scholarly journals A multiscale mixed finite element method with oversampling for modeling flow in fractured reservoirs using discrete fracture model

2017 ◽  
Vol 323 ◽  
pp. 95-110 ◽  
Author(s):  
Qingfu Zhang ◽  
Zhaoqin Huang ◽  
Jun Yao ◽  
Yueying Wang ◽  
Yang Li
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Mixed Finite Element ◽  
Fractured Reservoirs ◽  
Mixed Finite Element Method ◽  
Fracture Model ◽  
Discrete Fracture Model ◽  
Discrete Fracture ◽  
Modeling Flow ◽  
Element Method

scholarly journals Simulation of counter-current imbibition in water-wet fractured reservoirs based on discrete-fracture model

Open Physics ◽  
2017 ◽  
Vol 15 (1) ◽  
pp. 536-543
Author(s):  
Yueying Wang ◽  
Jun Yao ◽  
Shuaishi Fu ◽  
Aimin Lv ◽  
Zhixue Sun ◽  
...  
Keyword(s):  
Mixed Finite Element ◽  
Fractured Reservoirs ◽  
Mixed Finite Element Method ◽  
Fractured Media ◽  
Fracture Model ◽  
Discrete Fracture Model ◽  
Matrix Block ◽  
Discrete Fracture ◽  
The Matrix ◽  
Counter Current

AbstractIsolated fractures usually exist in fractured media systems, where the capillary pressure in the fracture is lower than that of the matrix, causing the discrepancy in oil recoveries between fractured and non-fractured porous media. Experiments, analytical solutions and conventional simulation methods based on the continuum model approach are incompetent or insufficient in describing media containing isolated fractures. In this paper, the simulation of the counter-current imbibition in fractured media is based on the discrete-fracture model (DFM). The interlocking or arrangement of matrix and fracture system within the model resembles the traditional discrete fracture network model and the hybrid-mixed-finite-element method is employed to solve the associated equations. The Behbahani experimental data validates our simulation solution for consistency. The simulation results of the fractured media show that the isolated-fractures affect the imbibition in the matrix block. Moreover, the isolated fracture parameters such as fracture length and fracture location influence the trend of the recovery curves. Thus, the counter-current imbibition behavior of media with isolated fractures can be predicted using this method based on the discrete-fracture model.

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