Patent ID: 7775282

Claim:
A method of treat a subterranean formation penetrated by a wellbore, the method comprising: a. preparing an aqueous fluid comprising at least one water inert polymer, provided that no viscosifier is added to the aqueous fluid to substantially increase the fluid viscosity; b. injecting the aqueous fluid into the wellbore at a pressure equal to or greater than the formation's fracture initiation pressure and, c. thereafter injecting into the wellbore a proppant laden fluid at a pressure equal to or greater than the formation's fracture initiation pressure; wherein the water inert polymer forms a film on fracture faces, and the method further comprising degrading the film subsequent to injecting the proppant laden fluid and wherein the film is degraded with breaker, the breaker selected from the group consisting of delayed breakers, conventional oxidizers, oxidizers triggered by catalysts contained in the film, latent acids, or formation fluids.