Discrete fracture matrix modelling of fully-coupled CO2 flow – Deformation processes in fractured coal

2021 ◽  
Vol 138 ◽  
pp. 104644
Author(s):  
K.H.S.M. Sampath ◽  
M.S.A. Perera ◽  
D. Elsworth ◽  
S.K. Matthai ◽  
P.G. Ranjith ◽  
...  
Keyword(s):  
Discrete Fracture ◽  
Deformation Processes ◽  
Matrix Modelling ◽  
Flow Deformation ◽  
Fractured Coal ◽  
Co2 Flow ◽  
Fully Coupled

scholarly journals A Discrete Fracture Modeling Approach for Analysis of Coalbed Methane and Water Flow in a Fractured Coal Reservoir

Geofluids ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Tianran Ma ◽  
Hao Xu ◽  
Chaobin Guo ◽  
Xuehai Fu ◽  
Weiqun Liu ◽  
...  
Keyword(s):  
Water Flow ◽  
Coalbed Methane ◽  
Fluid Transport ◽  
Fracture Model ◽  
Phase Flow ◽  
Two Phase ◽  
Discrete Fracture Model ◽  
Discrete Fracture ◽  
Fractured Coal ◽  
Cbm Production

As a complex two-phase flow in naturally fractured coal formations, the prediction and analysis of CBM production remain challenging. This study presents a discrete fracture approach to modeling coalbed methane (CBM) and water flow in fractured coal reservoirs, particularly the influence of fracture orientation, fracture density, gravity, and fracture skeleton on fluid transport. The discrete fracture model is first verified by two water-flooding cases with multi- and single-fracture configurations. The verified model is then used to simulate CBM production from a discrete fractured reservoir using four different fracture patterns. The results indicate that fluid behavior is significantly affected by orientation, density, and fracture connectivity. Finally, several cases are performed to investigate the influence of gravity and fracture skeleton. The simulation results show that gas migrates upwards to the top reservoir during fluid extraction owing to buoyancy and the connected fracture skeleton plays a dominant role in fluid transport and methane production efficiency. Overall, the developed discrete fracture model provides a powerful tool to study two-phase flow in fractured coal reservoirs.

Investigations of heat extraction for water and CO2 flow based on the rough-walled discrete fracture network

Energy ◽  
2019 ◽  
Vol 189 ◽  
pp. 116184 ◽  
Author(s):  
Jiawei Li ◽  
Zhixue Sun ◽  
Yin Zhang ◽  
Chuanyin Jiang ◽  
Claudia Cherubini ◽  
...  
Keyword(s):  
Fracture Network ◽  
Discrete Fracture Network ◽  
Heat Extraction ◽  
Discrete Fracture ◽  
Co2 Flow

Well-data-based discrete fracture and matrix modelling and flow-based upscaling of multilayer carbonate reservoir horizons

2017 ◽  
Vol 459 (1) ◽  
pp. 191-210 ◽  
Author(s):  
Caroline Milliotte ◽  
Sima Jonoud ◽  
Ole Petter Wennberg ◽  
Stephan K. Matthäi ◽  
Alexandra Jurkiw ◽  
...  
Keyword(s):  
Carbonate Reservoir ◽  
Discrete Fracture ◽  
Matrix Modelling ◽  
Well Data
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