Avaliação do acoplamento explícito entre simulação de reservatório e sistema de produção / Evaluation of explicit coupling between reservoir simulator and production facilities system

AUTOR(ES)
FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

03/05/2012

RESUMO

Various methodologies to model the coupling of reservoirs and production systems have been applied in the oil industry in recent years due to the need to model properly the integrated solution of models that represent the flow of fluids through the reservoir to the surface. These methodologies are used to forecast production of multiple reservoirs, sharing production facilities with limited capacities ruled by complex systems. They can be grouped into two basic types: implicit and explicit coupling methodologies. Explicit methodology can be an efficient choice to integrate simulations because it allows coupling adequate simulators to model the whole system and also to add flexibility to study well management alternatives. A validation study of explicit coupling methodology is presented in this work where the production system is tested on common operating conditions during production and injection of fluids, verifying benefits and limitations of the methodology. Some methods for improving the explicit response are proposed and evaluated. An example of application verifies the gain of flexibility in well prioritization by the group management obtained by use of an external methodology for reservoir simulator. The explicit coupling, as implemented, even with some problems related to instability of numerical solution in specific situations, has shown a satisfactory result for the integration between the simulators, honoring operating constraints. Some analyses about elapsed time of coupling simulation are shown.

ASSUNTO(S)

reservatórios reservoir

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