Gas storage reservoirs are used worldwide to store produced natural gas during periods of low demand for use during periods of high demand. These formations are often depleted natural gas reservoirs. Proper selection of a gas storage reservoir is important to allow proper and economic operation of the project on a long-term basis. This paper describes issues which need to be taken into consideration from a reservoir perspective when considering the development of a gas storage reservoir. These issues include the proper containment of the injected gas, maintaining injectivity and productivity over long-term operations, and problems which may be associated with the presence of free water or hydrocarbons in the storage reservoir (both mobile and immobile) as well as formation damage issues that often surround the drilling and completion of new wells in the gas storage reservoirs for development purposes.

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