Aqueous fracturing fluid

Details Aqueous fracturing fluid Aqueous fracturing fluid

C - Chemistry, Metallurgy

09

K

C09K 8/68 (2006.01) E21B 43/26 (2006.01)

Patent

CA 2471340

The invention concerns an aqueous viscoelastic fracturing fluid for use in the recovery of hydrocarbons. According to the invention, the fluid comprises a viscoelastic surfactant and a hydrophobically-modified polymer wherein the concentration of the hydrophobically-modified polymer is comprised between its overlap concentration c* and its entanglement concentration ce.

La présente invention concerne un liquide de fracturation aqueux viscoélastique utilisé pour l'extraction d'hydrocarbures. Selon l'invention, le liquide comprend un tensioactif viscoélastique et un polymère modifié d'un point de vue hydrophobe, la concentration du polymère modifié d'un point de vue hydrophobe étant comprise entre sa concentration de recouvrement c* et sa concentration d'enchevêtrement c¿e?.

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