Using differential evolution for compositional history-matching of a tight gas condensate well in the Montney Formation in western Canada

摘要

Production data analysis for low-permeability unconventional reservoirs is a challenging task, particularly for cases where multi-phase flow occurs within the reservoir. Analytical models developed to account for multi-phase flow typically require calculation of pseudo variables, which in turn require knowledge of relative permeability and fluid data. In the presence of sparse sampling, the analytical models often do not provide satisfactory results when there are so many unknown parameters. In such situations, numerical models are better suited, using a history matching framework to assist with reservoir and fluid characterization.