Simulação numérica de escoamentos não-isotérmicos em reservatórios de óleo empregando um coprocessador e a API OpenMP

Abstract

The numerical simulation of the flow in oil reservoirs has become, over decades, a standard tool applied by the oil and gas industry to forecast the behavior of a hydrocarbon producing field. In order to reduce the computational effort of these simulations, which in general demand more time as the case studied becomes more realistic, high performance computing techniques have also been applied in reservoir simulation. In this context, this thesis has as a contribution the proposal of a strategy for the numerical simulation of non-isothermal flow in oil reservoirs using an operator splitting, the OpenMP API, a coprocessor and an one-equation model for temperature without the need to consider local thermal equilibrium. Throughout the development of this thesis, non-isothermal flow modeling in porous media, the finite difference method for discretization and a linearization of the nonlinear algebraic equations by Picard’s method were used. The effects of varying the number of threads and the computational grid were studied, and speedups greater than 25 were obtained in some cases tested.