Friction reducer compositions
AssigneeMomentive Performance Materials Inc.
InventorsMukesh Kumar, Kalman Koczo, Kostas Spyropoulos, John Terracina, Mark D. Leatherman, Benjamin Falk, Olusegun Matthew Falana
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Abstract
A composition for treating an aqueous fluid includes an ionic polyacrylamide and a silicon polyether. The composition can be an oil-in-water emulsion or a water-in-oil emulsion. The ionic polyacrylamide can he an anionic polyacrylamide or a cationic polyacrylamide. The composition can he employed, for example, as a friction reducing additive for water based fracturing fluid, or a drilling mud additive.
Claims19
A friction reducer composition for water based liquids comprising:
- a) an ionic polyacrylamide;
- and
- b) a silicon polyether.
A friction reduction method for treating an aqueous fluid comprising:
- combining an ionic polyacrylamide and a silicon polyether with said aqueous fluid.
The method of claim (wherein said silicon polyether is selected from the group consisting of
- a) silicone polyether(s) defined by the formula:
- Me3Si—O—SiMe(R)—O—SiMe3.
- wherein
- R=(C3H6)O(C2H4O)a(C3H6O)b(C4H8O)cZ;
- a=4-17;
- b=0-26;
- c=0-26 and
- Z is H, acetyl or a monovalent hydrocarbon group containing from 1 to 12 carbon atoms;
- b) silicone polyether(s) defined by the formula:
- Me3Si—[OSiMe2]x—[O—SiMe(R)]y—O—SiMe3,
- wherein
- x=0-74:
- y=1-10;
- R=(C3H6)O(C2H4O)a(C3H6O)b(C4H8O)cZ;
- a=5-17;
- b=0-26:
- c=0-26 and
- Z is H, acetyl or a monovalent hydrocarbon group containing from 1 to 12 carbon atoms;
- e) silicone polyether(s) defined by the formula:
- {[CH2CH(OH)CH2O(CH2)3SiMe2—O—[SiMe2O]x—SiMe2—(CH2)3OCH2CH(OH)][(H)NCH—(CH3)—CH2O(C3H6O)b(C2H4O)aCH2CH(CH3)N(H)]}
- x=4-100;
- a=5-50 and
- b=3-20;
- d) silicone polyether(s) defined by the formula:
- H—[N(H)(R1)R2Si(OR3)3-a-b-c(OR4)a(R5Si(OR6)d(R7)e)bR8c]—N(H)(R1)R2Si(OR3)3,
- wherein
- R1=monovalent hydrocarbon radical containing 1-20 carbon atoms;
- R2=divalent linear or branched hydrocarbon radical containing 1-60 carbon atoms;
- R4=hydrocarbon radical containing 3-200 carbon atoms;
- R5=selected from, a group consisting of oxygen or a divalent linear or branched hydrocarbon radical containing 1-60 carbon atoms;
- R3, R6, R7 and R8=monovalent linear or branched hydrocarbon radical containing 1-200 carbon atoms;
- a, b, c=0-3;
- subject to the limitation that a+b+c≦3 and
- d, e=0-3;
- subject to the limitation that d+e≦3;
- and
- e) silicon polyether(s) defined by the formula:
- Me3Si(C2H4)SiMe2(C3H6O)(C2H4O)xZ,
- x=3-17 and
- Z is H, acetyl or a monovalent hydrocarbon group containing from 1 to 12 carbon atoms.
Dependencies are inferred from the claim text.