Elastomer compatibility study of oil-based and ester-based drilling fluids

Elastomers have been widely used in the industry as a sealer and as part of the important accessories to the drilling equipment especially in the bottom hole assembly. The most critical properties of elastomers are their resistance towards chemical substances such as drilling fluids. Drilling fluids...

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Main Authors: Lebai Ismail, Abdul Razak, Mohd. Arshad, Azmi, Abdul Rahman, Abu Talib, Ismail, Nurul Jannah
Format: Conference or Workshop Item
Published: 2018
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Online Access:http://eprints.utm.my/id/eprint/82380/
http://dx.doi.org/10.1063/1.5066854
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spelling my.utm.823802019-10-02T03:11:33Z http://eprints.utm.my/id/eprint/82380/ Elastomer compatibility study of oil-based and ester-based drilling fluids Lebai Ismail, Abdul Razak Mohd. Arshad, Azmi Abdul Rahman, Abu Talib Ismail, Nurul Jannah TP Chemical technology Elastomers have been widely used in the industry as a sealer and as part of the important accessories to the drilling equipment especially in the bottom hole assembly. The most critical properties of elastomers are their resistance towards chemical substances such as drilling fluids. Drilling fluids are used during drilling operation to provide many functions such as to cool the drill bit, provide lubrication and to remove the rock chips known as cuttings from the bottom hole to the surface. Different types of drilling fluid based such as water based, oil based and synthetic based are commonly used in the oil and gas fields. Oil based and synthetic based drilling fluids have superior performances over the conventional water based drilling fluids especially when drilling deep well with high pressure and high temperature conditions. Oil based drilling fluids; however, has high aromatic content that leads to pollution and higher toxicity level. In this study, new ester based drilling fluids have been used as an alternative and compared with oil based and synthetic based drilling fluids. Several types of esters derived from palm oil, corn oil and rice bran oil aroused in this study. This study focused on the effect of rubber elastomer towards oil based and ester based drilling fluids at various temperatures and exposure periods. Nitrile butadiene rubber (NBR) were compounded and cut into dumb-bell shape. The weights of elastomers were measured and the tensile strength tests were conducted using ASTM D412 protocol. Temperatures of 25, 80 and 125 °C were chosen and the elastomers were exposed to the drilling fluids for one and two weeks. The results revealed that the diesel and sarapar drilling fluids were compatible with NBR elastomer. As a comparison, tensile strength and the volume of swelling for ester based drilling fluids were significantly changed throughout the tests. However, this swelling effect may be suitable to be used as swell packer during production operation. 2018 Conference or Workshop Item PeerReviewed Lebai Ismail, Abdul Razak and Mohd. Arshad, Azmi and Abdul Rahman, Abu Talib and Ismail, Nurul Jannah (2018) Elastomer compatibility study of oil-based and ester-based drilling fluids. In: 4th International Conference on Green Design and Manufacture 2018, IConGDM 2018, 29 April 2018 - 30 April 2018, Hotel Ho Chi Minh, Viet Nam. http://dx.doi.org/10.1063/1.5066854
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TP Chemical technology
spellingShingle TP Chemical technology
Lebai Ismail, Abdul Razak
Mohd. Arshad, Azmi
Abdul Rahman, Abu Talib
Ismail, Nurul Jannah
Elastomer compatibility study of oil-based and ester-based drilling fluids
description Elastomers have been widely used in the industry as a sealer and as part of the important accessories to the drilling equipment especially in the bottom hole assembly. The most critical properties of elastomers are their resistance towards chemical substances such as drilling fluids. Drilling fluids are used during drilling operation to provide many functions such as to cool the drill bit, provide lubrication and to remove the rock chips known as cuttings from the bottom hole to the surface. Different types of drilling fluid based such as water based, oil based and synthetic based are commonly used in the oil and gas fields. Oil based and synthetic based drilling fluids have superior performances over the conventional water based drilling fluids especially when drilling deep well with high pressure and high temperature conditions. Oil based drilling fluids; however, has high aromatic content that leads to pollution and higher toxicity level. In this study, new ester based drilling fluids have been used as an alternative and compared with oil based and synthetic based drilling fluids. Several types of esters derived from palm oil, corn oil and rice bran oil aroused in this study. This study focused on the effect of rubber elastomer towards oil based and ester based drilling fluids at various temperatures and exposure periods. Nitrile butadiene rubber (NBR) were compounded and cut into dumb-bell shape. The weights of elastomers were measured and the tensile strength tests were conducted using ASTM D412 protocol. Temperatures of 25, 80 and 125 °C were chosen and the elastomers were exposed to the drilling fluids for one and two weeks. The results revealed that the diesel and sarapar drilling fluids were compatible with NBR elastomer. As a comparison, tensile strength and the volume of swelling for ester based drilling fluids were significantly changed throughout the tests. However, this swelling effect may be suitable to be used as swell packer during production operation.
format Conference or Workshop Item
author Lebai Ismail, Abdul Razak
Mohd. Arshad, Azmi
Abdul Rahman, Abu Talib
Ismail, Nurul Jannah
author_facet Lebai Ismail, Abdul Razak
Mohd. Arshad, Azmi
Abdul Rahman, Abu Talib
Ismail, Nurul Jannah
author_sort Lebai Ismail, Abdul Razak
title Elastomer compatibility study of oil-based and ester-based drilling fluids
title_short Elastomer compatibility study of oil-based and ester-based drilling fluids
title_full Elastomer compatibility study of oil-based and ester-based drilling fluids
title_fullStr Elastomer compatibility study of oil-based and ester-based drilling fluids
title_full_unstemmed Elastomer compatibility study of oil-based and ester-based drilling fluids
title_sort elastomer compatibility study of oil-based and ester-based drilling fluids
publishDate 2018
url http://eprints.utm.my/id/eprint/82380/
http://dx.doi.org/10.1063/1.5066854
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