Casing-conveyed perforating improves tight gas sand economics

A casing-conveyed perforating and integral flapper valve system proved effective in developing stacked pay Beluga sands in the Kenai gas field in Alaska's Cook inlet.This well completion method consists of perforating guns mounted outside the casing and integral valves in the casing for isolating zones during stimulation treatments.An exhaustive characterization study selected this perforating technique in an effort to improve life-of-well economics and total hydrocarbon recovery from this multiple sand environment.Beluga sandsFrom 1995 to 1998, geoscientists, petrologists, and reservoir engineers undertook an exhaustive reservoir characterization of the Beluga formation in the Kenai ...

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