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Coalbed methane (CBM) is unconventional gas reservoir from coal. In early time, gas is adsorbed on coal surface in micropore. Caused by effect of pressure and temperature. When reservoir pressure is decreased, adsorbed gas will be released from coal surface, this process called desorption. Desorbed...

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Main Author: FIRANDA (NIM 12204021); Pembimbing : Dr. Ir. Taufan Marhaendrajana, ERIC
Format: Final Project
Language:Indonesia
Online Access:https://digilib.itb.ac.id/gdl/view/12929
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Institution: Institut Teknologi Bandung
Language: Indonesia
id id-itb.:12929
spelling id-itb.:129292017-09-27T10:37:31Z#TITLE_ALTERNATIVE# FIRANDA (NIM 12204021); Pembimbing : Dr. Ir. Taufan Marhaendrajana, ERIC Indonesia Final Project INSTITUT TEKNOLOGI BANDUNG https://digilib.itb.ac.id/gdl/view/12929 Coalbed methane (CBM) is unconventional gas reservoir from coal. In early time, gas is adsorbed on coal surface in micropore. Caused by effect of pressure and temperature. When reservoir pressure is decreased, adsorbed gas will be released from coal surface, this process called desorption. Desorbed gas will flow as long as micropore to fracture (cleat) with diffusion process which effect of gas concentration gradient. In cleat, gas will flow according to convection (Darcian flow). Besides gas, it also have water which full up cleat. Early water saturation almost 100% then decrease while gas content is increasing to cleat. Gas flow in coalbed methane can be modeled start from desorbed gas on coal surface, flowing along micropore to cleat until gas flow along cleat to well bore thus production performance can be predicted. In this paper, author predicted gas production profile used manual calculation method (semi analytical) and the result is compared with simulator result which used numerical method. text
institution Institut Teknologi Bandung
building Institut Teknologi Bandung Library
continent Asia
country Indonesia
Indonesia
content_provider Institut Teknologi Bandung
collection Digital ITB
language Indonesia
description Coalbed methane (CBM) is unconventional gas reservoir from coal. In early time, gas is adsorbed on coal surface in micropore. Caused by effect of pressure and temperature. When reservoir pressure is decreased, adsorbed gas will be released from coal surface, this process called desorption. Desorbed gas will flow as long as micropore to fracture (cleat) with diffusion process which effect of gas concentration gradient. In cleat, gas will flow according to convection (Darcian flow). Besides gas, it also have water which full up cleat. Early water saturation almost 100% then decrease while gas content is increasing to cleat. Gas flow in coalbed methane can be modeled start from desorbed gas on coal surface, flowing along micropore to cleat until gas flow along cleat to well bore thus production performance can be predicted. In this paper, author predicted gas production profile used manual calculation method (semi analytical) and the result is compared with simulator result which used numerical method.
format Final Project
author FIRANDA (NIM 12204021); Pembimbing : Dr. Ir. Taufan Marhaendrajana, ERIC
spellingShingle FIRANDA (NIM 12204021); Pembimbing : Dr. Ir. Taufan Marhaendrajana, ERIC
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author_facet FIRANDA (NIM 12204021); Pembimbing : Dr. Ir. Taufan Marhaendrajana, ERIC
author_sort FIRANDA (NIM 12204021); Pembimbing : Dr. Ir. Taufan Marhaendrajana, ERIC
title #TITLE_ALTERNATIVE#
title_short #TITLE_ALTERNATIVE#
title_full #TITLE_ALTERNATIVE#
title_fullStr #TITLE_ALTERNATIVE#
title_full_unstemmed #TITLE_ALTERNATIVE#
title_sort #title_alternative#
url https://digilib.itb.ac.id/gdl/view/12929
_version_ 1820736044788613120

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