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:
Dec. 19, 2023

Filed:

Mar. 09, 2021
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Guodong Zhan, Dhahran, SA;

Jianhui Xu, Dhahran, SA;

Abdulwahab Al-Johar, Dhahran, SA;

Bodong Li, Dhahran, SA;

Timothy E. Moellendick, Dhahran, SA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 29/02 (2006.01); E21B 21/14 (2006.01); E21B 33/124 (2006.01);
U.S. Cl.
CPC ...
E21B 29/02 (2013.01); E21B 21/14 (2013.01); E21B 33/124 (2013.01);
Abstract

A repairing assembly includes a housing, a packer, and a thermal spray assembly. The housing is attached to a wellbore string disposed within a wellbore with casing. The packer is coupled to the housing. The packer is set on a wall of the wellbore to bound a repair zone defined between the packer and an end of the housing opposite the packer. The housing or the packer includes a fluid channel in fluid communication with the wellbore string or an annulus of the wellbore. The thermal spray assembly is coupled to the housing and sprays a damaged section of the casing with a thermal spray to repair the damaged section. The housing flows an inert gas received from the wellbore string or the annulus of the wellbore and through the fluid channel into the repair zone until an oxygen in the repair zone is substantially removed from the repair zone.


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