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. 19, 2024

Filed:

Dec. 01, 2022
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Ahmed Abdullah Al-Mousa, Doha, SA;

Marius Neascu, Dhahran, SA;

Omar M. Alhamid, Dammam, SA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 37/00 (2006.01); E21B 33/12 (2006.01); E21B 34/06 (2006.01); E21B 34/14 (2006.01); E21B 43/08 (2006.01);
U.S. Cl.
CPC ...
E21B 37/00 (2013.01); E21B 34/063 (2013.01); E21B 34/14 (2013.01); E21B 33/12 (2013.01); E21B 43/08 (2013.01);
Abstract

A method for removing filter cake from a subterranean wellbore includes running a completion string into the wellbore on production tubing, the completion string including one or more screen assemblies coupled therein, conveying a running tool through the production tubing to a shifting tool arranged within the completion string, opening a circulation port of the shifting tool with the running tool, flowing a spotting fluid through the running tool and the shifting tool and discharging the spotting fluid from the completion string into an annulus defined between the completion string and the wellbore, interacting the spotting fluid with the filter cake to remove the filter cake from a wall of the wellbore, and circulating the spotting fluid from the annulus and into the production tubing through the circulation port.


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