Baker Hughes Corporation

Charles Perricone

Billy G Chesser

George W Bettge

A drilling fluid system comprising a brine and a quantity of cationic copolymers comprising a ratio of acrylamide monomers to cationic derivatives of acrylamide monomers, wherein the quantity and the ratio are effective to maintain effective rheology and fluid loss control in said drilling fluid system at temperatures of at least about 250&#xb0; C. for at least about 16 hours.

Drilling fluid systems with improved fluid loss properties

A drilling fluid system comprising a brine and a quantity of cationic copolymers comprising a ratio of acrylamide monomers to cationic derivatives of acrylamide monomers, wherein the quantity and the ratio are effective to maintain effective rheology and fluid loss control in said drilling fluid system at temperatures of at least about 250&deg; C. for at least about 16 hours.

Growing community of inventors

Montgomery, TX, United States of America

Charles Perricone