Viscoelastic properties of anionic brominated surfactants

Larry Lee, Jumat Salimon, Mohd. Ambar Yarmo, Misni Misran

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The scarcity of land based oil reserves has necessitated the exploration of off shore oil. This exploration is often carried out in pristine waters and the use of green chemicals is essential to reduce environmental degradation. In the recovery of oil and gas from rocky formations, well bore fluids such as packer fluids, fracturing fluids, conformance and permeability control fluids are extensively employed. Potassium oleate as viscoelastic surfactants gives a low partition coefficient when in contact with hydrocarbon. Bromination of the oleate chain has been shown in this work to increase the partition coefficient and still maintaining its viscoelasticity. The partition coefficient increased to ca 8% compared to negligible for potassium oleate. A gel was formed when a 20% solution of potasssium 9-bromo stearate was mixed with 8% KCl. Contacting this gel with hydrocarbon resulted in a loss of viscosity due to the improved solubility of the brominated compound in hydrocarbon. This facilitates the removal of the surfactants after its use as a fracturing fluid. The viscoelastic properties were demonstrated using a Bohlin rheometer. The graph of viscosity vs shear rate shows at first a shear rate independence up to a shear rate of 0.2 s-1 and then falling with shear rate typical of a viscoelastic fluid. The zero shear viscosity η0 varied from 18 Pa s to 220 Pa s whilst the shear viscosity at 100 s-1 ranged from 0.16 Pa s to 15 Pa s for surfactant concentration from 5 to 20%.

Original languageEnglish
Pages (from-to)753-760
Number of pages8
JournalSains Malaysiana
Volume39
Issue number5
Publication statusPublished - Oct 2010

Fingerprint

Anionic surfactants
Shear deformation
Fracturing fluids
Surface active agents
Fluids
Shear viscosity
Hydrocarbons
Potassium
Gels
Viscosity
Packers
Rheometers
Viscoelasticity
Weathering
Solubility
Recovery
Gases
Oils
Water

Keywords

  • Brominated oleate
  • Green chemistry
  • Oil and gas
  • Surfactants
  • Viscoelastic

ASJC Scopus subject areas

  • General

Cite this

Lee, L., Salimon, J., Yarmo, M. A., & Misran, M. (2010). Viscoelastic properties of anionic brominated surfactants. Sains Malaysiana, 39(5), 753-760.

Viscoelastic properties of anionic brominated surfactants. / Lee, Larry; Salimon, Jumat; Yarmo, Mohd. Ambar; Misran, Misni.

In: Sains Malaysiana, Vol. 39, No. 5, 10.2010, p. 753-760.

Research output: Contribution to journalArticle

Lee, L, Salimon, J, Yarmo, MA & Misran, M 2010, 'Viscoelastic properties of anionic brominated surfactants', Sains Malaysiana, vol. 39, no. 5, pp. 753-760.
Lee, Larry ; Salimon, Jumat ; Yarmo, Mohd. Ambar ; Misran, Misni. / Viscoelastic properties of anionic brominated surfactants. In: Sains Malaysiana. 2010 ; Vol. 39, No. 5. pp. 753-760.
@article{5d8b5e007ca84c1cb578484bd42b9395,
title = "Viscoelastic properties of anionic brominated surfactants",
abstract = "The scarcity of land based oil reserves has necessitated the exploration of off shore oil. This exploration is often carried out in pristine waters and the use of green chemicals is essential to reduce environmental degradation. In the recovery of oil and gas from rocky formations, well bore fluids such as packer fluids, fracturing fluids, conformance and permeability control fluids are extensively employed. Potassium oleate as viscoelastic surfactants gives a low partition coefficient when in contact with hydrocarbon. Bromination of the oleate chain has been shown in this work to increase the partition coefficient and still maintaining its viscoelasticity. The partition coefficient increased to ca 8{\%} compared to negligible for potassium oleate. A gel was formed when a 20{\%} solution of potasssium 9-bromo stearate was mixed with 8{\%} KCl. Contacting this gel with hydrocarbon resulted in a loss of viscosity due to the improved solubility of the brominated compound in hydrocarbon. This facilitates the removal of the surfactants after its use as a fracturing fluid. The viscoelastic properties were demonstrated using a Bohlin rheometer. The graph of viscosity vs shear rate shows at first a shear rate independence up to a shear rate of 0.2 s-1 and then falling with shear rate typical of a viscoelastic fluid. The zero shear viscosity η0 varied from 18 Pa s to 220 Pa s whilst the shear viscosity at 100 s-1 ranged from 0.16 Pa s to 15 Pa s for surfactant concentration from 5 to 20{\%}.",
keywords = "Brominated oleate, Green chemistry, Oil and gas, Surfactants, Viscoelastic",
author = "Larry Lee and Jumat Salimon and Yarmo, {Mohd. Ambar} and Misni Misran",
year = "2010",
month = "10",
language = "English",
volume = "39",
pages = "753--760",
journal = "Sains Malaysiana",
issn = "0126-6039",
publisher = "Penerbit Universiti Kebangsaan Malaysia",
number = "5",

}

TY - JOUR

T1 - Viscoelastic properties of anionic brominated surfactants

AU - Lee, Larry

AU - Salimon, Jumat

AU - Yarmo, Mohd. Ambar

AU - Misran, Misni

PY - 2010/10

Y1 - 2010/10

N2 - The scarcity of land based oil reserves has necessitated the exploration of off shore oil. This exploration is often carried out in pristine waters and the use of green chemicals is essential to reduce environmental degradation. In the recovery of oil and gas from rocky formations, well bore fluids such as packer fluids, fracturing fluids, conformance and permeability control fluids are extensively employed. Potassium oleate as viscoelastic surfactants gives a low partition coefficient when in contact with hydrocarbon. Bromination of the oleate chain has been shown in this work to increase the partition coefficient and still maintaining its viscoelasticity. The partition coefficient increased to ca 8% compared to negligible for potassium oleate. A gel was formed when a 20% solution of potasssium 9-bromo stearate was mixed with 8% KCl. Contacting this gel with hydrocarbon resulted in a loss of viscosity due to the improved solubility of the brominated compound in hydrocarbon. This facilitates the removal of the surfactants after its use as a fracturing fluid. The viscoelastic properties were demonstrated using a Bohlin rheometer. The graph of viscosity vs shear rate shows at first a shear rate independence up to a shear rate of 0.2 s-1 and then falling with shear rate typical of a viscoelastic fluid. The zero shear viscosity η0 varied from 18 Pa s to 220 Pa s whilst the shear viscosity at 100 s-1 ranged from 0.16 Pa s to 15 Pa s for surfactant concentration from 5 to 20%.

AB - The scarcity of land based oil reserves has necessitated the exploration of off shore oil. This exploration is often carried out in pristine waters and the use of green chemicals is essential to reduce environmental degradation. In the recovery of oil and gas from rocky formations, well bore fluids such as packer fluids, fracturing fluids, conformance and permeability control fluids are extensively employed. Potassium oleate as viscoelastic surfactants gives a low partition coefficient when in contact with hydrocarbon. Bromination of the oleate chain has been shown in this work to increase the partition coefficient and still maintaining its viscoelasticity. The partition coefficient increased to ca 8% compared to negligible for potassium oleate. A gel was formed when a 20% solution of potasssium 9-bromo stearate was mixed with 8% KCl. Contacting this gel with hydrocarbon resulted in a loss of viscosity due to the improved solubility of the brominated compound in hydrocarbon. This facilitates the removal of the surfactants after its use as a fracturing fluid. The viscoelastic properties were demonstrated using a Bohlin rheometer. The graph of viscosity vs shear rate shows at first a shear rate independence up to a shear rate of 0.2 s-1 and then falling with shear rate typical of a viscoelastic fluid. The zero shear viscosity η0 varied from 18 Pa s to 220 Pa s whilst the shear viscosity at 100 s-1 ranged from 0.16 Pa s to 15 Pa s for surfactant concentration from 5 to 20%.

KW - Brominated oleate

KW - Green chemistry

KW - Oil and gas

KW - Surfactants

KW - Viscoelastic

UR - http://www.scopus.com/inward/record.url?scp=78049251798&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78049251798&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:78049251798

VL - 39

SP - 753

EP - 760

JO - Sains Malaysiana

JF - Sains Malaysiana

SN - 0126-6039

IS - 5

ER -