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:
Feb. 20, 2024

Filed:

May. 16, 2022
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Salem Alharbi, Dammam, SA;

Syed Muhammad Ali, Abqaiq, SA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 4/20 (2006.01); E21B 21/00 (2006.01); E21B 4/02 (2006.01); E21B 10/26 (2006.01);
U.S. Cl.
CPC ...
E21B 4/20 (2013.01); E21B 4/02 (2013.01); E21B 10/26 (2013.01); E21B 21/00 (2013.01);
Abstract

Methods for operating drill strings in a wellbore include providing a drilling apparatus that includes a Kelly drive system for rotating the drill string that includes a bottom hole assembly (BHA) and a Kelly engaged with the Kelly drive system. The BHA includes a hydraulically driven rotating string reamer coupled to the drill string uphole from a drill bit and a near-bit reamer. The hydraulically driven rotating string reamer includes a hydraulic drive operatively coupled to a string reamer. The methods include translating the BHA axially through the wellbore and, while translating the BHA, circulating drilling fluid through the drill string, which causes the hydraulic drive to rotate the string reamer relative to the drill string, drill bit, and near-bit reamer. Rotation of the string reamer by the hydraulic drive reams away imperfections extending radially inward from a wellbore wall of the wellbore.


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