General Multi-Porosity simulation for fractured reservoir modeling
| Autor: | Yuhe Wang, Yang Cao, Masoud Alfi, Bicheng Yan, Cheng An, John Killough |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Computer science
business.industry 020209 energy MathematicsofComputing_NUMERICALANALYSIS Energy Engineering and Power Technology 02 engineering and technology Mechanics Geotechnical Engineering and Engineering Geology Transient flow Permeability (earth sciences) Reservoir simulation Fuel Technology 020401 chemical engineering 0202 electrical engineering electronic engineering information engineering Low permeability Reservoir modeling Geotechnical engineering 0204 chemical engineering Porosity business Subdivision |
| Zdroj: | Journal of Natural Gas Science and Engineering. 33:777-791 |
| ISSN: | 1875-5100 |
| DOI: | 10.1016/j.jngse.2016.06.016 |
| Popis: | In the area of fractured reservoir modeling, conventional Dual Porosity Models is challenged to flexibly simulate more than two porosity systems and it is also difficult to capture the transient fluid transfer between matrix and fracture. This work aims to solve those problems in fractured reservoir simulation. The newly introduced Multi-Porosity Model honors any number of porosity types with different properties, such as permeability, porosity and wettability thus achieving significant improvements over conventional Dual-Porosity Models. Arbitrary connections for intra-porosity flow and inter-porosity flow are incorporated into the design to allow for the convenient transformation between Multi-Porosity and Multi-Permeability formulations. The addition of a flexible subdivision in each porosity system has allowed us to characterize the transient flow for inter-porosity flow. Due to the low permeability in the matrix, transient flow between matrix and fracture dominates, and thus matrix spatial subdivision is necessary to accurately capture the dynamics. The formulation is designed to allow the proposed scheme to be generalized. To quantify the improvements available with the new formulation, several typical Multi-Porosity Models are compared with Fine-Grid Single-Porosity Models. Consistent results have been obtained with those similar cases from literature, and the robustness and efficiency of the model is validated. Besides, the extra matrix subdivision is proven to accurately capture the transient fluid transfer between matrix and fracture. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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