Physio-chemical interaction of Ethylene-Vinyl Acetate copolymer on bonding ability in the cementing material used for oil and gas well

Effective bond of cement sheath to casing or formation depends on higher tensile strength and lower young's modulus which are a measure of its ability to withstand deformation under load without parting. This work utilized Ethylene Vinyl Acetate (EVA) redispersible polymer powder as additive in...

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Main Authors: Lanka, S.T., Moses, N.G.A., Suppiah, R.R., Maulianda, B.T.
Format: Article
Published: KeAi Publishing Communications Ltd. 2021
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85117922452&doi=10.1016%2fj.ptlrs.2021.10.003&partnerID=40&md5=8e52210fb8e61a6b957d18f359b9c445
http://eprints.utp.edu.my/29395/
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spelling my.utp.eprints.293952022-03-25T01:50:27Z Physio-chemical interaction of Ethylene-Vinyl Acetate copolymer on bonding ability in the cementing material used for oil and gas well Lanka, S.T. Moses, N.G.A. Suppiah, R.R. Maulianda, B.T. Effective bond of cement sheath to casing or formation depends on higher tensile strength and lower young's modulus which are a measure of its ability to withstand deformation under load without parting. This work utilized Ethylene Vinyl Acetate (EVA) redispersible polymer powder as additive in the class G cement to characterize bonding ability. Tensile strength was measured for samples cured at 90 °C for 3 days, whereas compressive strength was measured for samples cured at 120 °C for 1 day and 3 days under atmospheric pressure. The results showed that, with the addition of beyond 10 by weight of cement (BWOC) of polymer, not only tensile strength was improved, but also reduced young's modulus. Addition of EVA additive beyond 10 BWOC showed significant benefit of flexibility in the cement system. FTIR (Fourier Transform Infrared Spectroscopy) indicated that presence of high VA (Vinyl Acetate) has no effect on polymerization of Silicates, which shows it does not hider in the formation of C�S�H phase. Intensity of chemical bond augmented with longer curing time and increased polymer content, as seen in O�H stretching vibration at 3434 cm�1 and from Carboxylate anion at 1571 cm�1 to confirm on hydrolysis. Mercury Intrusion porosimeter (MIP) showed significant reduction in fraction of mesopore sizes within the cement matrix, with the polymer addition. © 2021 Chinese Petroleum Society KeAi Publishing Communications Ltd. 2021 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85117922452&doi=10.1016%2fj.ptlrs.2021.10.003&partnerID=40&md5=8e52210fb8e61a6b957d18f359b9c445 Lanka, S.T. and Moses, N.G.A. and Suppiah, R.R. and Maulianda, B.T. (2021) Physio-chemical interaction of Ethylene-Vinyl Acetate copolymer on bonding ability in the cementing material used for oil and gas well. Petroleum Research . http://eprints.utp.edu.my/29395/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
description Effective bond of cement sheath to casing or formation depends on higher tensile strength and lower young's modulus which are a measure of its ability to withstand deformation under load without parting. This work utilized Ethylene Vinyl Acetate (EVA) redispersible polymer powder as additive in the class G cement to characterize bonding ability. Tensile strength was measured for samples cured at 90 °C for 3 days, whereas compressive strength was measured for samples cured at 120 °C for 1 day and 3 days under atmospheric pressure. The results showed that, with the addition of beyond 10 by weight of cement (BWOC) of polymer, not only tensile strength was improved, but also reduced young's modulus. Addition of EVA additive beyond 10 BWOC showed significant benefit of flexibility in the cement system. FTIR (Fourier Transform Infrared Spectroscopy) indicated that presence of high VA (Vinyl Acetate) has no effect on polymerization of Silicates, which shows it does not hider in the formation of C�S�H phase. Intensity of chemical bond augmented with longer curing time and increased polymer content, as seen in O�H stretching vibration at 3434 cm�1 and from Carboxylate anion at 1571 cm�1 to confirm on hydrolysis. Mercury Intrusion porosimeter (MIP) showed significant reduction in fraction of mesopore sizes within the cement matrix, with the polymer addition. © 2021 Chinese Petroleum Society
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author Lanka, S.T.
Moses, N.G.A.
Suppiah, R.R.
Maulianda, B.T.
spellingShingle Lanka, S.T.
Moses, N.G.A.
Suppiah, R.R.
Maulianda, B.T.
Physio-chemical interaction of Ethylene-Vinyl Acetate copolymer on bonding ability in the cementing material used for oil and gas well
author_facet Lanka, S.T.
Moses, N.G.A.
Suppiah, R.R.
Maulianda, B.T.
author_sort Lanka, S.T.
title Physio-chemical interaction of Ethylene-Vinyl Acetate copolymer on bonding ability in the cementing material used for oil and gas well
title_short Physio-chemical interaction of Ethylene-Vinyl Acetate copolymer on bonding ability in the cementing material used for oil and gas well
title_full Physio-chemical interaction of Ethylene-Vinyl Acetate copolymer on bonding ability in the cementing material used for oil and gas well
title_fullStr Physio-chemical interaction of Ethylene-Vinyl Acetate copolymer on bonding ability in the cementing material used for oil and gas well
title_full_unstemmed Physio-chemical interaction of Ethylene-Vinyl Acetate copolymer on bonding ability in the cementing material used for oil and gas well
title_sort physio-chemical interaction of ethylene-vinyl acetate copolymer on bonding ability in the cementing material used for oil and gas well
publisher KeAi Publishing Communications Ltd.
publishDate 2021
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85117922452&doi=10.1016%2fj.ptlrs.2021.10.003&partnerID=40&md5=8e52210fb8e61a6b957d18f359b9c445
http://eprints.utp.edu.my/29395/
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