基于模拟有限差分的嵌入式离散裂缝数学模型
摘要
The meshing of embeded discrete fracture model (EDFM) dose not need to conside the distribution pattern of fractures. It only needs to partition grid for matrix, so it can reduce the complexity of meshing and improve the computational efficiency. The embeded discrete fracture model can combine the mature reservoir simulation technology and the discrete fracture network model. It can simulate the flow of fluid in fractured reservoir accurately. We use mimetic finite difference (MFD) method to solve the model because of its local conservativeness and applicability of complex grids. The embeded discrete fracture model can deal with permeability tensor and be used to simulate fractured reservoir with complex boundary shape. Lastly, we have proven the validity and superiority of this method with some actual examples.