Abstract: A method includes initiating a first reservoir simulation on a first simulator for a first set of physical parameters of a first reservoir. The first reservoir simulator uses a first set of components for a compositional reservoir model. A second reservoir simulation is initiated on a second simulator. A network simulation is initiated on a network simulator to model a network for coupling the first reservoir and the second reservoir to a surface facility. The network simulator uses a second set of components for a compositional network model. The method further includes translating each of a first hydrocarbon fluid stream of the first reservoir simulator and a second hydrocarbon fluid stream of the second reservoir simulator to a common fluid model. Further, network balancing is initiated among the simulators at a corresponding point in each controller time step.

Abstract: 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 and a constrained surface facility network, or to predict the behavior of several fields, which may have different fluid compositions, sharing a common surface facility. The latter is gaining a tremendous significance in recent deepwater field development. These applications require an integrated solution with the following capabilities: * to balance a surface network model with a reservoir 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 models to use their own independent fluid descriptions (black oil or compositional descriptions with differing sets of pseudo-components).