Friction reducing composition and method

Details Friction reducing composition and method Friction reducing composition and method

C - Chemistry, Metallurgy

08

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C08L 101/14 (2006.01) C08J 3/075 (2006.01) C08K 5/05 (2006.01) C08K 5/20 (2006.01) C08K 5/32 (2006.01) C08L 39/00 (2006.01) C09K 8/38 (2006.01) C09K 8/70 (2006.01) E21B 21/14 (2006.01) E21B 33/138 (2006.01) E21B 43/26 (2006.01) F17D 1/16 (2006.01) F17D 1/17 (2006.01) F17D 3/08 (2006.01)

Patent

CA 2460124

Water soluble nonionic friction reducers and added to coacervate gels having excellent shear viscosities and other properties. A preferred gel comprises poly diallyl dimethyl ammonium chloride, a lesser amount of sodium lauryl sulfonate, and lauryl alcohol. Excellent friction reducing properties are manifested; a particularly practical use for the compositions is in subterranean formation fracturing.

L'invention concerne des réducteurs du frottement non ioniques hydrosolubles ajoutés à des gels coacervats présentant d'excellents coefficients de viscosité de cisaillement ainsi que d'autres propriétés. Un gel préféré comporte du chlorure de poly diallyl diméthyl ammonium, et une moindre quantité de lauryl sulfonate de sodium et un alcool laurylique. D'excellentes propriétés réductrices du frottement on été mises en évidence. Ces compositions se sont révélées particulièrement pratiques dans la fracturation souterraine.

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