Evaluating stimulation effectiveness in unconventional gas reservoirs

The full-length paper presents production- evaluation criteria that can be used to compare the overall stimulation effectiveness in unconventional gas reservoirs. Characterizing the "relative" conductivity of the fracture network and primary fracture is critical to evaluating stimulation performance. Because of the uncertainty in matrix permeability and network-fracture spacing (i.e., complexity), it is difficult to find unique solutions when modeling production data in unconventional gas reservoirs. However, it may be sufficient to identify qualitative behaviors that can distinguish between key production mechanisms. Copyright 2010 Offshore Technology Conference. Reproduced by permission.