A New Permeability Model for ECBM and Carbon Dioxide Sequestration Based on Matchsticks Geometry

Jun Tao Li

doi:10.4028/www.scientific.net/MSF.883.12

Paper Titles

Preface, Committees

Effect of Sintering Temperature on (Bi₂O₃Fe₂O₃)_0.8(Nb₂O₅)_0.2
p.3

Janssen’s Effect in Mechanical Behavior and Fracture of Granular Materials
p.7

A New Permeability Model for ECBM and Carbon Dioxide Sequestration Based on Matchsticks Geometry
p.12

Luminescence of Phosphor Balls Prepared Using Melt Quenching Synthesis Method
p.17

The Influence of Nitrogen Plasma on Crystalline Structure and Optical Properties
p.22

Effect of Nickel Doping on Dielectric, Piezoelectric Properties and Domain Configurations of PZT Based Ceramics
p.27

Finite Element Simulation of Complex Thermomechanical Fatigue Evolution
p.32

Characteristics and Environmental Assessment of Facing Bricks Produced from Dredged Sediments and Waste Glasses
p.37

HomeMaterials Science ForumMaterials Science Forum Vol. 883A New Permeability Model for ECBM and Carbon...

A New Permeability Model for ECBM and Carbon Dioxide Sequestration Based on Matchsticks Geometry

Abstract:

In the paper a new permeability model based on matchstick model accounting for stress change and matrix shrinkage and swelling caused by gas mixture (CH₄ and CO₂) is proposed. Finally, a history matching exercise is carried out using field data and experimental data and several models are compared to determine the accuracy of the new model. The modeling results show that the new model can fit the experimental results well. With the exchange of CH₄ on coal matrix with CO₂, the coal matrix tends to swell and the coal permeability will decrease. So the fracture pressure has better to be high enough to guarantee the easy flow of gases in coal seam. Only when we know the coal permeability change during CO₂ injection, can we have better knowledge about the ECBM performance and CO₂ sequestration feasibility for a certain coal seam.

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Periodical:

Materials Science Forum (Volume 883)

Pages:

12-16

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.883.12

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Online since:

January 2017

Authors:

Jun Tao Li*

Keywords:

ECBM, Gas Mixture Adsorption, Matrix Shrinkage, Modeling, Permeability Change

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