Patent ID: 7271133
Filing Date: 2007-09-18
Classification: C09K

Abstract:
1. A method of treating a subterranean formation penetrated by a well bore comprising: preparing or providing an aqueous treating fluid composition comprising water, a water soluble hydrophobically modified gelling agent polymer produced by grafting a low concentration of hydrophobic monomers onto a gelling agent polymer, a crosslinking agent, and an ionic surfactant having a hydrophobic chain portion associated with said hydrophobic monomers grafted onto said gelling agent polymer resulting in hydrophobically modified gelling agent polymer molecules having increased radiuses of gyration, wherein said ionic surfactant is present in said treating fluid composition in an amount in the range of from about 0.01% to about 0.025% by weight of said composition; and pumping said aqueous treating fluid composition into said subterranean formation.