This paper presents an integrated approach for evaluating the post-fracture performance of gas wells completed in tight gas sands. Our technique focuses on a methodology for evaluating the stimulation effectiveness of hydraulically fractured gas wells. Rather than relying on a single evaluation technique, we integrate short-term pressure buildup testing with long-term production data analysis using decline type curves. We illustrate the applicability and efficacy of our technique with examples from more than twenty wells completed in tight gas sands. The results of our paper also demonstrate the value and function of short-term pressure buildup tests performed in tight gas sands.
Keywords:drillstem testing, type curve, fractured well, pseudopressure function, production data, pressure transient testing, drillstem/well testing, permeability, decline type curve analysis, hydraulic fracturing
Copyright 2003, Society of Petroleum Engineers