Hybrid approach to assisted history matching in large reservoirs

摘要

A method for hybrid assisted history matching, including: a) performing history matching by calculating a mismatch for multiple realizations of a geomodel representing a reservoir; b) selecting a production well from a group of production wells m the reservoir; c) generating one or more sample realizations for the geomodel by sampling one or more grid-cell physical properties along one or more streamline trajectories from one or more of the multiple realizations of the geomodel that meet a predetermined rank criteria, the one or more streamline trajectories connecting the selected production well with at least one of an injection well, an aquifer and a gas cap; d) updating one or more of the multiple realizations for the selected production well using the one or more sample realizations and a computer system; and e) repeating steps a)-d) for each production well in the group of production wells.