Estimation of dielectric properties of crude oils based on IR spectroscopy

Carlson, Johan E.; Tomren, Andreas Linge; Folgerø, Kjetil; Barth, Tanja

doi:10.1016/j.chemolab.2014.09.001

Cited by 8 publications

(3 citation statements)

References 17 publications

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“…In a particular case of hydrocarbon and crude oil systems, where polar interactions are week, intermolecular attractions are determined by the polarizability that can be directly related to the refractive index through the Lorentz-Lorentz equation [8]. The dielectric property has been widely used [9][10][11][12][13][14][15] to characterize crude oil for its reformation under thermal changes, the precipitation of asphaltenes with the addition of hexane, dielectric properties based on infrared spectroscopy, etc. The dielectric constant is closely related to the refractive index through Lorentz-Lorentz equations.…”

Section: Introductionmentioning

confidence: 99%

Electronic polarizability of light crude oil from optical and dielectric studies

George

Singh

2017

J. Phys.: Conf. Ser.

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In the present paper we report the temperature dependence of density, refractive indices and dielectric constant of three samples of crude oils. The API gravity number estimated from the temperature dependent density studies revealed that the three samples fall in the category of light oil. The measured data of refractive index and the density are used to evaluate the polarizability of these fluids. Molar refractive index and the molar volume are evaluated through Lorentz-Lorenz equation. The function of the refractive index, FRI, divided by the mass density, is a constant approximately equal to one-third and is invariant with temperature for all the samples. The measured values of the dielectric constant decrease linearly with increasing temperature for all the samples. The dielectric constant estimated from the refractive index measurements using Lorentz-Lorentz equation agrees well with the measured values. The results are promising since all the three measured properties complement each other and offer a simple and reliable method for estimating crude oil properties, in the absence of sufficient data.

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Section: Introductionmentioning

confidence: 99%

Electronic polarizability of light crude oil from optical and dielectric studies

George

Singh

2017

J. Phys.: Conf. Ser.

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“…When predicting the permittivity of a crude oil, either the parameters of the Cole−Cole equation or the whole spectrum can be modeled. 14 This work presents models for prediction of the Cole−Cole parameters for the permittivity spectra based on compositional analysis of crude oils. Some additional parameters that are relevant for the permittivity and flow monitoring in general are also modeled.…”

Section: Introductionmentioning

confidence: 99%

“…Permittivity of liquids is normally measured using dielectric spectroscopy, and the spectra are described by the parameters of a Cole–Cole model fitted to the dielectric spectrum. When predicting the permittivity of a crude oil, either the parameters of the Cole–Cole equation or the whole spectrum can be modeled . This work presents models for prediction of the Cole–Cole parameters for the permittivity spectra based on compositional analysis of crude oils.…”

Section: Introductionmentioning

confidence: 99%

Multivariate Analysis of Crude Oil Composition and Fluid Properties Used in Multiphase Flow Metering (MFM)

2012

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Crude oil characterization by infrared (IR) spectroscopy and whole oil gas chromatography (GC) has been used to provide data for establishing multivariate prediction models for physical properties of crude oils. The parameters of interest are used in multiphase flowmeters (MFMs) for monitoring production and transport of petroleum fluids, and permittivity parameters are of special interest. Data for 20 crude oils and condensates has been acquired and modeled using partial least squares (PLS) modeling. Good quality predictions were obtained for density, velocity of sound, and static and high frequency permittivity. Biodegradation of crude oil is the main cause of variation in the modeled variables. The data required are obtained in standard analytical procedures, and thus the approach has a considerable potential for use in on-site quality assurance.

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Flow monitoring by microwave imaging inside a cuboid cavity: Theory and numerical feasibility analysis

Alidoustaghdam

Çayören

2021

Flow Measurement and Instrumentation

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Estimation of dielectric properties of crude oils based on IR spectroscopy

Cited by 8 publications

References 17 publications

Electronic polarizability of light crude oil from optical and dielectric studies

Electronic polarizability of light crude oil from optical and dielectric studies

Multivariate Analysis of Crude Oil Composition and Fluid Properties Used in Multiphase Flow Metering (MFM)

Flow monitoring by microwave imaging inside a cuboid cavity: Theory and numerical feasibility analysis

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