Simulation of DNAPL migration and recovery in saturated porous media using a black oil simulator.

摘要

A need exists for simulators that can model the movement of dense nonaqueous phase liquids (DNAPLs). The objective of this study was to explore the usage of a powerful black oil simulator, namely ECLIPSE-100, to model DNAPL migration and recovery in saturated porous media. ECLIPSE was quantitatively validated against a waterflooding experiment of a DNAPL-saturated core reported in the literature. Results from ECLIPSE were also compared to published results from two other simulators.; ECLIPSE was then used to perform a parametric study. Sensitivities were performed on the calculation mode, the grid discretization, and the model size to investigate numerical artifacts. Sensitivities were also performed on DNAPL and porous media properties, well configurations and constraints to compare with expected behaviour. In addition, preliminary simulations into the effect of permeability barriers were conducted. Both primary and secondary recovery simulations were performed.