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. 15, 2023

Filed:

Aug. 30, 2021
Applicant:

Schlumberger Technology Corporation, Sugar Land, TX (US);

Inventors:

Hadrien Dumont, Paris, FR;

Christopher Harrison, Auburndale, MA (US);

Youxiang Zuo, Burnaby, CA;

Christopher Albert Babin, Waveland, MS (US);

Li Chen, Beijing, CN;

Vinay K. Mishra, Katy, TX (US);

German Garcia, Katy, TX (US);

Abhishek Agarwal, Sugar Land, TX (US);

Matthew T. Sullivan, Westwood, MA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 49/10 (2006.01); E21B 47/07 (2012.01); E21B 49/08 (2006.01);
U.S. Cl.
CPC ...
E21B 49/10 (2013.01); E21B 47/07 (2020.05); E21B 49/0875 (2020.05);
Abstract

Methods for obtaining in-situ, multi-temperature measurements of fluid properties, such as saturation pressure and asphaltene onset pressure include obtaining a sample of formation fluid using a downhole acquisition tool positioned in a wellbore in a geological formation. The downhole acquisition tool may be stationed at a first depth in the wellbore that has an ambient first temperature. While stationed at the first depth, the downhole acquisition tool may test a first fluid property of the sample to obtain a first measurement point at approximately the first temperature. The downhole acquisition tool may be moved to a subsequent station at a new depth with an ambient second temperature, and another measurement point obtained at approximately the second temperature. From the measurement points, a temperature-dependent relationship of the first fluid property of the first formation fluid may be determined.


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