CPC C09K 8/584 (2013.01) [E21B 43/16 (2013.01); E21B 43/27 (2020.05); C09K 2208/30 (2013.01)] | 9 Claims |
1. A wellbore fluid, comprising:
a first surfactant having a structure represented by Formula (I):
wherein Y1, Y2, Y3, Y4 are each, independently, a sulfonate, a carboxylate, an ester or a hydroxyl group, m is an integer ranging from 2 to 3, and n, o, and k are each, independently, integers ranging from 2 to 10;
a second surfactant having a structure represented by Formula (III):
wherein R2 is a C15-C27 hydrocarbon group or a C15-C29 substituted hydrocarbon group, R3 is a C1-C10 hydrocarbon group, and p and q are each, independently, an integer ranging from 1 to 4;
an activator; and
an aqueous base fluid.
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