UNISIM-IV-R: Model Description

The reference model is based on Sector 1 of UNISIM-III, with a grid resolution of 50 x 50 x 2 meters, with 170 x 157 x 595 blocks in ‘I’, ‘J’, and ‘K’ directions, respectively, totaling 15,880,550 blocks, from which 2,717,997 are active blocks, with about 4.7 billion std m3 of oil in place. The structural model consists of four surfaces and three faults. The fluid model considers a compositional approach and five pseudo-components for reservoir simulation, since this benchmark corresponds to light oil with high CO2 content and the recovery mechanism is WAG-CO2 injection. Further details can be found in the article UNISIM-IV: Benchmark proposal for light-oil carbonate reservoir with high CO2 content.


BOTECHIA, V.E., CORREIA, M.G., RIOS, V.S., DAVOLIO, A., SANTOS, S.M.G., HOHENDORFF FILHO, J.C.V., SCHIOZER, D.J., 2022. “UNISIM-IV: Benchmark Proposal For Light Oil Carbonate Reservoir With High CO2 Content”. Brazilian Journal of Petroleum and Gas, 16 (4): 149-160. https://doi.org/10.5419/bjpg2022-0012