Oilfield Emulsions

emuslionpicsUnwanted 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 CO2 for emulsion droplet disruption and encouraged coalescence.

Publications

Journal

By-line NMR emulsion droplet sizing

NNA Ling, A Haber, EF May, EO Fridjonsson, ML Johns
Chemical Engineering Science 160, 362–369
Reference Link

2017
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, 229–237
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), 5555–5562
Reference Link

2016
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), 7948–7955
Reference Link

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, 110–126
Reference Link

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, 244–251
Reference Link

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, 392–400
Reference Link

2015
Journal

Hydrate Shell Growth Measured Using NMR

A Haber, M Akhfash, CK Loh, ZM Aman, EO Fridjonsson, EF May, ML Johns
Langmuir 31, 8786–8794
Reference Link

2015
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, 1756–1764
Reference Link

2014
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, 358–365
Reference Link

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, 125–137
Reference Link

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, 97–102
Reference Link

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, 147–156
Reference Link

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, 281–288
Reference Link

2012
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, 2961–2967
Reference Link

2011