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. 25, 2026

Filed:

Dec. 28, 2023
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Faisal Alshuhail, Dhahran, SA;

Abdulrahman Alshuhail, Dhahran, SA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 49/00 (2006.01); E21B 21/06 (2006.01); G01N 33/24 (2006.01); G01V 5/06 (2006.01);
U.S. Cl.
CPC ...
E21B 49/005 (2013.01); G01N 33/24 (2013.01); G01V 5/06 (2013.01); E21B 21/065 (2013.01);
Abstract

System and method for on surface calibration of cuttings depth in underbalanced coiled tubing drilling including a drill string for drilling a well and collecting drill cuttings at a first point of a depth interval and at a second point of the depth interval, a gamma ray device at the surface for measuring gamma ray response for drill cuttings at the first point and the second point, and a bottom hole assembly tool on the drill string for measuring downhole gamma readings at a plurality of depths between the first point and the second point of the depth interval. The system further includes an operator on surface for determining a calibration and validation assessment related to the depth interval including a comparison between the gamma ray response and an average of the downhole gamma readings to confirm accuracy of the depth interval of the drill cuttings.


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Alshuhail, Faisal. (2026). On surface gamma ray sensor for calibrating cuttings depth in underbalanced coiled tubing drilling rigs (U.S. Patent No. 12716353). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12716353

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