A Modified Embedded Discrete Fracture Model to Improve the Simulation Accuracy During Early-Time Production of Multi-Stage Fractured Horizontal Well

2019 ◽  
Author(s):  
Xiang Rao ◽  
Linsong Cheng ◽  
Renyi Cao ◽  
Pin Jia ◽  
Peng Dong ◽  
...  
Keyword(s):  
Horizontal Well ◽  
Early Time ◽  
Fracture Model ◽  
Simulation Accuracy ◽  
Time Production ◽  
Discrete Fracture Model ◽  
Multi Stage ◽  
Fractured Horizontal Well ◽  
Discrete Fracture

scholarly journals An Integrally Embedded Discrete Fracture Model with a Semi-Analytic Transmissibility Calculation Method

Energies ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 3491 ◽  
Author(s):  
Renjie Shao ◽  
Yuan Di
Keyword(s):  
Calculation Method ◽  
Numerical Models ◽  
Fractured Reservoirs ◽  
Field Studies ◽  
Fracture Model ◽  
Seismic Survey ◽  
Real Field ◽  
Simulation Accuracy ◽  
Discrete Fracture Model ◽  
Discrete Fracture

The embedded discrete fracture model (EDFM) combines the advantages of previous numerical models for fractured reservoirs, achieving a good balance between calculation cost and simulation accuracy. In this work, an integrally embedded discrete fracture model (iEDFM) is introduced to further improve the simulation accuracy and expand the application of the model. The iEDFM has a new gridding method that can arbitrarily grid the fractures according to the requirements rather than finely subdividing fracture elements. Then, with a more precise pressure distribution assumption inside the matrix blocks, we are able to obtain a semi-analytic calculation method of matrix-fracture transmissibility applied to iEDFM. Several case studies were conducted to demonstrate the advantage of iEDFM and its applicability for intersecting and nonplanar fractured reservoirs, and a 3D case with a modified dataset from a reported seismic survey could be used to demonstrate the potential application of the iEDFM in real field studies.

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