Permeability 3D view of UNISIM-IV
Permeability 3D view of UNISIM-IV

UNISIM-IV: Overview

UNISIM-IV is an open-source benchmark with geological and operational characteristics of Brazilian pre-salt fields, consisting of a light-oil carbonate reservoir with high CO2 content.

The benchmark is divided into four different cases (UNISIM-IV-2019, UNISIM-IV-2022, UNISIM-IV-2024, and UNISIM-IV-2026). The differences relate mainly to the stage of the field’s life cycle and period of production history.

The provided data include: (1) a set of prior uncertainties for probabilistic studies, (2) production, injection, and history data, and (3) a simulation model suggested as a base case or in nominal approaches.

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UNISIM-IV Publications


Performance assessment of an iterative ensemble smoother with local analysis to assimilate big 4D seismic datasets applied to a complex pre-salt-like benchmark case

Maschio, Célio, Silva Neto, Gilson Moura, Davolio, Alessandra, Rios, Vinicius de Souza, Schiozer, Denis José

Journal of Geophysics and Engineering

Efficient proxy for Time-Lapse Seismic ForwardModeling using U-Net Encoder-Decoder Approach

Diniz, Michael Macedo, Maleki, Masoud, Cirne, Marcos, Danaei, Shahram, Oliveira, João, Schiozer, Denis José, Davolio, Alessandra, Rocha, Anderson

Assessing the Value of in-Well Fiber Optics Deployment in Pre-Salt Projects for Real-Time Reservoir Monitoring

Ribeiro, P. M., Gildin, E., Emerick, A. A.

Assessing the effects of CO2/methane mixtures on gas- oil interfacial tension and fluid flow using compositional simulation

Dantas, Paulo HA, dos Santos, Ana LN, Lins, Igor ES, Costa, Gloria MN, Vieira de Melo, Silvio AB

Brazilian Journal of Chemical Engineering

A New Hybrid Data-Driven and Model-Based Methodology for Improved Short-Term Production Forecasting

Ferreira, Vitor Hugo de Sousa, Castro, Manuel, Moura, Renato, Werneck, Rafael de Oliveira, Zampieri, Marcelo Ferreira, Gonçalves, Maiara Moreira, Linares, Oscar, Salavati, Soroor, Lusquino Filho, Leopoldo Andre Dutra, Ribeiro Mendes Júnior, Pedro


Botechia, V. E., Correia, M. G., Rios, V. S., Davolio, A., Santos, S. M. G., Hohendorff Filho, J. C. V., Schiozer, D. J.

Brazilian Journal of Petroleum and Gas