Enhancement of deliverability has always been a top priority for storage field operators. Historically, all available enhancement techniques have been tried, with varying and occasionally negative results. The recent and rapid development of horizontal drilling technologies has given storage operators another method for consideration.

There are several geological and reservoir engineering aspects in evaluating a potential horizontal storage well project. If favorable conditions exist, a multidisciplinary approach is needed for the design and implementation of a successful project. This paper discusses the methodology and results of a successful horizontal storage well project conducted jointly by Oklahoma Natural Gas Company ("ONG") and the Gas Research Institute ("GRI").

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