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. 06, 2024
Filed:
Aug. 12, 2022
Saudi Arabian Oil Company, Dhahran, SA;
Hasmukh A. Patel, Katy, TX (US);
Younane Abousleiman, Norman, OK (US);
Ashok Santra, The Woodlands, TX (US);
Saudi Arabian Oil Company, Dhahran, SA;
Abstract
In accordance with one or more embodiments of the present disclosure, a host-guest lost circulation material (LCM) composition for sealing lost circulation zones in wellbores includes an aqueous solution; one or more linear polymer chains, the linear polymer chains comprising polyethylene glycols (PEG) with molecular weights greater than 2500 g/mol, polypropylene glycols (PPG), polydimethylsiloxanes (PDMS), or combinations thereof; and one or more cyclic molecules comprising alpha cyclodextrin, beta cyclodextrin, gamma cyclodextrin, or combinations thereof, and wherein the one or more cyclic molecules form a host-guest structure around the one or more linear polymer chains utilizing van der Waals forces.