Patent ID: 7552771
Filing Date: 2009-06-30
Classification: C09K

Abstract:
1. A method of treating a subterranean formation such that initiation of gas production is enhanced following the treatment, comprising: introducing a relative-permeability modifier into the subterranean formation such that the relative-permeability modifier reduces permeability of the subterranean formation to aqueous fluids, wherein the relative-permeability modifier comprises a water-soluble polymer; and introducing a water-drainage-rate-enhancing agent into the subterranean formation, wherein the water-drainage-rate-enhancing agent comprises at least one compound selected from the group consisting of: wherein R 6 is an alcohol, phenol or phenol derivative or a fatty acid comprising about 12 to about 22 carbons, EO is an ethylene oxide radical, p is 1 to 20, PrO is a propylene oxide radical, q is 0 to 15, BuO is a butylene oxide radical, and r is 0 to 15; an organic polyethylene carbonate having the structure shown below: wherein R7 is an alcohol comprising from about 7 to about 16 carbons and s is 7 to 16; a butoxylated glycol comprising 1 to 15 butylene oxide groups; and an ethoxylated-butoxylated glycol comprising 1 to 5 ethylene oxide groups and 5 to 10 butylene oxide group; and any combination thereof.