Results 161 to 170 of about 18,552 (210)
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Asphaltene Deposition

Canadian International Petroleum Conference, 2000
Introduction Production of heavy oils and paraffinic crude reserves often results in the deposition of organic solids, typically waxes or asphaltenes. The organic deposits can reduce the productivity of the reservoir as well as foul piping and surface equipment.
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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
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Squalene in Petroleum Asphaltenes

Science, 1981
Squalene, 2,6,10,15,19,23-hexamethyl-2,6,10,14,18,22-tetracosahexaene, a new biological marker, has been detected in various petroleum asphaltenes and their pyrolysis products. Since squalene is the most common triterpenoid in nature and the biological precursor of the important tetra- and pentacyclic triterpane markers, its detection in asphaltene ...
N, Samman   +4 more
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Investigation on the mechanism of wax deposition inhibition induced by asphaltenes and wax inhibitors

, 2021
Fei Yang   +6 more
semanticscholar   +1 more source

Electrokinetic Characterization of Asphaltenes and the Asphaltenes−Resins Interaction

Energy & Fuels, 2003
The electrophoretic mobility of asphaltene particles formed by precipitation induced by the addition of n-heptane to asphaltene solutions in toluene was measured in water and in nonpolar media. Dispersed in water, the particles presented a negative electrophoretic mobility, whereas in toluene their mobility was positive and around 2.0 × 10-9 m2/V s ...
Gaspar González   +4 more
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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   +3 more
openaire   +1 more source

Effects of waxes on hydrate behaviors in water-in-oil emulsions containing asphaltenes

, 2021
Dongxu Zhang   +6 more
semanticscholar   +1 more source

Asphaltene and asphaltene precipitation/deposition

2021
Ali Ghamartale   +3 more
openaire   +1 more source

Asphaltene Deposition: Development and Application of Polymeric Asphaltene Dispersants

Proceedings of SPE Annual Technical Conference and Exhibition, 1991
ABSTRACT Asphaltene deposition has a significant detrimental effect on oilfield production. The key to effective treatment of asphaltene deposition is recognition of the problem. Asphaltenes can be identified and quantified using laboratory methods.
S. S. Schantz, W. K. Stephenson
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Asphaltenes

2017
Oliver C. Mullins   +7 more
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