (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 30/68 (2006.01); G01N 9/00 (2006.01); G01N 30/02 (2006.01); G01N 33/28 (2006.01);
U.S. Cl.
CPC ...
G01N 30/68 (2013.01); G01N 9/00 (2013.01); G01N 33/2823 (2013.01); G01N 2030/025 (2013.01);
Abstract

Methods of determining if a test fluid is inert to reservoir oil at RTP, by assaying a composition, density and bubble or dew point of live oil to generate a first dataset, equilibrating a sample of live oil with a test fluid at RTP to generate an oil phase; assaying a composition, density and bubble or dew point of the oil phase to generate a second dataset; comparing the first and second datasets, wherein significant changes in the datasets indicate that the test fluid is not inert to reservoir oil at RTP. By contrast, if there are no significant changes, the test fluid is inert, and would therefore be suitable to collecting core samples at RTP. Various options for inert fluids are also provided.


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