Patent ID: 9683165
Date: 2017-06-20
CPC Classifications: C09K,E21B

Claim:
1. A method, comprising: injecting a gas composition into one or more wellbores spatially separated from a target wellbore, wherein each of the one or more wellbores and target wellbore is at least partly contained within a subterranean formation, wherein the gas composition is injected, at an injected pressure, into each of the one or more wellbores, wherein the injected gas composition occupies a portion of the subterranean formation surrounding the one or more wellbores; maintaining the gas composition in the one or more wellbores at a pressure below a fracture gradient of the subterranean formation; and during the maintaining step, injecting a fracturing liquid into the target wellbore at a sufficient pressure above the fracture gradient to fracture a target portion of the subterranean formation surrounding the target wellbore, wherein the gas composition substantially prevents the fracturing liquid from entering the one or more wellbores during fracturing of the target portion of the subterranean formation.