Forecasting CBM Production of Mukah Balingian Coalfield, Sarawak, Malaysia.

Coal-Bed Methane (CBM) or coal-bed gas is a form of natural gas extracted from coal beds. The term refers to methane adsorbed into the solid matrix of the coal. In order to understand the performance of a CBM reservoir, we need to know the Original Gas in Place, Production Rates and also Recovery...

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Main Authors: Irawan, Sonny, Nair, Prashanth, Tunio, Saleem Qadir
Format: Citation Index Journal
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.8060 /
Published: Maxwell Science Publication 2012
Subjects:
Q Science (General)
Online Access: http://eprints.utp.edu.my/8060/1/CBM_production_paper.pdf
http://eprints.utp.edu.my/8060/
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spelling utp-eprints.80602017-03-20T01:59:27Z Forecasting CBM Production of Mukah Balingian Coalfield, Sarawak, Malaysia. Irawan, Sonny Nair, Prashanth Tunio, Saleem Qadir Q Science (General) Coal-Bed Methane (CBM) or coal-bed gas is a form of natural gas extracted from coal beds. The term refers to methane adsorbed into the solid matrix of the coal. In order to understand the performance of a CBM reservoir, we need to know the Original Gas in Place, Production Rates and also Recovery Factor. This is mainly on creating a Microsoft Excel ® 2007 with the help of Visual Basic for Application (VBA) based CBM forecast tool. Field data from Mukah-Balingian Coalfield Sarawak is analyzed and forecasted. Original Gas in Place is calculated by multiplying the mass of the coal with the initial gas content of the coal bed. Following from the generated Relative Permeability data, production rates for both water and gas calculated over a specific time range. During the whole production, an abandonment condition which is mainly the pressure will be set by the engineers. Using this abandonment pressure, we can calculate the recovery factor. Using constant values of Langmuir Volume of 714.29 scf/ton, Langmuir Pressure of 1024.5 psia and reference initial pressure of 2000 psia; flowing pressure of 100 psia which is also the abandonment pressure, various range of skin, permeability, initial gas content as well as porosity tested to predict the field performance. Using the range of initial gas content of 86.286-173.36 scf/ton; range of permeability of 1.01e-6 mD to 1010 mD; porosity, with a range of 0.0001 to 0.5%; Skin ranged from-5 to 4, CBM production is forecasted for the range of 5 years. Maxwell Science Publication 2012-11-01 Citation Index Journal PeerReviewed application/pdf http://eprints.utp.edu.my/8060/1/CBM_production_paper.pdf Irawan, Sonny and Nair, Prashanth and Tunio, Saleem Qadir (2012) Forecasting CBM Production of Mukah Balingian Coalfield, Sarawak, Malaysia. [Citation Index Journal] http://eprints.utp.edu.my/8060/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
topic Q Science (General)
spellingShingle Q Science (General)
Irawan, Sonny
Nair, Prashanth
Tunio, Saleem Qadir
Forecasting CBM Production of Mukah Balingian Coalfield, Sarawak, Malaysia.
description Coal-Bed Methane (CBM) or coal-bed gas is a form of natural gas extracted from coal beds. The term refers to methane adsorbed into the solid matrix of the coal. In order to understand the performance of a CBM reservoir, we need to know the Original Gas in Place, Production Rates and also Recovery Factor. This is mainly on creating a Microsoft Excel ® 2007 with the help of Visual Basic for Application (VBA) based CBM forecast tool. Field data from Mukah-Balingian Coalfield Sarawak is analyzed and forecasted. Original Gas in Place is calculated by multiplying the mass of the coal with the initial gas content of the coal bed. Following from the generated Relative Permeability data, production rates for both water and gas calculated over a specific time range. During the whole production, an abandonment condition which is mainly the pressure will be set by the engineers. Using this abandonment pressure, we can calculate the recovery factor. Using constant values of Langmuir Volume of 714.29 scf/ton, Langmuir Pressure of 1024.5 psia and reference initial pressure of 2000 psia; flowing pressure of 100 psia which is also the abandonment pressure, various range of skin, permeability, initial gas content as well as porosity tested to predict the field performance. Using the range of initial gas content of 86.286-173.36 scf/ton; range of permeability of 1.01e-6 mD to 1010 mD; porosity, with a range of 0.0001 to 0.5%; Skin ranged from-5 to 4, CBM production is forecasted for the range of 5 years.
format Citation Index Journal
author Irawan, Sonny
Nair, Prashanth
Tunio, Saleem Qadir
author_sort Irawan, Sonny
title Forecasting CBM Production of Mukah Balingian Coalfield, Sarawak, Malaysia.
title_short Forecasting CBM Production of Mukah Balingian Coalfield, Sarawak, Malaysia.
title_full Forecasting CBM Production of Mukah Balingian Coalfield, Sarawak, Malaysia.
title_fullStr Forecasting CBM Production of Mukah Balingian Coalfield, Sarawak, Malaysia.
title_full_unstemmed Forecasting CBM Production of Mukah Balingian Coalfield, Sarawak, Malaysia.
title_sort forecasting cbm production of mukah balingian coalfield, sarawak, malaysia.
publisher Maxwell Science Publication
publishDate 2012
url http://eprints.utp.edu.my/8060/1/CBM_production_paper.pdf
http://eprints.utp.edu.my/8060/
_version_ 1741196111511552000
score 11.62408

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