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:
Mar. 03, 2020

Filed:

Aug. 09, 2018
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventor:

Sedat Inan, Dhahran, SA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 33/24 (2006.01); G01N 1/44 (2006.01); B09C 1/06 (2006.01); B09C 1/00 (2006.01); G01N 1/34 (2006.01); G01N 25/00 (2006.01); B09B 3/00 (2006.01);
U.S. Cl.
CPC ...
G01N 33/241 (2013.01); B09C 1/005 (2013.01); B09C 1/065 (2013.01); G01N 1/34 (2013.01); G01N 1/44 (2013.01); G01N 25/00 (2013.01); B09B 3/0083 (2013.01);
Abstract

A rock sample includes multiple rock samples that are each obtained from the borehole. The rock samples have been exposed to contamination during a drilling operation to drill the borehole. The rock sample is split into a first sample portion and a second sample portion. The first sample portion is decontaminated with a solvent. The second sample portion is decontaminated by thermovaporization for an initial duration of time at an initial thermovaporization temperature below that of a cracking temperature of an organic matter carried within the rock sample. A difference between a first pyrolysis Tmax value of the first sample portion decontaminated by the solvent and a second pyrolysis Tmax value of the second sample portion decontaminated by the thermovaporization is determined to satisfy a decontamination level threshold. The remainder of rock samples are decontaminated by the thermovaporization in response to determining that the difference satisfies the decontamination level threshold.


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