Abstract
Sealing faults, which cut formations with or without contrasting rock properties, have a profound impact on transient pressure behavior of nearby wells. New analytical solutions with wellbore storage and skin effects are presented for the interpretation of the wellbore pressure with and without wellbore flow rate (measured simultaneously with the pressure) for well located at a distance from a single fault. In the absence of measured downhole flow rate, both constant wellbore storage and exponential decline flow rate models are considered in this work. These new solutions offer a potential for the estimation of permeability, skin, and wellbore storage coefficient. Additionally, the well-to-fault distance can also be estimated. Application of the new solutions, using the logarithmic convolution, deconvolution, and nonlinear least-squares estimation methods, is demonstrated through examples.
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