Consideração das incertezas na caracterização de reservatorios utilizando ajuste de historico e simulação estocastica

AUTOR(ES)
DATA DE PUBLICAÇÃO

1996

RESUMO

The integration analysis between geology and engineering is also obtained with the methodology used in this work which applies stochastic and flow simulation to improve reservoir characterization. Variograms, kriging and stochastic simulation are made for horiontal and vertical permeability. Grid simulation used in geostatistics analysis is kept in flow simulation, avoiding scaling-up problems. This is possible because the analysis is done in only one well and its drainage area. A tridimensional variographic analysis, modeled with a sin-cardinal func-tion, and sequential Gaussian simulation are used to fit heterogeneity and continuity of horizontal and vertical permeability. Ali generated images are used and selected using stochastic images generation. A minimization of an objective function, which represents mathematically the quality of history matching obtained, is used for image selection and methodologies comparison. Production fórecast uncertainties are also obtained. Paralleli-zation of flow simulations is used to reduce the total time of the processo

ASSUNTO(S)

engenharia de reservatorio de oleo analise estocastica metodo de simulação

ACESSO AO ARTIGO

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