Viscoelastic surfactant based foam fluids

B - Operations – Transporting – 01 – J

Patent

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Details

B01J 13/00 (2006.01) A62D 1/02 (2006.01) B01F 17/00 (2006.01) C09K 3/00 (2006.01) C09K 8/70 (2006.01) E21B 43/267 (2006.01)

Patent

CA 2148583

A foam-fluid composition for use in foam fracture applications and foam slurry transport comprises a thickening amount of a viscoelastic surfactant composition, a functionally effective amount of a surfactant composition capable of forming a foam, and an aqueous liquid. Foam-fluid formulations are easily prepared, reusable, shear stable, easily pumped and form stable foams over a wide temperature range and exhibit high viscosities even at relatively high temperatures.

Composition mousse-fluide destinée à être utilisée dans des applications de fracturation et de transport de boues à l'aide de mousse, comprenant une quantité épaississante d'un agent tensioactif viscoélastique, une quantité fonctionnellement efficace d'un agent tensioactif pouvant produire une mousse, et un liquide aqueux. Ces compositions mousse-fluide se préparent facilement, peuvent être réutilsées, sont stables au cisaillement, sont pompées aisément, forment des mousses stables dans une large gamme de températures et présentent des viscosités élevées même à des températures relativement élevées.

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