Título: Numerical simulation of steam injection processe with solvent

Autor: Zerpa L.; Mendez, Z.

Evento: 6th UNITAR Heavy Crude & Tar Sands Int. Conf., 1, p. 715-721

Lugar y fecha del Evento: Houston, TX, Feb. 12-17

Descriptores: Steam Injection; Distillate; Enhanced Recovery; Hydrocarbon Solvent; Miscible Displacement; Oil Recovery; Solvent; Steam; Thermal Recovery; Viscous Oil Recovery; Water; Water Vapor

Año: 1995

País de publicación: United States

Tipo de documento: Conferencia

Resumen

In Venezuela, gas oil has been evaluated as an additive to increase steam injection process efficiency. The results of laboratory and field tests have shown a significant improvement in the production behavior. Despite these experiences, it is necessary to complement the information with results obtained from numerical simulation studies in order to know injection parameter effects, such as gas oil concentration, schemes and rates of injection, temperatures, etc., and also some mechanisms involved in the process. In this work, the results achieved in the numerical simulation of displacement tests with steam and gas oil are presented. A fully implicit 2-D thermal, 3-phase compositional simulator was used to obtain all the data presented in this paper. The numerical simulation results show a similar oil production performance to those obtained in the displacement tests with injection of gas oil and steam simultaneously. It was determined that the gas oil light fraction volatilization contributes to the process improvement. In general, these results confirm the benefit of using solvent and contribute to the understanding of process mechanisms.