Patent ID: 7998909
Filing Date: 2011-08-16
Classification: C09K

Abstract:
1. A wellbore treatment fluid comprising an aqueous medium, a gas component, a viscosifying agent, and a surfactant, wherein the surfactant is represented by the chemical formula: wherein R is a linear alkyl, branched alkyl, alkyl cycloaliphatic, or alkyl aryl group; O is an oxygen atom; Y is either a sulfur or phosphorus atom; m is 1 or more; n is an integer ranging from 1 to 3; p is an integer ranging from 1 to 4; q is an integer ranging from 0 to 1; and X is a wherein the surfactant is comprised of a mixture of sodium dodecyl ether sulfate and sodium tetradecyl ether sulfate, as represented by the following structures: wherein m ranges from 1 to about 6.