Interfacial Properties of Asphaltenes at the Heptol-Brine Interface

Chuntian Hu, Nicole C. Garcia, Rongzuo Xu, Tran Cao, Andrew Yen, Susan A. Garner, Jose M. Macias, Nikhil Joshi, Ryan Hartman

Research output: Contribution to journalArticle

Abstract

Water-oil emulsion is inevitable in the production of crude oil. Understanding the role of asphaltenes at the Heptol (mixture of n-heptane and toluene)-brine interface is of significant importance to deal with oil lost and the waste disposal. The effect of asphaltene concentration on the interfacial tension at the Heptol-brine interface at various times and temperatures (25.0-85.0 °C), as well as in the presence or absence of hydrophobic or hydrophilic silica particles, was tested using a Tracker tensiometer. A transparent quartz packed-bed microreactor with in-line analytics was designed to test the emulsion block in porous media. Experimental results show that the presence of asphaltenes and large hydrophobic inorganic particles in Heptol could stabilize the water in oil emulsions. The results could aid in the design of remediation to improve water displacement of crude oil in sandstone reservoirs and enhance the crude oil recovery.

Original languageEnglish (US)
Pages (from-to)80-87
Number of pages8
JournalEnergy and Fuels
Volume30
Issue number1
DOIs
StatePublished - Jan 21 2016

Fingerprint

Asphaltenes
Petroleum
Toluene
Heptane
Emulsions
Oils
Crude oil
Water
Quartz
Petroleum reservoirs
Packed beds
Sandstone
Remediation
Waste disposal
Silicon Dioxide
Surface tension
Porous materials
Silica
Recovery
n-heptane

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Energy Engineering and Power Technology
  • Fuel Technology

Cite this

Interfacial Properties of Asphaltenes at the Heptol-Brine Interface. / Hu, Chuntian; Garcia, Nicole C.; Xu, Rongzuo; Cao, Tran; Yen, Andrew; Garner, Susan A.; Macias, Jose M.; Joshi, Nikhil; Hartman, Ryan.

In: Energy and Fuels, Vol. 30, No. 1, 21.01.2016, p. 80-87.

Research output: Contribution to journalArticle

Hu, C, Garcia, NC, Xu, R, Cao, T, Yen, A, Garner, SA, Macias, JM, Joshi, N & Hartman, R 2016, 'Interfacial Properties of Asphaltenes at the Heptol-Brine Interface', Energy and Fuels, vol. 30, no. 1, pp. 80-87. https://doi.org/10.1021/acs.energyfuels.5b01855
Hu, Chuntian ; Garcia, Nicole C. ; Xu, Rongzuo ; Cao, Tran ; Yen, Andrew ; Garner, Susan A. ; Macias, Jose M. ; Joshi, Nikhil ; Hartman, Ryan. / Interfacial Properties of Asphaltenes at the Heptol-Brine Interface. In: Energy and Fuels. 2016 ; Vol. 30, No. 1. pp. 80-87.
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