Analise de testes em reservatorios com variação vertical de permeabilidade

AUTOR(ES)
DATA DE PUBLICAÇÃO

1991

RESUMO

Due to variations in the environment in which sediments were deposited and the diagenetics process that sediments were submited in their evolution, it is very common to find reservoirs which typically show a vertical variation of permeability. The purpose of this work is to investigate pressure and rate transient behavior in such reservoirs, in order to provide a method for characterization of the reservoir parameters through well test analysis. Three kind of reservoirs are considered in this work: . reservoirs with continuous vertical variation of permeability, multilayer reservoirs without formation crossflow, and . multilayer reservoirs with formation crossflow. The continuous vertical variation of permeability case is treated as a special case of multilayer reservoir with fórmation crossflow. Matematical solutions for the two basic model are presented and the influence of several reservoir parameters on the pressure and rate behavior are discussed. Methods for nonlinear parameter estimation in well test analysis are also discussed

ASSUNTO(S)

petroleo - reservas campos petroliferos

Documentos Relacionados