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. 02, 2023

Filed:

Jul. 15, 2021
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Sebastian Robert Glynn Henderson, Dhahran, SA;

Sedat Inan, Dhahran, SA;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 33/28 (2006.01); G01N 9/36 (2006.01); G01N 21/3504 (2014.01);
U.S. Cl.
CPC ...
G01N 33/2823 (2013.01); G01N 9/36 (2013.01); G01N 21/3504 (2013.01);
Abstract

A method of determining an API gravity of a crude oil is provided. The method includes obtaining a reservoir sample containing the crude oil and heating the sample to a first temperature using an oxidative testing apparatus. The sample is then heated to a second temperature, which is greater than the first temperature, over a period using a fixed heating rate. The rate of carbon dioxide emission from the sample is detected during the period of heating to the second temperature. The peak rate of carbon dioxide emission from the sample is then determined and the peak carbon dioxide emission temperature associated with the peak rate of carbon dioxide emission is also determined. The API gravity of the crude oil in the reservoir sample is determined using an empirical correlation between API gravity and the peak carbon dioxide emission temperature associated with the fixed heating rate.


Find Patent Forward Citations

Henderson, Sebastian Robert Glynn. (2023). Oil api determination of reservoir rocks by oxidation (U.S. Patent No. 11639921). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11639921

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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