This paper discusses the results of a study that was made to determine if surface pressure fall-off data existing after a fracture treatment could be correlated to reservoir flow capacity. The theoretical aspects of pressure dissipation away from the fracture during and after the treatment are considered, and a method is proposed to calculate reservoir flow capacity from these data. This method is an adaptation of the procedure used for estimating reservoir injective capacity in water infection wells. Field data from five fracture treatments are presented, and calculated flow capacities are compared with existing knowledge of reservoir flow capacity in the particular fields. It was concluded that analysis of fracture treatment pressure fall-off data may be useful in determining reservoir flow capacity. Analysis of these data may also be helpful in evaluating the results of fracture treatments.

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