Patent ID: 7971647
Filing Date: 2011-07-05
Classification: E21B

Abstract:
1. A method of increasing a gas production rate from a well having a lower well region, said well having a casing therein comprising a perforated casing section located above said lower well region, said casing extending from a wellhead, and said method comprising the steps of: (a) installing a tubing assembly in said well wherein (b) raising said liquid from said lower portion of said upper section of said casing to said wellhead using a lifting device which moves downwardly and upwardly in said upper section of said casing, said lifting device having at least one sealing element which contacts said interior wall of said casing as said lifting device moves upwardly in said upper section of said casing to raise said liquid; and (c) recovering said gas at said wellhead whereby said gas production rate from said well is increased.