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:
Jan. 09, 2024

Filed:

Sep. 20, 2021
Applicant:

Baker Hughes Oilfield Operations Llc, Houston, TX (US);

Inventors:

Bastian Baecker, Falkensee, DE;

Erik Lehne, Celle, DE;

Svenja Erdmann, Isernhagen KB, DE;

Salar Azizi, Hannover, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 21/08 (2006.01); E21B 49/08 (2006.01); G01N 33/28 (2006.01);
U.S. Cl.
CPC ...
G01N 33/2823 (2013.01); E21B 21/08 (2013.01); E21B 49/088 (2013.01); E21B 49/0875 (2020.05);
Abstract

A method for determining a hydrocarbon concentration from drilling fluid includes pumping the drilling fluid into a wellbore and circulating a sample of the drilling fluid uphole from the wellbore so that δC isotopic signatures can be determined for one or more hydrocarbon components and for methane in the sample where the methane includes natural methane originating from the earth formation and artificially-produced methane caused by drill bit metamorphism (DBM). A processor is adapted to determine the concentration of the natural methane in the sample based in part on the δC isotopic signatures which may be performed during the drilling of the wellbore.


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