Pore level investigation of steam injection processes; visualization of oil entrapment and steam propagation
| Autor: | Apostolos Kantzas, Arash Behrang, Sahand Etemad, Peyman Mohammadmoradi |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Physics
Work (thermodynamics) 020209 energy Condensation Steam injection Mechanical engineering 02 engineering and technology Mechanics Solver Geotechnical Engineering and Engineering Geology Physics::Fluid Dynamics Fuel Technology 020401 chemical engineering 0202 electrical engineering electronic engineering information engineering Volume of fluid method Heat equation 0204 chemical engineering Conservation of mass Displacement (fluid) |
| Zdroj: | Journal of Petroleum Science and Engineering. 158:603-615 |
| ISSN: | 0920-4105 |
| DOI: | 10.1016/j.petrol.2017.08.057 |
| Popis: | The objective of this work is to model the steam injection process and examine the displacement physics at the grain-level. The primary focus is to quantify the oil entrapment behind the swept zone and investigate the pore-level steam propagation and chamber growth. A digital two-dimensional micro-model is reconstructed and fed into a finite element VOF-based solver. The solver is developed by adding necessary source terms to the Navier Stokes equation. The phase change is simulated using the Lee phase change model assuming that mass is transferred in a constant pressure and a quasi-thermo-equilibrium state. For each phase in the multi-region model, the mass conservation, Navier-Stokes momentum, and energy equations under non-isothermal conditions are solved simultaneously. In post-processing results, steam chamber development, vapor condensation over the oil-steam interface, and oil viscosity reduction due to the heat diffusion are demonstrated properly. The simulated oil entrapment behind the swept zone as well as the temperature distribution throughout the medium are in good agreement with the experimental datasets. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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