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:
Jun. 27, 2023
Filed:
Sep. 03, 2020
Aramco Services Company, Houston, TX (US);
Hasmukh A. Patel, Katy, TX (US);
Carl Thaemlitz, Cypress, TX (US);
ARAMCO SERVICES COMPANY, Houston, TX (US);
Abstract
A wellbore fluid may include a base fluid and at least one cationic heterocyclic polymer in an amount effective to increase a viscosity of the base fluid, the cationic heterocyclic polymer includes at least two distinct cyclic monomers, at least one of which has at least two heteroatoms in the cyclic structure. A method of drilling a wellbore may introduce such wellbore fluid into the wellbore. A method of producing a cationic heterocyclic polymer may include reacting, in a solvent selected from the group that includes tetrahydrofuran, dioxane, dichloromethane, alcoholic solvents, chlorinated solvents, aromatic hydrocarbon solvents, or mixture thereof, at least two distinct cyclic monomers, at least one of which has at least two heteroatoms in the cyclic structure.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile