Heavy-oil solution-gas drive for Hamaca field: Depletion studies and interpretations

A systematic study was made of the heavy-oil solution-gas-drive process in the Venezuelan Hamaca field. The goal was to acquire data for reservoir-simulation studies. The study included a series of rock- and fluid-property measurements and several carefully performed depletion experiments. Supplemental experiments with pressure/volume/temperature (PVT) cells and ideal porous media also were conducted to aid the analysis of the depletion experiments.