This report discusses the documentation of AST methodologies applied by East OhioGas (EOG) to Clinton formation completions in the Stark-Summit storage field. These technologies include one point well test analysis, history matching of field-measured net pressures, fracture treatment optimization studies, reservoir simulation, and post-fracture evaluation. The Stark-Summit field, completed in the Clinton formation, was converted to storage in 1941. Throughout the 1950's and 60's a majority of wells were hydraulically fractured to increase deliverability. In an effort to maintain deliverability, EOG routinely re-stimulates approximately 20s well per year. By applying AST technologies, better methods were developed to pick restimulation candidates, and fracture design was optimized for the two study wells.
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