Results 161 to 170 of about 7,502 (225)

Effects of asphaltene concentration and asphaltene agglomeration on viscosity

Fuel, 2019
Abstract Asphalenes are regarded as the most polar and heaviest components in crude oil system. Their precipitation and agglomeration cause problems in oil recovery, production, and transportation. Asphaltenes are directly responsible for determining the viscosity of crude oil.
Xingxun Li, Xuqiang Guo
exaly   +2 more sources

ADSORPTION OF ASPHALTENE FUNTIONALITIES AND ASPHALTENE ON GOETHTTE

Fuel Science and Technology International, 1995
ABSTRACT Solid-stabilized water-in-oil emulsions cause many problems such as oil loss, fouling of a processing unit, and environmental hazard in the petroleum production and refining. The ability of finely divided solids to stabilize these emulsions is due to the adsorption of asphaltenes and other heavy constituents. This study presents the individual
Young W. Jeon, Sug H. Yi, Sang J. Choi
openaire   +1 more source

The Asphaltenes

Annual Review of Analytical Chemistry, 2011
Asphaltenes, the most aromatic of the heaviest components of crude oil, are critical to all aspects of petroleum utilization, including reservoir characterization, production, transportation, refining, upgrading, paving, and coating materials. The asphaltenes, which are solid, have or impart crucial and often deleterious attributes in fluids such as ...
openaire   +2 more sources

Study on inhibition behaviors of asphaltene inhibitor to asphaltene aggregations

Journal of Dispersion Science and Technology, 2021
The changes in the stability of asphaltene in crude oil will give rise to its aggregation, coalescence and deposition from crude oil.
Zengmin Lun   +5 more
openaire   +1 more source

Solution Properties of Asphaltenes

Langmuir, 2008
Ultracentrifugation has been used to produce asphaltene fractions of reduced polydispersity. The structure of these asphaltene fraction solutions has been investigated using viscosity and X-ray scattering (SAXS) measurements as a function of concentration.
Loïc, Barré   +2 more
openaire   +2 more sources

Asphaltene Cake Properties

Energy & Fuels, 2008
One of the major problems encountered during the exploitation of the oil reservoir is the deposition of asphaltene in the porous rock near the wellbore. The crude oil asphaltene considerably reduces the rock permeability and, consequently, the oil production.
Montel, Valérie   +3 more
openaire   +2 more sources

Interfacial behavior of asphaltenes

Advances in Colloid and Interface Science, 2016
We review the existing literature on asphaltenes at various types of interfaces: oil-water, air-water, gas-oil and solid-liquid, with more emphasis on the oil-water interfaces. We address the role of asphaltene aggregation, recently clarified for asphaltenes in bulk by the Yen-Mullins model.
Dominique, Langevin   +1 more
openaire   +2 more sources

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