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PRELIMINARY STUDY ON THE EFFECT OF VIBRATION AND SURFACTANT ON MALAYSIAN COAL FOR CBM STUDY

ESA, ROSAN (2014) PRELIMINARY STUDY ON THE EFFECT OF VIBRATION AND SURFACTANT ON MALAYSIAN COAL FOR CBM STUDY. IRC, Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

Coalbed Methane (CBM) is unconventional gas reservoir. High volume of gas located in bituminous coal rank. Coalbed Methane reservoir is dual porosity which is fracture and matrix porosity, gas or other liquids situated in the matrix porosity and migrate through the continuous fracture called face cleats or through the discontinuous fracture called butt cleats. The extraction or production can be made in term of desorption of gas from coal. Desorption becomes more difficult when water production presents in the coal has not been produced therefore it hinders the methane desorption or methane stuck in the matrix and also less permeability of coal will create an inconvenience for methane to migrate or flow from matrix and the declination of methane production. These are the encountered problems that coalbed methane need to be stimulated. Therefore this project is to investigate the effect of changes in Malaysian coal sample characteristics in accordance with the important parameters i.e., frequency, surfactant and temperature. Coal samples from Balingian coalfield, Sarawak, Malaysia are tested to investigate the effect of surfactant and different frequencies at specified temperatures at which yield the positive maximum effect called optimum condition. The results indicate that the coal characteristics are improved or increased at optimum condition. Surfactant stimulation yields the enlargement of the pore of the coal sample at higher temperature. Vibration stimulation proves the improvement of coal properties at optimum frequency of 50 Hz for both temperatures of 50 °C and 70 °C. Hopefully this project can bring some new changes in study of the coalbed methane in the future.

Item Type: Final Year Project
Academic Subject : Academic Department - Petroleum Geosciences - Petroleum Engineering - Reservoir Engineering - Reservoir fluid properties
Subject: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Geoscience and Petroleum Engineering
Depositing User: Ahmad Suhairi Mohamed Lazim
Date Deposited: 28 Jan 2015 09:48
Last Modified: 25 Jan 2017 09:36
URI: http://utpedia.utp.edu.my/id/eprint/14551

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