Petroleum Resins: Separation, Character, and Role in Petroleum

Andersen, Simon Ivar; Speight, James G.

doi:10.1081/lft-100001223

Cited by 195 publications

(140 citation statements)

References 52 publications

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“…is its vaporisation enthalpy, v m its molar volume, T the temperature and R the perfect gas constant. Several methods are available to determine the solubility parameter of a constituent (Andersen and Speight, 2001). This parameter…”

Section: The Solubility Parametermentioning

confidence: 99%

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Characterisation of Asphaltenes and Modelling of Flocculation – State of the Art

Pina¹,

Mougin²,

Béhar³

2006

Oil & Gas Science and Technology - Rev. IFP

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Résumé -Caractérisation des asphaltènes et modélisation de la floculation -État de l'Art -Ce travail présente un état de l'art concernant la floculation des asphaltènes avec deux grands items : la caractérisation des asphaltènes dans différents milieux et la modélisation de la floculation. Cette revue commence par une caractérisation des asphaltènes proprement dite puis des caractérisations de ces derniers dans des solvants synthétiques ou des bruts. Nous insistons sur les techniques de détermination de masses molaires et de diffraction. L'incidence d'un ajout de bon/mauvais solvant est également discutée. La seconde partie de cette revue concerne la modélisation de la floculation. Elle examine les différents modèles de la littérature avant de présenter celui de Szewczyk et Béhar (1999) et son intégration dans un simulateur de réservoir. Les modèles disponibles requièrent encore des données expérimentales délicates à acquérir et un effort de recherche doit être réalisé pour améliorer cet état de fait. Abstract -Characterisation of Asphaltenes and Modelling of Flocculation -State of the Art -This document describes a state of the art concerning the flocculation of asphaltenes with two major sections: characterisation of asphaltenes in various environments and modelling of flocculation. This review starts with the characterisation of asphaltenes as such, then their characterisation in synthetic solvents or crudes. Emphasis is placed on molar mass determination and diffraction techniques. The impact of adding a good/poor solvent is also discussed. The second part of this review is dedicated to modelling.We first examine the various models in the literature before describing the Szewczyk and Béhar (1999) model and its integration in a reservoir simulator. The models available still require experimental data which is difficult to collect and further research is needed to improve this situation.Petroleum Industry Applications of Thermodynamics Applications de la thermodynamique dans l'industrie pétrolière

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Section: The Solubility Parametermentioning

confidence: 99%

“…The de-asphalted oil is known as maltenes and contains resins, considered to be the peptising agents of asphaltenes (Koots and Speight, 1975;Swanson, 1942). The resins can also be separated from the maltenes by adsorption (Andersen and Speight, 2001).…”

Section: Introductionmentioning

confidence: 99%

Characterisation of Asphaltenes and Modelling of Flocculation – State of the Art

Pina¹,

Mougin²,

Béhar³

2006

Oil & Gas Science and Technology - Rev. IFP

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“…It consists of two fractions, heavy oils and resins [2-6, [12][13][14][15][16][17][18]. These oils are the liquid part of the asphalt and consist of normal-, iso-and cyclo-paraffins and condensed naphthenes with some alkyl aromatics.…”

Section: Heavy Oilsmentioning

confidence: 99%

Certain Relationships between Chemical Composition and Properties of Petroleum Asphalts from Different Origin

Oyekunle¹

2006

Oil & Gas Science and Technology - Rev. IFP

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Résumé -Des relations entre la composition chimique et les propriétés de bitumes d'origines différentes -Les bitumes sont habituellement classés selon trois propriétés physiques : ductilité, pénétration et point de ramollissement. L'étude présentée ici démontre à travers plusieurs exemples que ces traits physiques ne sont pas assez distinctifs. Il a été découvert que la composition chimique apporte davantage d'enseignements sur les différentes propriétés physiques des bitumes. On note des différences remarquables entre la composition chimique de bitumes de même point de ramollissement et de même origine. Une plus grande ductilité provient d'une plus forte teneur en résines alors qu'une pénétration moindre est la conséquence d'une plus grande teneur en asphaltènes. La corrélation de deux indices et de la composition de bitumes révèle que l'indice Gaestël (1 c ) est un meilleur paramètre de caractérisation de bitumes que l'indice d'asphaltène (1 A ). Ces deux indices peuvent être utilisés comparativement pour distinguer des bitumes ayant des points de ramollissement voisins. Abstract -Certain Relationships between Chemical Composition and Properties of Petroleum

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“…Stability of asphaltene in crude oil depends upon a variety of factors (temperature, pressure, composition, pH, etc. ) of which resin content in oil is attributed to have the greatest influence (Andersen and Speight 2001). It is an established fact that petroleum resins with lesser aromaticity but higher polarity compared with asphaltene act as peptizing agents and help stabilizing asphaltene-resin colloids.…”

Section: Introductionmentioning

confidence: 99%

Dynamic asphaltene deposition control in pipe flow through the application of DC potential

Hashmi

Ghosh

2014

J Petrol Explor Prod Technol

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Asphaltene-resin moieties in crude oil are found to carry residual surface electric charge, which is characteristics to their colloidal structure, asphaltene-resin ratio and system pH. This research investigated the possibilities of controlling asphaltene deposition in oil well by applying static electrical potential taking advantage of their residual surface charge. Laboratory experiments were conducted at static and also in dynamic condition constructing a dual flow loop set-up, equipped with precision pumping, pressure recording and regulated DC power supply. Neat and heptane-diluted crude oil having inherent asphaltene deposition tendencies is used to investigate the influence of DC electrical potential on asphaltene deposition tendencies. Real time deposition trend is interpreted through differential pressure build-up across the flow loops and also through quantitative estimation of deposited mass. The results were encouraging, showing up to 180 % reduction in asphaltene deposition in the cathode loop and about 140 % increase on the anode loop at an optimised potential of 60 V DC. Further, it was observed that higher the n-heptane dilution, higher is the effect of static potential in terms of arresting deposition. Based on these optimistic results, further studies and upscaling are planned (considering the changes of pressure, temperature and fluid composition in an oil well) and looking at the possibilities of controlling asphaltene deposition, by converting the well into a cathode, along with a nearby sacrificing anode well, applying optimum electrical potential.

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Petroleum Resins: Separation, Character, and Role in Petroleum

Cited by 195 publications

References 52 publications

Characterisation of Asphaltenes and Modelling of Flocculation – State of the Art

Characterisation of Asphaltenes and Modelling of Flocculation – State of the Art

Certain Relationships between Chemical Composition and Properties of Petroleum Asphalts from Different Origin

Dynamic asphaltene deposition control in pipe flow through the application of DC potential

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