Numerical modelling and simulation of CO2–enhanced coal-bed methane recovery (CO2-ECBMR): The effect of coal swelling on gas production performance

Ferian Anggara, Kyuro Sasaki, Yuichi Sugai

Research output: Contribution to journalArticle

Abstract

This presents study investigate the effect of swelling on gas production performances at coal reservoirs during CO2-ECBMR processes. The stressdependent permeability-models to express effect of coal matrix shrinkage/swelling using Palmer and Mansoori (P&M) and Shi and Durucan (S&D) models were constructed based on present experimental results for typical coal reservoirs with the distance of 400 to 800 m between injection and production wells. By applying the P&M and S&D models, the numerical simulation results showed that CH4 production rate was decreasing and peak production time was delayed due to effect of stress and permeability changes caused by coal matrix swelling. The total CH4 production ratio of swelling effect/no-swelling was simulated as 0.18 to 0.95 for permeability 1 to 100 mD, respectively. It has been cleared that swelling affects gas production at permeability 1 to 15 mD, however, it can be negligible at permeability over 15 mD.
Original languageEnglish
Pages (from-to)102-111
Number of pages10
JournalJournal of Applied Geology
Volume7
Issue number2
Publication statusPublished - Dec 2015

Fingerprint

gas production
coal seam
swelling
Swelling
methane
Coal
coal
Recovery
permeability
Gases
modeling
simulation
matrix
effect
Coal bed methane
well
Computer simulation

All Science Journal Classification (ASJC) codes

  • Fuel Technology
  • Geotechnical Engineering and Engineering Geology

Cite this

@article{4d240da7f6144abcbf9bd9e264cc5bc1,
title = "Numerical modelling and simulation of CO2–enhanced coal-bed methane recovery (CO2-ECBMR): The effect of coal swelling on gas production performance",
abstract = "This presents study investigate the effect of swelling on gas production performances at coal reservoirs during CO2-ECBMR processes. The stressdependent permeability-models to express effect of coal matrix shrinkage/swelling using Palmer and Mansoori (P&M) and Shi and Durucan (S&D) models were constructed based on present experimental results for typical coal reservoirs with the distance of 400 to 800 m between injection and production wells. By applying the P&M and S&D models, the numerical simulation results showed that CH4 production rate was decreasing and peak production time was delayed due to effect of stress and permeability changes caused by coal matrix swelling. The total CH4 production ratio of swelling effect/no-swelling was simulated as 0.18 to 0.95 for permeability 1 to 100 mD, respectively. It has been cleared that swelling affects gas production at permeability 1 to 15 mD, however, it can be negligible at permeability over 15 mD.",
author = "Ferian Anggara and Kyuro Sasaki and Yuichi Sugai",
year = "2015",
month = "12",
language = "English",
volume = "7",
pages = "102--111",
journal = "Journal of Applied Geology",
issn = "2502-2822",
number = "2",

}

TY - JOUR

T1 - Numerical modelling and simulation of CO2–enhanced coal-bed methane recovery (CO2-ECBMR)

T2 - The effect of coal swelling on gas production performance

AU - Anggara, Ferian

AU - Sasaki, Kyuro

AU - Sugai, Yuichi

PY - 2015/12

Y1 - 2015/12

N2 - This presents study investigate the effect of swelling on gas production performances at coal reservoirs during CO2-ECBMR processes. The stressdependent permeability-models to express effect of coal matrix shrinkage/swelling using Palmer and Mansoori (P&M) and Shi and Durucan (S&D) models were constructed based on present experimental results for typical coal reservoirs with the distance of 400 to 800 m between injection and production wells. By applying the P&M and S&D models, the numerical simulation results showed that CH4 production rate was decreasing and peak production time was delayed due to effect of stress and permeability changes caused by coal matrix swelling. The total CH4 production ratio of swelling effect/no-swelling was simulated as 0.18 to 0.95 for permeability 1 to 100 mD, respectively. It has been cleared that swelling affects gas production at permeability 1 to 15 mD, however, it can be negligible at permeability over 15 mD.

AB - This presents study investigate the effect of swelling on gas production performances at coal reservoirs during CO2-ECBMR processes. The stressdependent permeability-models to express effect of coal matrix shrinkage/swelling using Palmer and Mansoori (P&M) and Shi and Durucan (S&D) models were constructed based on present experimental results for typical coal reservoirs with the distance of 400 to 800 m between injection and production wells. By applying the P&M and S&D models, the numerical simulation results showed that CH4 production rate was decreasing and peak production time was delayed due to effect of stress and permeability changes caused by coal matrix swelling. The total CH4 production ratio of swelling effect/no-swelling was simulated as 0.18 to 0.95 for permeability 1 to 100 mD, respectively. It has been cleared that swelling affects gas production at permeability 1 to 15 mD, however, it can be negligible at permeability over 15 mD.

M3 - Article

VL - 7

SP - 102

EP - 111

JO - Journal of Applied Geology

JF - Journal of Applied Geology

SN - 2502-2822

IS - 2

ER -