Numerical simulation of CO2 enhanced coal bed methane recovery for a Vietnamese coal seam

Phung Quoc Huy, Kyuro Sasaki, Yuichi Sugai

Research output: Contribution to journalArticle

Abstract

A CO2-ECBMR numerical modeling has been build for the Mao Khe coal seam in Vietnam. The numerical simulations for sensitivity studies on the dominant factors for CH4 production, such as permeability, CO2 injection rate and well spacing have been carried out by giving CO2 a nd CH4 a dsorption capacities a nd v iscocities of CO2 and water as a function of the coal seam temperature (40 to 65 °C). Finally, the numerical simulations with fivespot model have been presented to evaluate CO2 injectivity and CH4 productivity by changing the well spacing. The results show that CO2 i njection is roughly proportional to number of i njectors, however t he t ime of t he maximum CH4 production rate is delayed with 5-spots unit area. From view of economical evaluation, drilling cost of wells and well spacing are important parameters to decide the optimum production scheme.
Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalEvergreen : joint journal of Novel Carbon Resource Sciences & Green Asia Strategy
Volume2
Publication statusPublished - Oct 2010

Fingerprint

Well spacing
coal seam
spacing
methane
Coal
Recovery
Computer simulation
simulation
Drilling
Productivity
drilling
permeability
well
productivity
cost
modeling
Coal bed methane
Costs
Water
temperature

All Science Journal Classification (ASJC) codes

  • Fuel Technology
  • Global and Planetary Change
  • Earth and Planetary Sciences(all)

Cite this

@article{36927ba880664c6c8bb251dab836f65d,
title = "Numerical simulation of CO2 enhanced coal bed methane recovery for a Vietnamese coal seam",
abstract = "A CO2-ECBMR numerical modeling has been build for the Mao Khe coal seam in Vietnam. The numerical simulations for sensitivity studies on the dominant factors for CH4 production, such as permeability, CO2 injection rate and well spacing have been carried out by giving CO2 a nd CH4 a dsorption capacities a nd v iscocities of CO2 and water as a function of the coal seam temperature (40 to 65 °C). Finally, the numerical simulations with fivespot model have been presented to evaluate CO2 injectivity and CH4 productivity by changing the well spacing. The results show that CO2 i njection is roughly proportional to number of i njectors, however t he t ime of t he maximum CH4 production rate is delayed with 5-spots unit area. From view of economical evaluation, drilling cost of wells and well spacing are important parameters to decide the optimum production scheme.",
author = "Huy, {Phung Quoc} and Kyuro Sasaki and Yuichi Sugai",
year = "2010",
month = "10",
language = "English",
volume = "2",
pages = "1--7",
journal = "Evergreen",
issn = "2189-0420",
publisher = "Novel Carbon Resource Sciences",

}

TY - JOUR

T1 - Numerical simulation of CO2 enhanced coal bed methane recovery for a Vietnamese coal seam

AU - Huy, Phung Quoc

AU - Sasaki, Kyuro

AU - Sugai, Yuichi

PY - 2010/10

Y1 - 2010/10

N2 - A CO2-ECBMR numerical modeling has been build for the Mao Khe coal seam in Vietnam. The numerical simulations for sensitivity studies on the dominant factors for CH4 production, such as permeability, CO2 injection rate and well spacing have been carried out by giving CO2 a nd CH4 a dsorption capacities a nd v iscocities of CO2 and water as a function of the coal seam temperature (40 to 65 °C). Finally, the numerical simulations with fivespot model have been presented to evaluate CO2 injectivity and CH4 productivity by changing the well spacing. The results show that CO2 i njection is roughly proportional to number of i njectors, however t he t ime of t he maximum CH4 production rate is delayed with 5-spots unit area. From view of economical evaluation, drilling cost of wells and well spacing are important parameters to decide the optimum production scheme.

AB - A CO2-ECBMR numerical modeling has been build for the Mao Khe coal seam in Vietnam. The numerical simulations for sensitivity studies on the dominant factors for CH4 production, such as permeability, CO2 injection rate and well spacing have been carried out by giving CO2 a nd CH4 a dsorption capacities a nd v iscocities of CO2 and water as a function of the coal seam temperature (40 to 65 °C). Finally, the numerical simulations with fivespot model have been presented to evaluate CO2 injectivity and CH4 productivity by changing the well spacing. The results show that CO2 i njection is roughly proportional to number of i njectors, however t he t ime of t he maximum CH4 production rate is delayed with 5-spots unit area. From view of economical evaluation, drilling cost of wells and well spacing are important parameters to decide the optimum production scheme.

UR - http://catalog.lib.kyushu-u.ac.jp/handle/2324/18391/p001.pdf

M3 - Article

VL - 2

SP - 1

EP - 7

JO - Evergreen

JF - Evergreen

SN - 2189-0420

ER -