Oil well fracturing fluids and methods

Details Oil well fracturing fluids and methods Oil well fracturing fluids and methods

C - Chemistry, Metallurgy

09

K

C09K 8/70 (2006.01) C09K 8/68 (2006.01) E21B 43/26 (2006.01)

Patent

CA 2667321

Additives useful in attenuating the crosslinking time of sparingly soluble borate-based minerals and the use of those additives in oil well fracturing fluids and methods of fracturing a formation are described wherein the wellbore fracturing fluid comprises a viscosifying polysaccharide, a sparingly soluble borate-based mineral and a metal sequestering agent.

Cette invention porte sur des additifs utiles dans l'atténuation du temps de réticulation de minéraux de borate modérément solubles et sur l'utilisation de ces additifs dans des boues et procédés de fracturation de puits de pétrole.

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