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:
Jul. 16, 2024

Filed:

Nov. 30, 2021
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Mohammed Ali Al-Malki, Dhahran, SA;

Mahmoud F. Abughaban, Dhahran, SA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 21/08 (2006.01); E21B 21/06 (2006.01); E21B 44/00 (2006.01); E21B 45/00 (2006.01); E21B 49/00 (2006.01);
U.S. Cl.
CPC ...
E21B 21/08 (2013.01); E21B 21/06 (2013.01); E21B 44/00 (2013.01); E21B 45/00 (2013.01); E21B 49/003 (2013.01); E21B 2200/20 (2020.05);
Abstract

A method may include obtaining, in real-time with a drilling operation, density data regarding a drilling fluid circulating in a wellbore. The method may further include determining mud velocity data of the drilling fluid in the wellbore based on flow rate data and a borehole area of the wellbore. The method may further include determining a cuttings weight of the drilling fluid in the wellbore based on the density data. The cuttings weight and the mud velocity data may correspond to a respective segment length among various segment lengths of the wellbore. The method may further include determining, based on the cuttings weight, the mud velocity data, and a hole cleaning model, various hole cleaning efficiency (HCE) values for the segment lengths of the wellbore. The method may further include determining whether an HCE value among the HCE values fails to satisfy a predetermined criterion.


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