A quick caprock integrity analysis for carbon dioxide storage sites in Malaysian fields

The purpose of this research work is to establish a quick method for caprock integrity assessment for carbon dioxide (CO2) storage site selection. There are three main components to evaluate a seal potential which are through seal capacity, seal geometry, and seal integrity. This research work focus...

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Main Author:	Mohd Ali, Siti Syareena
Format:	Thesis
Language:	English
Published:	2020
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/92032/1/SitiSyarenaMohdMSChE2020.pdf
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id	my-utm-ep.92032
record_format	uketd_dc
spelling	my-utm-ep.920322021-08-30T04:59:13Z A quick caprock integrity analysis for carbon dioxide storage sites in Malaysian fields 2020 Mohd Ali, Siti Syareena TP Chemical technology The purpose of this research work is to establish a quick method for caprock integrity assessment for carbon dioxide (CO2) storage site selection. There are three main components to evaluate a seal potential which are through seal capacity, seal geometry, and seal integrity. This research work focuses on evaluation of seal characteristics through its pressure behavior and evidence of potential leakage. Various logs data such as gamma ray, sonic logs, density logs, and resistivity are utilized to establish 1D pore pressure analysis. At the same time mud logs data are used to investigate the similarity of hydrocarbon from reservoir and seal (if any). In this study, two fields namely Camos and Zhann have been identified and evaluated for their seal characteristics, thickness, environment of deposition and pressure regimes differences in order to determine their seal effectiveness through integration of pore pressure analysis, background gas or gas while drilling evidence and seal capacity from Mercury Injection Capillary Pressure (MICP) data. Camos field, a depleted carbonate field in Sarawak Basin with continuous seal shows an overpressure regime with gas chimney in immediate seal above it. Meanwhile Zhann field, a depleted clastic field in Malay Basin shows slight overpressure in deeper reservoirs and hydrostatic in most of the multistack sand reservoirs. Both fields show the evidence of effective seal through their own geological characteristics, pore pressure and gas component analysis. Nevertheless, both fields have their own challenges to be converted to potential storage sites. A detailed understanding and analysis is required for seal integrity evaluation which can lead to better plan establishment that may further reduce risks during selection of CO2 injection site and help to execute future well or field monitoring design. 2020 Thesis http://eprints.utm.my/id/eprint/92032/ http://eprints.utm.my/id/eprint/92032/1/SitiSyarenaMohdMSChE2020.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:139169 masters Universiti Teknologi Malaysia, Faculty of Engineering - School of Chemical & Energy Engineering Faculty of Engineering - School of Chemical & Energy Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Mohd Ali, Siti Syareena A quick caprock integrity analysis for carbon dioxide storage sites in Malaysian fields
description	The purpose of this research work is to establish a quick method for caprock integrity assessment for carbon dioxide (CO2) storage site selection. There are three main components to evaluate a seal potential which are through seal capacity, seal geometry, and seal integrity. This research work focuses on evaluation of seal characteristics through its pressure behavior and evidence of potential leakage. Various logs data such as gamma ray, sonic logs, density logs, and resistivity are utilized to establish 1D pore pressure analysis. At the same time mud logs data are used to investigate the similarity of hydrocarbon from reservoir and seal (if any). In this study, two fields namely Camos and Zhann have been identified and evaluated for their seal characteristics, thickness, environment of deposition and pressure regimes differences in order to determine their seal effectiveness through integration of pore pressure analysis, background gas or gas while drilling evidence and seal capacity from Mercury Injection Capillary Pressure (MICP) data. Camos field, a depleted carbonate field in Sarawak Basin with continuous seal shows an overpressure regime with gas chimney in immediate seal above it. Meanwhile Zhann field, a depleted clastic field in Malay Basin shows slight overpressure in deeper reservoirs and hydrostatic in most of the multistack sand reservoirs. Both fields show the evidence of effective seal through their own geological characteristics, pore pressure and gas component analysis. Nevertheless, both fields have their own challenges to be converted to potential storage sites. A detailed understanding and analysis is required for seal integrity evaluation which can lead to better plan establishment that may further reduce risks during selection of CO2 injection site and help to execute future well or field monitoring design.
format	Thesis
qualification_level	Master's degree
author	Mohd Ali, Siti Syareena
author_facet	Mohd Ali, Siti Syareena
author_sort	Mohd Ali, Siti Syareena
title	A quick caprock integrity analysis for carbon dioxide storage sites in Malaysian fields
title_short	A quick caprock integrity analysis for carbon dioxide storage sites in Malaysian fields
title_full	A quick caprock integrity analysis for carbon dioxide storage sites in Malaysian fields
title_fullStr	A quick caprock integrity analysis for carbon dioxide storage sites in Malaysian fields
title_full_unstemmed	A quick caprock integrity analysis for carbon dioxide storage sites in Malaysian fields
title_sort	quick caprock integrity analysis for carbon dioxide storage sites in malaysian fields
granting_institution	Universiti Teknologi Malaysia, Faculty of Engineering - School of Chemical & Energy Engineering
granting_department	Faculty of Engineering - School of Chemical & Energy Engineering
publishDate	2020
url	http://eprints.utm.my/id/eprint/92032/1/SitiSyarenaMohdMSChE2020.pdf
_version_	1747818557365813248

A quick caprock integrity analysis for carbon dioxide storage sites in Malaysian fields

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