Flow properties of water-in-North Sea heavy crude oil emulsions

Keleşoğlu, Serkan; Pettersen, B.H.; Sjöblom, Johan

doi:10.1016/j.petrol.2012.11.006

Cited by 67 publications

(28 citation statements)

References 18 publications

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“…1. Possibly, this kind of the rheological behavior (Newtonian or slightly thinning) is inherent to heavy oils, at least at not very low temperatures [15][16][17].…”

Section: Oil Samplementioning

confidence: 99%

Formation of concentrated emulsions in heavy oil

Malkin

Zadymova

Скворцова

et al. 2016

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…1. Possibly, this kind of the rheological behavior (Newtonian or slightly thinning) is inherent to heavy oils, at least at not very low temperatures [15][16][17].…”

Section: Oil Samplementioning

confidence: 99%

Formation of concentrated emulsions in heavy oil

Malkin

Zadymova

Скворцова

et al. 2016

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…After the emulsion added into the concentric cylinder geometry and reached the thermal equilibrium, a constant shear of 40s -1 for 60 min was applied and then viscosity vs. time curve was obtained [20] .…”

Section: Viscosity Of the Crude Oil Emulsions Without And With The Comentioning

confidence: 99%

Synthesis, Characterization, and Demulsification Behavior of Amphiphilic Dendritic Block Copolymers

Wang

Zhang

Wang

et al. 2014

Journal of Dispersion Science and Technology

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A series of Phenol-amine resin amphiphilic dendritic block copolymers were synthesized through anion polymerization. The critical micellization concentration of copolymers measured by surface tension and fluorescence spectra was a range and the range became wider with the content of polyethylene oxide decreased, while the critical aggregation concentration increased with the content of polyethylene oxide increased. The dehydration bottle tests showed that the copolymers had better water separation capability when the content of polyethylene oxide was 30 wt%. The rheological experiments showed that the addition of copolymers with 30 wt% polyethylene oxide could reduce the viscosity of crude oil emulsion mostly. Downloaded by [University of Newcastle, Australia] at 17:42 27 December 2014 2

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“…Emulsions that are used in practice normally contain an emulsifying agent (surfactant). [1][2][3][4][5] Emulsions are normally divided into two groups, namely water-in-oil or oil-in-water emulsions. Water-in-oil emulsions may be encountered at all stages in the petroleum industry such as drilling fluids, production, and transportation.…”

Section: Introductionmentioning

confidence: 99%

“…Water-in-oil emulsions may be encountered at all stages in the petroleum industry such as drilling fluids, production, and transportation. 3,6,7 These types of emulsions have viscosities that are substantially higher than crude oil. 8 On the other hand, due to their higher viscosity and lower interfacial tension, water-in-oil emulsions can be used as a cheaper alternative to polymers during different oil production operations including enhanced oil recovery (EOR) and water control.…”

Section: Introductionmentioning

confidence: 99%

Towards a mechanistic understanding of rheological behaviour of water-in-oil emulsion: Roles of nanoparticles, water volume fraction and aging time

Pajouhandeh¹,

Kavousi²,

Schaffie³

et al. 2016

S.Afr.j.chem.

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The viscosity of water-oil emulsions plays an important role in oil production and transportation. The objective of this study was to improve the basic understanding of the influence of nanoparticles on the viscosity of water-in-oil emulsions. Using crude oil and different industrial nanomaterials, the droplet size distribution, droplet mean size, and rheological models of emulsions were investigated. Experimental results show that the addition of nanoparticles increases the crude oil viscosity; however, the Newtonian flow behaviour of oil is not affected by nanoparticles. It is observed that the viscosity of crude oil increased from 36.5 to 49 cP when the nanoparticle concentration was elevated from 0 to 0.1 wt%. From the results of rheological experiments, it can be concluded that the influence of nanoparticles on the emulsion viscosity is mainly affected by the type and amount of nanoparticles, water/oil-ratio and aging time. Mean droplet diameter decreased from 5.68 to 4.11 micrometre when 0.1 wt% nanoparticles were added to emulsion. The results also suggest that the properties of stabilized water-in-oil emulsions are significantly time-dependent, and the droplet size and viscosity of emulsions is reduced by time. Most of previously published correlations have huge errors and could not precisely predict the apparent viscosities of non-solid stabilized and solid-stabilized emulsions. None of the previously utilized equations did ever consider the effect of added solids to the emulsion.

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Flow properties of water-in-North Sea heavy crude oil emulsions

Cited by 67 publications

References 18 publications

Formation of concentrated emulsions in heavy oil

Formation of concentrated emulsions in heavy oil

Synthesis, Characterization, and Demulsification Behavior of Amphiphilic Dendritic Block Copolymers

Towards a mechanistic understanding of rheological behaviour of water-in-oil emulsion: Roles of nanoparticles, water volume fraction and aging time

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