Integration of Production Analysis and Rate-Time Analysis via Parametric Correlations -- Theoretical Considerations and Practical Applications

摘要: Well performance analysis in unconventional reservoirs is a challenging task because of the non-uniqueness associated with estimating well/formation properties. In addition, estimation reserves often uncertain due to very long transient flow periods. Recently, new semi-empirical rate-time relations (Ilk et al. 2008 and 2010) have been shown properly model behavior for wells reservoirs. The success these has led us focus on finding theoretical empirical relationships between parameters This work attempts integrate model-based production (i.e., semi-analytical/analytical solutions) by using parametric correlations. We perform various tight gas shale wells, then correlate from equations properties estimated full (model-based) data analysis. demonstrate application proposed methodology sample producing can show that integration via correlations highly-dependent size number wells) quality. When high-quality ample are available, formation permeability fracture half-length well-correlated relations.