Impacto da modelagem estocastica no processo de caracterização de reservatorios maduros / Impact of the stochastic modeling on mature reservoirs characterization process

AUTOR(ES)
DATA DE PUBLICAÇÃO

2005

RESUMO

A consistent geologic modeling is necessary to evaluate the petroleum reservoirs. In mature field, a large amount of remaining oil exists and, many times, with good capacity of being recovered. For this, geostatistical techniques are used for construction of solid models that allow to locate and to quantify this remaining oil. In a reservoir characterization study, the lithologic modeling is an essential stage because it will be the basis to the petrophysical properties modeling. This thesis proposes evaluate the proportionate impact for the algorithms of stochastic simulation (sequential indicator simulation, truncated gaussian simulation and plurigaussian simulation) in the reservoirs characterization, more specifically, in the volume of reservoir facies. The study passed through the handling data stage, with the upscaling process, until the connectivity study ofthe reservoir facies with the Hoshen-Kopelman algorithm. As results, it was possible to note that the plurigaussian simulation algorithm presented better capacity to reproduce the initial reservoir characteristics because it respect the lithofacies proportion, proportion matrix and the lithotype rule, different of sequential indicator simulation algorithm that takes in consideration only the facies proportion, equally distributed for all reservoir zones. It was still observed that the truncated gaussian simulation algorithm, in the way that it was implemented in the used software, wouldn t bring suitable results with the analyzed data

ASSUNTO(S)

geoestatistica simulation methods geoestatistical geological modeling reservatorios modelagem geologica reservoirs metodos de simulação

ACESSO AO ARTIGO

Documentos Relacionados