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:
Mar. 25, 2025
Filed:
Aug. 14, 2023
Baker Hughes Oilfield Operations Llc, Houston, TX (US);
Rostyslav Dolog, Houston, TX (US);
Qusai A. Darugar, Houston, TX (US);
Radhika Suresh, Sugar Land, TX (US);
Oleg Mazyar, Katy, TX (US);
Abstract
An encapsulated lost circulation material includes: a particulate having a core including a compressed shape-memory polymer foam, and a disintegrating agent, the disintegrating agent including at least one of a phase change material or a gas-producing material; and a shell encapsulating the core. A method of reducing lost circulation includes: introducing into a subsurface a wellbore fluid including the encapsulated lost circulation material; heating the disintegrating agent to cause the phase change material to expand, or to cause the gas-producing material to produce a gas, or a combination thereof to break the shell; and releasing the compressed shape-memory polymer foam from the encapsulated lost circulation material; expanding the released shape-memory polymer foam; and filling a void or fracture of the subsurface with the expanded compressed shape-memory polymer foam to reduce fluid loss.