METHOD AND SYSTEM FOR INTEGRATED RESERVOIR AND SURFACE FACILITY NETWORKS SIMULATIONS

摘要

Integrated surface-subsurface modeling has been shown to have a critical impact on field development and optimization. Integrated models are often necessary to analyze properly the pressure interaction between a reservoir a nd a constrained surface facility network, or to predict the behavior of severa l fields, which may have different fluid compositions, sharing a common surfac e facility. The latter is gaining a tremendous significance in recent deepwate r field development. These applications require an integrated solution with th e following capabilities: * to balance a surface network model with a reservoi r simulation model in a robust and efficient manner. * To couple multiple reservoir models, production and injection networks, synchronising their advancement through time. * To allow the reservoir and surface network model s to use their own independent fluid descriptions (black oil or compositional descriptions with differing sets of pseudo-components). * To apply global production and injection constraints to the coupled system (including the transfer of re-injection fluids between reservoirs). In this paper we descri be a general-purpose multi-platform reservoir and network coupling controller having all the above features. The controller communicates with a selection of reservoir simulators and surface network simulators via an open message- passing interface. It manages the balancing of the reservoirs and surface networks, and synchronizes their advancement through time. The controller al so applies the global production and injection constraints, and converts the hydrocarbon fluid streams between the different sets of pseudo-components us ed in the simulation models. The controller's coupling and synchronization algorithms are described, and example applications are provided. The flexibility of the controller's open interface makes it possible to plug in further modules (to perform optimization, for example) and additional simulators.