End-to-end neural network approach to 3D reservoir simulation and adaptation

• URL: http://arxiv.org/abs/2102.10304v1
• Date: Sat, 20 Feb 2021 10:03:45 GMT
• Title: End-to-end neural network approach to 3D reservoir simulation and adaptation
• Authors: E. Illarionov, P. Temirchev, D. Voloskov, R. Kostoev, M. Simonov, D. Pissarenko, D. Orlov and D. Koroteev
• Abstract summary: We present a unified approach to reservoir simulation and adaptation problems. A single neural network model allows a forward pass from initial geological parameters of the 3D reservoir model. We demonstrate that the suggested approach provides accurate reservoir simulation and history matching with a benefit of several orders of magnitude simulation speed-up.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Reservoir simulation and adaptation (also known as history matching) are typically considered as separate problems. While a set of models are aimed at the solution of the forward simulation problem assuming all initial geological parameters are known, the other set of models adjust geological parameters under the fixed forward simulation model to fit production data. This results in many difficulties for both reservoir engineers and developers of new efficient computation schemes. We present a unified approach to reservoir simulation and adaptation problems. A single neural network model allows a forward pass from initial geological parameters of the 3D reservoir model through dynamic state variables to well's production rates and backward gradient propagation to any model inputs and variables. The model fitting and geological parameters adaptation both become the optimization problem over specific parts of the same neural network model. Standard gradient-based optimization schemes can be used to find the optimal solution. Using real-world oilfield model and historical production rates we demonstrate that the suggested approach provides accurate reservoir simulation and history matching with a benefit of several orders of magnitude simulation speed-up.

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