Production data analysis for dual-porosity gas/liquid systems: A density-based approach

摘要

Production data analysis impacts assets value and financial decisions significantly. Naturally fractured reservoirs exist widely around the world. A common method to represent naturally fractured reservoirs is dual-porosity model. Intrinsic characteristics of dual-porosity systems and their unique rate-transient profile require models able to capture well behavior and to achieve production data analysis, which is a proven difficulty for dual-porosity gas system and not completely solved. Moreover, past studies on dual porosity systems assume constant bottom-hole pressure (BHP) or constant rate production, which impose significant constraint to production data analysis.