CPC C09K 8/487 (2013.01) [C04B 14/045 (2013.01); C04B 14/10 (2013.01); C04B 16/0675 (2013.01); C04B 28/04 (2013.01); C09K 8/506 (2013.01); C09K 8/518 (2013.01); E21B 33/138 (2013.01); C04B 2103/0085 (2013.01); C04B 2103/40 (2013.01); C04B 2103/46 (2013.01)] | 19 Claims |
1. A foamed treatment fluid comprising:
a cement;
a viscosifying agent;
a thixotropic additive;
a foaming surfactant;
a gas; and
water;
wherein the foaming surfactant comprises a polyethylene glycol alkyl ether (C6-C10), sulfate ammonium salt.
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