Viscosity and phase separation control additives for foaming...

Details Viscosity and phase separation control additives for foaming... Viscosity and phase separation control additives for foaming...

E - Fixed Constructions

21

B

E21B 43/22 (2006.01) B01F 17/12 (2006.01)

Patent

CA 2050627

ABSTRACT A foaming surfactant concentrate useful in enhanced oil recovery with improved stability and flowability. This concentrate comprises water, greater than 12 wt % of a C20-30 alkyl aromatic sulfonate component having an average molecular weight from about 460 to about 600, a mixture of organic additives comprising a viscosity-reducing hydrotrope and a dispersant comprising a nonionic surfactant, and optionally a polymeric nonionic surfactant. The amount of organic additives is less than 50 wt % of the weight of the C20-30 alkyl aromatic sulfonate.

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