This paper describes the use of a dual porosity radial gas flow simulator for estimating values for the key parameters controlling gas production from the Devonian shale or similar unconventional resource. Using best estimates from the literature on shale fracture and matrix properties as a starting point, the model is used to history match production decline and cumulative production data from a Devonian shale well in Meigs County, Ohio. Three sets of parameters were obtained which gave good agreement with the production data. Utilizing simulated pressures at a distance of 96 feet (29.3 m) as a third matching parameter, it was possible to distinguish between the three cases and thus obtain a "more unique" match.

From the results obtained it is concluded that interference data can provide additional information needed for determining the key parameters that control shale well deliverability.

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