10.57647/j.ijes.2025.1702.10

Numerical analysis of fluid flow behavior in micro fracture of coal matrix

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  • Harinandan Kumar*1,
  • Nirlipta Priyadarshini Nayak1,
  • Rose Havilah Pulla2,
  • Betty Joseph1,
  • Amrutha Ashok1,
  • Devika Lal Karukayil Manilal1,
  1. Department of Petroleum Engineering and Earth Sciences (Energy Cluster) (SOE), University of Petroleum and Energy Studies, Bidholi, Dehradun, India.
  2. Department of Chemical Engineering (Energy Cluster) (SOE), University of Petroleum and Energy Studies, Bidholi, Dehradun, India.
Numerical analysis of fluid flow behavior in micro fracture of coal matrix

Received: 2024-04-24

Revised: 2024-08-13

Accepted: 2024-09-10

Published in Issue 2025-04-10

Copyright (c) 2025 Harinandan Kumar, Nirlipta Priyadarshini Nayak, Rose Havilah Pulla, Betty Joseph, Amrutha Ashok, Devika Lal Karukayil Manilal (Author)

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Kumar, H., Priyadarshini Nayak, N., Havilah Pulla, R., Joseph, B., Ashok, A., & Lal Karukayil Manilal, D. (2025). Numerical analysis of fluid flow behavior in micro fracture of coal matrix. Iranian Journal of Earth Sciences, 17(2). https://doi.org/10.57647/j.ijes.2025.1702.10
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Abstract

Coal beds are very complex porous media that exhibit heterogeneity, dual-porosity, and stress sensitivity. Simulation models for fluid flow from coal matrix for coal bed methane (CBM) and enhanced coal bed methane (ECBM) recovery have significantly progressed in recent decades. Analytical models have limitations or challenges in application due to assumptions and oversimplification. Therefore, in this study, numerical modeling and simulations were carried out to investigate the fluid flow behavior in the microchannel of the coal matrix. A variation in pressure drop was considered to evaluate the flow pattern in the coal matrix. Analysis was carried out to assess the effect of pressure drop on fluid velocity in the microchannel. The results of the simulations indicated an increased fluid velocity with pressure drop. Well-developed and connected microchannel was significant for transporting fluid in the coal matrix. The Simulation results were found helpful in estimating the critical pressure drop to enhance fluid flow in the microchannel of the coal matrix.

Keywords

  • Coal matrix,
  • Microchannel,
  • Fluid velocity,
  • Numerical analysis
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