Patent ID: 7316273

Claim:
A method for treating a subterranean formation penetrated by a wellbore, the method comprising the steps of: a. injecting a preflush treatment fluid into the subterranean formation through the wellbore, wherein the preflush treatment fluid comprises brine and a mutual solvent; b. forming a composition, wherein the composition comprises: i. a solvent consisting essentially of a water-soluble solvent selected from the group consisting of any solvent that is at least 25% by weight soluble in water and any mixture of two or more thereof in any proportion, wherein the solvent is from about 90% to about 99.9% by weight of the composition; and ii. a tackifying compound, wherein the tackifying compound is from about 0.01% to about 10% by weight of the composition; wherein the tackifying compound and the solvent are mutually selected such that, for the ratio of the tackifying compound to the solvent, the tackifying compound is soluble in the solvent; and c. introducing the composition through the wellbore into the subterranean formation.