Water-in-Crude Oil Emulsions from the Norwegian Continental Shelf

Skodvin, Tore; Sjöblom, Johan; Sæten, Jens Olav; Urdahl, Olav; Gestblom, Bo

doi:10.1006/jcis.1994.1269

Cited by 32 publications

(13 citation statements)

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“…In parallel we have also developed dielectric spectroscopy as a tool for prediction of destabilization processes, like flocculation and coalescence in these emulsified systems (5). However, we have in previous works focused on emulsions at rest without any shear velocities present.…”

Section: Dielectric Properties Of W/o Emulsions Under Flowmentioning

confidence: 98%

Dielectric Properties of W/O Emulsions Under Flow

Skodvin

Jakobsen

Sjöblom

1994

Journal of Dispersion Science and Technology

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Water-in-oil model emulsions with various amounts of the aqueous phase. i.e. 24 to 74 % by volume and with 4% NaCl, have been characterized by means of time domain dielectric measurements in the frequency region 50 MHz to 2 GHz. The measurements were carried out in a flow loop which made it possible to do the characterization of the emulsions both under flow and at rest. The flowing emulsions show in general lower static permittivities than the corresponding emulsions at rest. The dielectric data are explained by models involving a flocculation of the aqueous droplets. The result indicate just a small deviation from sphericity of the formed floes.

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Section: Dielectric Properties Of W/o Emulsions Under Flowmentioning

confidence: 98%

Dielectric Properties of W/O Emulsions Under Flow

Skodvin

Jakobsen

Sjöblom

1994

Journal of Dispersion Science and Technology

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“…A mylar film of 190 ent experimental techniques have been used, like interfacial mm thickness separates the electrodes and determines the tension (8,9), FT-IR (10, 11), Langmuir-Blodgett (12), cell length. dielectric spectroscopy measurements (11,13), and droplet…”

Section: Droplet Size Distribution Emulsions (5)mentioning

confidence: 99%

A Multivariate Screening Analysis of W/O Emulsions in High External Electric Fields as Studied by Means of Dielectric Time Domain Spectroscopy, II

Fördedal

Midttun

Sjöblom

et al. 1996

Journal of Colloid and Interface Science

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“…In real world systems such as low fat margarine [11] or crude oil [12] such relaxations play a major role and contribute to the unexpectedly high energy uptake of such systems. The assignment of the dielectric loss mechanism to the molecular structure in such systems is however at least unclear to us and relies on very distinct assumptions for the flocculation process.…”

Section: Introductionmentioning

confidence: 99%