Numerical Well Test Modelling in a Full-Field Simulator Offers New Opportunities for Reservoir Characterization

Numerical models for the simulation of well tests have effectively been limited to single well models owing to the small grid size and time step needed. This paper introduces well test simulation in full-field scale models. This allows better reservoir characterisation and improved history matching by screening of possible reservoir geological realisations through matching of measured test data. The concepts of windows and dual time steps as implemented for well test simulation are explained in this paper.