A Coupled Reservoir and Geomechanical Simulation System
Интегрированная система моделирования пласта и геомеханики
1998-09-01
SCID: 54.1/g82kgqsn
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coupled reservoir simulationfracture-propagation modelgeomechanical simulationmultiphase flow and heat transfer
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Abstract (AI)
Summary Current simulation models do not account for the interactions among the geomechanical behavior, formation fracturing and multiphase flow, and heat transfer in porous media. This paper describes a method for modular coupling of a commercial reservoir simulator with a three-dimensional (3D) stress code and fracture-propagation model. The iteratively coupled system is equivalent to a fully coupled solution of flow and stress. The iterative method is very robust. An experience with acceleration of the iteration is described, and the utility of the method is demonstrated on examples. The comparison with an uncoupled solution shows that significantly different (and more realistic) answers are obtained with the coupled modeling. The current limitations and future work are also discussed.
Key Findings
1
Coupled modeling produces significantly different and more realistic results compared with uncoupled solutions.
2
Developed a modular method to couple a commercial reservoir simulator with a 3D stress code and fracture-propagation model enabling integrated simulation of flow, stress, fracturing, and heat transfer.
3
The iterative coupling method is very robust and includes an acceleration strategy to speed convergence.
4
The iteratively coupled system is mathematically equivalent to a fully coupled solution of flow and stress, ensuring consistency between modules.
5
The paper identifies current limitations of the coupled system and outlines directions for future work.
Research Object
Coupled reservoir and geomechanical simulation system (commercial reservoir simulator coupled with 3D stress code and fracture-propagation model)
Research Subject
Interactions among multiphase flow, heat transfer, formation fracturing, and geomechanical behavior in porous media as captured by an iteratively coupled flow-and-stress simulation (robustness, accelerated iteration, and differences versus uncoupled solutions)
Publication Details
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1998-09-01
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