Embedded discrete fracture modeling for compositional reservoir simulation using corner-point grids
| Autor: | Kamy Sepehrnoori, Francisco Marcondes, Yifei Xu, Bruno Ramon Batista Fernandes |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Discrete fracture
Computer science Corner-point grid MathematicsofComputing_NUMERICALANALYSIS Embedded discrete fracture model Full-permeability tensor formulation 02 engineering and technology 010502 geochemistry & geophysics Geotechnical Engineering and Engineering Geology Discrete fracture model Grid 01 natural sciences Physics::Geophysics law.invention Computational science Reservoir simulation Fuel Technology 020401 chemical engineering law Water flooding Cartesian coordinate system 0204 chemical engineering Complex fractures 0105 earth and related environmental sciences |
| Zdroj: | Repositório Institucional da Universidade Federal do Ceará (UFC) Universidade Federal do Ceará (UFC) instacron:UFC |
| ISSN: | 0920-4105 |
| DOI: | 10.1016/j.petrol.2019.02.024 |
| Popis: | Corner-point is an industry-standard type grid for application in reservoir simulation. The flexible gridding in corner-point grids provides several advantages over Cartesian grids for the representation of complex geological features. In this work, an embedded discrete fracture model (EDFM) is extended to corner-point grids with a full-permeability-tensor formulation to simulate complex fractures in this type of grids. The developed model is implemented in an IMPEC, compositional reservoir simulator. We first describe the formulations of the full-permeability-tensor implementation together with the modified governing equations for EDFM simulations. Then, we present methodologies for computing matrix-fracture intersections and fracture-fracture connections in the EDFM considering the various block geometries in corner-point grids. Subsequently, case studies are presented to verify the developed model, where the impacts of grid distortion and cross derivatives on simulation results are discussed. Three-dimensional case studies are also shown to illustrate the influence of natural fractures on secondary recovery. The results of this study demonstrate the reliability of the developed model, and they also show the compatibility of the EDFM with different types of numerical solution schemes in existing simulators. |
| Databáze: | OpenAIRE |
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