Oilfield Emulsions

Unwanted emulsions of (crude) oil and water are frequently encountered during oil production across the world including in Western Australia, which is now Australia’s main liquid fuel provider.

Such emulsions add significantly to operating (e.g. pumping) and capital (e.g. processing vessel size) costs, accentuate corrosion and generally adversely affect product quality. Essential to processes that break such emulsions (i.e. separate the water and oil phases) is real-time measurement of the emulsion droplet-size distribution. Using our unique Nuclear Magnetic Resonance (NMR) instrumentation for on-line emulsion droplet sizing, our aim is to develop cheap and robust methods including: oil-water gravity separation units with the inclusion of a water recycle for emulsion inversion (crude oil-in-water emulsions are much easier to break than water-in-crude oil emulsions); extraction of naturally occurring resins from crude oil that have been proven to significantly reduce emulsion strength; and use of carbon dioxide for emulsion droplet disruption and encouraged coalescence.

Publications

2017

Journal

By-line NMR emulsion droplet sizing

NNA Ling, A Haber, EF May, EO Fridjonsson, ML Johns

Chemical Engineering Science 160, p362 - 369

Reference link

2017

Journal

By-line NMR Emulsion Droplet Sizing

NNA Ling, A Haber, EF May, EO Fridjonsson, ML Johns

Chemical Engineering Science

Reference link

2017

Journal

By-line NMR emulsion droplet sizing

NNA Ling, A Haber, EF May, EO Fridjonsson, ML Johns

Chemical Engineering Science

Reference link

2016

Journal

NMR Studies of the Effect of CO2 on Oilfield Emulsion Stability

NNA Ling, A Haber, TJ Hughes, BF Graham, EF May, EO Fridjonsson, ML Johns

Energy & Fuels 30 (7), p5555 - 5562

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2016

Journal

Shear-induced emulsion droplet diffusion studies using NMR

NNA Ling, A Haber, EO Fridjonsson, EF May, ML Johns

Journal of Colloid and Interface Science 464, p229 - 237

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2015

Journal

Effect of Brine Salinity on the Stability of Hydrate-in-Oil Dispersions and Water-in-Oil Emulsions

ZM Aman, A Haber, NNA Ling, A Thornton, ML Johns, EF May

Energy & Fuels 29 (12), p7948 - 7955

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2015

Journal

High-pressure visual experimental studies of oil-in-water dispersion droplet size

ZM Aman, CB Paris, EF May, ML Johns, D Lindo-Atichati

Chemical Engineering Science 127, p392 - 400

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2015

Journal

Hydrate Shell Growth Measured Using NMR

A Haber, M Akhfash, CK Loh, ZM Aman, EO Fridjonsson, EF May, ML Johns

Langmuir 31, p8786 - 8794

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2015

Journal

Intercomparison of oil spill prediction models for accidental blowout scenarios with and without subsea chemical dispersant injection

SA Socolofsky, EE Adams, MC Boufadel, ZM Aman, Ø Johansen, WJ Konkel, D Lindo, MN Madsen, EW North, CB Paris, D Rasmussen, M Reed, P Rønningen, LH Sim, T Uhrenholdt, KG Anderson, C Cooper, TJ Nedwed

Marine Pollution Bulletin 96, p110 - 126

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2015

Journal

NMR studies of emulsion microstructure approaching the phase inversion point

NNA Ling, A Haber, EF May, EO Fridjonsson, ML Johns

Colloids and Surfaces A: Physicochemical and Engineering Aspects 2014, p244 - 251

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2014

Journal

Optimized Droplet Sizing of Water-in-Crude Oil Emulsions Using Nuclear Magnetic Resonance

EO Fridjonsson, BF Graham, M Akhfash, EF May, ML Johns

Energy & Fuels 28, p1756 - 1764

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2012

Journal

Determination of mean droplet sizes of water-in-oil emulsions using an Earth’s field NMR instrument

EO Fridjonsson, LS Flux, ML Johns

Journal of Magnetic Resonance 221, p97 - 102

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2012

Journal

Emulsion droplet sizing using low-field NMR with chemical shift resolution and the block gradient pulse method

IA Lingwood, TC Chandrasekera, J Kolz, EO Fridjonsson, ML Johns

Journal of Magnetic Resonance 214, p281 - 288

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2012

Journal

Microfluidic preparation and self diffusion PFG-NMR analysis of monodisperse water-in-oil-in-water double emulsions

E Hughes, AA Maan, S Acquistapace, A Burbidge, ML Johns, et al.

Journal of Colloid and Interface Science 389, p147 - 156

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2012

Journal

Quantification of porous microstructures in partially frozen drops using magnetic resonance techniques

R Thowig, JP Hindmarsh, EO Fridjonsson, DI Wilson, ML Johns

Colloids and Surfaces A: Physicochemical and Engineering Aspects 415, p358 - 365

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2012

Journal

The experimental measurement and modelling of sedimentation and creaming for glycerol/biodiesel droplet dispersions

A Abeynaike, AJ Sederman, Y Khan, ML Johns, JF Davidson, MR Mackley

Chemical Engineering Science 79, p125 - 137

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2011

Journal

Imaging the effects of peptide bio-surfactants on droplet deformation in a Taylor–Couette shear cell

EO Fridjonsson, TC Chandrasekera, AJ Sederman, ML Johns, C Zhao, APJ Middelberg

Royal Society of Chemistry 7, p2961 - 2967

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