E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/26 (2006.01) C09K 3/00 (2006.01) C09K 8/68 (2006.01) C09K 8/72 (2006.01) C09K 8/74 (2006.01) F17D 1/17 (2006.01)
Patent
CA 2479210
A method of reducing friction resulting from turbulent flow in an aqueous fracturing fluid in an oil field fracturing process comprising adding to the aqueous fracturing fluid an effective friction-reducing amount of one or more dispersion polymers, wherein the dispersion polymer is composed of from about 5 to about 95 mole percent of one or more nonionic monomers and from about 95 to about 5 mole percent of one or more cationic or anionic monomers and has a molecular weight of at least 100,000.
La présente invention concerne un procédé de réduction du frottement causé par l'écoulement turbulent d'un liquide de fracturation aqueux dans un processus de fracturation de champ pétrolifère, lequel procédé consiste à ajouter au liquide de fracturation aqueux une quantité efficace pour réduire le frottement d'un ou plusieurs polymères de dispersion, le polymère de dispersion étant composé d'environ 5 à environ 95 pour cent molaire d'un ou plusieurs monomères non-ioniques et d'environ 95 à environ 5 pour cent molaire d'un ou plusieurs monomères cationiques ou anioniques et possédant un poids moléculaire d'au moins 100 000.
Blair Cecil C.
Chang Kin Tai
Gerken Kurt S.
Treybig Duane S.
Bcf Llp
Nalco Energy Services Inc.
Ondeo Nalco Energy Services L.p.
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