Fracturing fluids and methods of making and using same

Details Fracturing fluids and methods of making and using same Fracturing fluids and methods of making and using same

C - Chemistry, Metallurgy

09

K

C09K 8/68 (2006.01) C09K 8/524 (2006.01) C09K 8/80 (2006.01) E21B 43/26 (2006.01)

Patent

CA 2451334

Fracturing fluid compositions and methods for their preparation and use are disclosed. The compositions are useful in the oil and gas drilling operations, as well as in gravel packing operations, water blocking, temporary plugging for purposes of wellbore isolation and/or fluid loss control, and other uses. The compositions comprise a liquid, a polymer soluble in the liquid, having a degree of substitution of ionic groups of about 0.01 to about 0.1; and a crosslinking agent capable of increasing the viscosity of the fracturing fluid by crosslinking the polymer in liquid.

L'invention concerne des compositions fluides de fracturation ainsi que leurs procédés de préparation et d'utilisation. Ces compositions sont utiles dans des opérations de forage pétrolier et gazier et dans des opérations de gravillonnage des crépines, de blocage de formation, d'obturation temporaire à des fins d'isolation de trou de forage et/ou de contrôle de perte de fluide, ainsi que dans d'autres applications. Lesdites compositions comprennent un liquide, un polymère soluble dans ce liquide présentant un degré de substitution de groupes ioniques compris entre environ 0,01 et environ 0,1, ainsi qu'un agent de réticulation permettant d'augmenter la viscosité du fluide de fracturation par réticulation du polymère dans le liquide.

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