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.
Patent No.:
Date of Patent:
Feb. 21, 2023
Filed:
Mar. 23, 2021
Applicant:
Saudi Arabian Oil Company, Dhahran, SA;
Inventor:
Graham Hitchcock, Aberdeen, GB;
Assignee:
Saudi Arabian Oil Company, Dhahran, SA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 28/00 (2006.01); E21B 29/10 (2006.01); E21B 33/14 (2006.01); E21B 43/11 (2006.01); E21B 33/138 (2006.01); E21B 23/01 (2006.01);
U.S. Cl.
CPC ...
E21B 28/00 (2013.01); E21B 29/10 (2013.01); E21B 33/138 (2013.01); E21B 33/14 (2013.01); E21B 43/11 (2013.01); E21B 23/01 (2013.01);
Abstract
A method and a tool for sealing cracked casing cement are described. In a wellbore in which a casing is deployed, the casing and the wellbore define an annulus sealed with a casing cement. The method includes vibrating a portion of the casing cement adjacent an outer wall of the casing. The portion of the casing cement includes multiple discrete cracks. Vibrating the casing cement connects the discrete cracks to form a crack network. After vibrating the casing cement to form the crack network, a sealant is injected into the crack network through the casing. The sealant seals the crack network.