Welcome To UTPedia

We would like to introduce you, the new knowledge repository product called UTPedia. The UTP Electronic and Digital Intellectual Asset. It stores digitized version of thesis, dissertation, final year project reports and past year examination questions.

Browse content of UTPedia using Year, Subject, Department and Author and Search for required document using Searching facilities included in UTPedia. UTPedia with full text are accessible for all registered users, whereas only the physical information and metadata can be retrieved by public users. UTPedia collaborating and connecting peoples with university’s intellectual works from anywhere.

Disclaimer - Universiti Teknologi PETRONAS shall not be liable for any loss or damage caused by the usage of any information obtained from this web site.Best viewed using Mozilla Firefox 3 or IE 7 with resolution 1024 x 768.

Impact of Coal Compressibility OnCoalbed Methane Production: A Comparison Study of Malaysian Coal to Other CBM Fields

Fook Ann, Kong (2013) Impact of Coal Compressibility OnCoalbed Methane Production: A Comparison Study of Malaysian Coal to Other CBM Fields. Universiti Teknologi PETRONAS. (Unpublished)

[img] PDF
Download (1552Kb)

Abstract

The purpose of this research is to explain the relationship between the coal compressibility and the subsequent impact on the gas production in a coalbed methane reservoir. Coalbed methane is a type of unconventional source of petroleum, in which the methane gas is stored in the coalbed reservoirs, which act as both source rock and reservoir rock. Unlike conventional reservoir rock properties, coal has dual-porosity characteristics. 95% of the gases are stored in micropore via adsorption in the matrix of the coal, best describes with Langmuir Adsorption Isotherm. The remaining gases are stored as free gas in the macropore, also known as the cleat system of the coal, made up of butt cleats and face cleats. After ‘dewatering’ during the production stage of coalbed methane, gases in the micropore of coal will be desorbed and flow into the cleats. At this stage, the coal undergoes several compressibility changes due to the change in effective stress and the matrix shrinkage as gases desorbed from coal matrix. The changes in the bulk compressibility, pore compressibility, matrix compressibility and matrix shrinkage compressibility will have impacts on the permeability of the coal, which ultimately have an impact on CBM production. Hence, laboratory experiments will be conducted to investigate the relationship between these compressiblities and the permeability of the coal samples. Subsequently, the production potential of the Malaysian coal samples can be determined via simulation studies and compared to other actual producing coalbed methane fields. Keywords: coalbed methane, compressibility, permeability, production

Item Type: Final Year Project
Academic Subject : Academic Department - Petroleum Geosciences - Petroleum Engineering - Reservoir management - Coalbed methane
Subject: T Technology > T Technology (General)
Divisions: Geoscience and Petroleum Engineering
Depositing User: Users 2053 not found.
Date Deposited: 18 Nov 2013 15:28
Last Modified: 25 Jan 2017 09:39
URI: http://utpedia.utp.edu.my/id/eprint/10692

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...