Effects of Pressure and Temperature on Well Cement Degradation by Supercritical CO2

The overall objective of this study was to investigate the physical and chemical effects of supercritical CO2 attack on well cement at different temperature and pressure condition. The dissimilarity of attack was compared in twoexposure conditions i.e. CO2-saturated brine and wet supercritical...

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Main Authors: Sauki, Arina, Irawan, Sonny
Format: Citation Index Journal
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.4729 /
Published: IJENS Publishers 2010
Subjects:
T Technology (General)
Online Access: http://eprints.utp.edu.my/4729/1/107704-2929%20IJET-IJENS.pdf
http://www.ijens.org/
http://eprints.utp.edu.my/4729/
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spelling utp-eprints.47292017-03-20T05:50:14Z Effects of Pressure and Temperature on Well Cement Degradation by Supercritical CO2 Sauki, Arina Irawan, Sonny T Technology (General) The overall objective of this study was to investigate the physical and chemical effects of supercritical CO2 attack on well cement at different temperature and pressure condition. The dissimilarity of attack was compared in twoexposure conditions i.e. CO2-saturated brine and wet supercritical CO2. Type of cement used for this invent was neat cement, Class G and was prepared according to API recommended practice 10B-2 by using Constant Speed Mixer. Curing of cement slurry and CO2 exposure test were done by using Curing Chamber and Cement Autoclave. Measurement and evolution of cement alteration against CO2 attack was determined under various temperatures and pressure condition at different exposure duration. Results from BackScattered Electron of Scanning Electron Microscopy (BSE-SEM), Energydispersive X-Ray Spectroscopy (EDX), X-Ray Diffraction (XRD) and compressive strength tester was analysed and studied. At high temperature, 1200C, cement will lose its strength faster than lower temperature, 400C. Same goes to pressure, the strength will lose faster in higher pressure, 140 bar as compared to lower pressure, 105 bar. Faster reduction in strength was found in CO2- saturated brine exposure compared to wet supercritical CO2. Index Terms – Supercritical CO2, brine, alteration, compressive strength, curing. IJENS Publishers 2010-12-10 Citation Index Journal PeerReviewed application/pdf http://eprints.utp.edu.my/4729/1/107704-2929%20IJET-IJENS.pdf http://www.ijens.org/ Sauki, Arina and Irawan, Sonny (2010) Effects of Pressure and Temperature on Well Cement Degradation by Supercritical CO2. [Citation Index Journal] http://eprints.utp.edu.my/4729/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
topic T Technology (General)
spellingShingle T Technology (General)
Sauki, Arina
Irawan, Sonny
Effects of Pressure and Temperature on Well Cement Degradation by Supercritical CO2
description The overall objective of this study was to investigate the physical and chemical effects of supercritical CO2 attack on well cement at different temperature and pressure condition. The dissimilarity of attack was compared in twoexposure conditions i.e. CO2-saturated brine and wet supercritical CO2. Type of cement used for this invent was neat cement, Class G and was prepared according to API recommended practice 10B-2 by using Constant Speed Mixer. Curing of cement slurry and CO2 exposure test were done by using Curing Chamber and Cement Autoclave. Measurement and evolution of cement alteration against CO2 attack was determined under various temperatures and pressure condition at different exposure duration. Results from BackScattered Electron of Scanning Electron Microscopy (BSE-SEM), Energydispersive X-Ray Spectroscopy (EDX), X-Ray Diffraction (XRD) and compressive strength tester was analysed and studied. At high temperature, 1200C, cement will lose its strength faster than lower temperature, 400C. Same goes to pressure, the strength will lose faster in higher pressure, 140 bar as compared to lower pressure, 105 bar. Faster reduction in strength was found in CO2- saturated brine exposure compared to wet supercritical CO2. Index Terms – Supercritical CO2, brine, alteration, compressive strength, curing.
format Citation Index Journal
author Sauki, Arina
Irawan, Sonny
author_sort Sauki, Arina
title Effects of Pressure and Temperature on Well Cement Degradation by Supercritical CO2
title_short Effects of Pressure and Temperature on Well Cement Degradation by Supercritical CO2
title_full Effects of Pressure and Temperature on Well Cement Degradation by Supercritical CO2
title_fullStr Effects of Pressure and Temperature on Well Cement Degradation by Supercritical CO2
title_full_unstemmed Effects of Pressure and Temperature on Well Cement Degradation by Supercritical CO2
title_sort effects of pressure and temperature on well cement degradation by supercritical co2
publisher IJENS Publishers
publishDate 2010
url http://eprints.utp.edu.my/4729/1/107704-2929%20IJET-IJENS.pdf
http://www.ijens.org/
http://eprints.utp.edu.my/4729/
_version_ 1741196076698828800
score 11.62408

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