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:
Aug. 16, 2022
Filed:
Dec. 04, 2020
Applicant:
Saudi Arabian Oil Company, Dhahran, SA;
Inventors:
Simone Musso, Houston, TX (US);
Sivaprakash Shanmugam, Houston, TX (US);
Assignee:
Saudi Arabian Oil Company, Dhahran, SA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 21/00 (2006.01); E21B 43/25 (2006.01); C09K 8/42 (2006.01);
U.S. Cl.
CPC ...
E21B 43/25 (2013.01); C09K 8/426 (2013.01); E21B 21/003 (2013.01);
Abstract
A method of reducing lost circulation in a wellbore includes introducing a fluid including a fluid loss control additive comprising shape memory polymer, shape memory alloy, or both into the wellbore. The method further includes allowing the fluid loss control additive to lodge within fractures within a subsurface formation in the wellbore. The method further includes allowing the fluid loss control additive to expand within the fractures, thereby forming a barrier between the wellbore and the subsurface formation to reduce lost circulation in the wellbore.