A Discrete Fracture Modeling Approach for Analysis of Coalbed Methane and Water Flow in a Fractured Coal Reservoir
Joint Authors
Yang, Rui
Liu, Weiqun
Ma, Tianran
Xu, Hao
Fu, Xuehai
Guo, Chaobin
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-06-25
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
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.
American Psychological Association (APA)
Ma, Tianran& Xu, Hao& Guo, Chaobin& Fu, Xuehai& Liu, Weiqun& Yang, Rui. 2020. A Discrete Fracture Modeling Approach for Analysis of Coalbed Methane and Water Flow in a Fractured Coal Reservoir. Geofluids،Vol. 2020, no. 2020, pp.1-15.
https://search.emarefa.net/detail/BIM-1165880
Modern Language Association (MLA)
Ma, Tianran…[et al.]. A Discrete Fracture Modeling Approach for Analysis of Coalbed Methane and Water Flow in a Fractured Coal Reservoir. Geofluids No. 2020 (2020), pp.1-15.
https://search.emarefa.net/detail/BIM-1165880
American Medical Association (AMA)
Ma, Tianran& Xu, Hao& Guo, Chaobin& Fu, Xuehai& Liu, Weiqun& Yang, Rui. A Discrete Fracture Modeling Approach for Analysis of Coalbed Methane and Water Flow in a Fractured Coal Reservoir. Geofluids. 2020. Vol. 2020, no. 2020, pp.1-15.
https://search.emarefa.net/detail/BIM-1165880
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1165880