Analysis of pressure data immediately subsequent to a fracturing stimulation treatment gives indications of the fracture length and representative conductivity. A comparison of these post-treatment values allows corrections to be incorpora ed into treatment design studies and thus improves design optimization.

As a first step, the calculations of fracture length and conductivity using two case histories of wells fracture stimulated are included in this study. Some analysis considerations for designing or evaluating post-frac test are also included.

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