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

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Saturation and pressure change estimation from time-lapse seismic data using vision transformers

Cirne, Marcos, Maleki, Masoud, Diniz, Michael, Schiozer, Denis, Davolio, Alessandra, Rocha, Anderson

Applied Soft Computing

Covariance scaling: Theory, extension, and applications to ensemble-based history matching

Ranazzi, Paulo Henrique, Luo, Xiaodong, Sampaio, Marcio A.

Computational Geosciences

Comparing Shallow and Deep Learning Regression Methods to Forecast Short-Term Oil, Water, and Gas Rates in a Pre-Salt Petroleum Field

Lavi, Bahram, Bertini Junior, João Roberto, Oliveira Pires, Luis, Schiozer, Denis José

Water, and Gas Rates in a Pre-Salt Petroleum Field

Fast Objective Function Estimator Based on Parametric Dynamic Mode Decomposition for Wag-Co2 Injection in Carbonate Reservoirs

Magalhaes de Oliveira, Isabela, Gildin, Eduardo, Schiozer, Denis

Implementation of Advanced Visualization Techniques for Evaluating Modeled Seismic Properties from Ensembles of Reservoir Models

Dragone, Israel, Miyazato, Mitsuo Luan, Rosa, Daine Rossi, de Melo Filho, Leonildes Soares, da Silva, Celmar Guimarães, Pilato, Marcos, de Campinas, Estadual, Pinto, Tahyz, Mesquita, Pedro Vianna

Efficient proxy for time-lapse seismic forward modeling using a U-net encoder–decoder approach

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

Computers & Geosciences

Investigation of Biases Caused by Model-Based Optimization Processes for Reservoir Management

Botechia, V. E., Oliveira, J. P., Santos, A. A. S., Schiozer, D. J.

The Impact of Asymmetric Loss Functions on Data-Driven Short-term Forecasting Approaches

Lavi, Bahram, Junior, João Roberto Bertini, Pires, Luis Oliveira, Schiozer, Denis José

The Importance of Wells Productivity and Injectivity Calibration in Short-Term Oil and Gas Reservoir Simulation Reliability

Pires, L., Schiozer, D.J.

Fifth EAGE Digitalization Conference & Exhibition

Design of a Low Carbon CO2-alternative-water Injection Processes Using a Machine-learning Assisted Multi-objectives Optimization Protocol

Shang, Wenlong, Sun, Qian, Li, Xiaobo, Wang, Ke, Ampomah, William

Energy

Impact of Production Strategy on Production Forecasting, Energy Demand, and Carbon Emissions: Typical Case Study of the Brazilian Presalt

Hohendorff Filho, João Carlos Von, Bannwart, A. C., Estevam, Valdir, Castro, Marcelo Souza, Schiozer, Denis José

Journal of Energy Resources Technology, Part B: Subsurface Energy and Carbon Capture

A visual tool to analyze the matching quality between simulation models and 4D seismic data

Rosa, Daiane Rossi, Da Silva, Celmar Guimarães, Da Silva Siqueira, Kleyton Rafael, De Andrade Miyazato, Mitsuo Luan, Dos Santos, Marcos Sebastião, Pilato, Marcos, Dragone, Israel, De Melo Filho, Leonildes Soares, Schiozer, Denis José, Davolio, Alessandra

4D Forum — Insight to Actions: A Global Forum, Galveston, Texas, November 4–6, 2024

Watch the Reservoir! Improving Short-Term Production Forecast Through Transformers

Werneck, R., Lusquino Filho, L. A., Lustosa, A., Loomba, A., Gonçalves, M. M., Esmin, A., Salavati, S., Morais, E., Mendes Junior, P. Ribeiro, Zampieri, M.

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

seismicdatasetsappliedtoacomplexpre-salt-like benchmarkcase

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

Journal of Geophysics and Engineering

Model-Based Petroleum Field Management in Three Stages: Life-Cycle, Short-Term, and Real-Time

Schiozer, D. J., Botechia, V. E., Pires, L. C. O.

Applying Digital Transformation in Oil and Gas Reservoir for Real-time Management, Control and Optimization

Pires, L., Schiozer, D.

EAGE Conference on Energy Excellence: Digital Twins and Predictive Analytics

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.

Brazilian Journal of Petroleum and Gas

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

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

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.

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

Geoenergy Science and Engineering

Esteves, Barbara F., de Oliveira, Fellipe C., Couto, Paulo, Lage, Paulo LC

Data-Driven Production Forecast for Oil and Gas Reservoirs–Advantages and Limitations

Oliveira Pires, Luis, Schiozer, Denis José

Available at SSRN 5396630