Results 31 to 40 of about 22,271 (251)
Asphaltenes at Oil/Gas Interfaces: Foamability Even with No Significant Surface Activity
Colloids and Interfaces, 2018 In the oil industry, oil foams can be found at different steps from the crude oil treatment to the gas stations. Their lifetime can sometimes reach several hours and be much longer than the residence times available for gas/liquid separation.
Mélanie Arangalage +4 more
doaj +1 more source
Characterisation of an algerian asphaltene by 1H and 13C CPMAS NMR, DEPT and ESI mass spectroscopy
Egyptian Journal of Petroleum, 2021 Quantitative liquid 1H and solid 13C CPMAS NMR spectroscopy were used in combination with qualitative DEPT (Distortionless Enhancement by Polarization Transfer) and liquid 13C NMR to investigate the molecular structural parameters of an Algerian ...
A.C. Djendara +4 more
doaj +1 more source
Examining Asphaltene Solubility on Deposition in Model Porous Media [PDF]
, 2016 Asphaltenes are known to cause severe flow assurance problems in the near-wellbore region of oil reservoirs. Understanding the mechanism of asphaltene deposition in porous media is of great significance for the development of accurate numerical ...
Biswal, S. L. +8 more
core +1 more source
Medium dependence of asphaltene agglomeration inhibitor efficiency
, 2007 Applying chemical additives (molecule inhibitors or dispersants) is one of the common ways to control asphaltene agglomeration and precipitation. However, it is not clear why at some conditions the synthetic flocculation inhibitors as well as resins not ...
Barcenas, Mariana +4 more
core +1 more source
Analysis of magnetic treatment of production fluid with high content of asphalt-resin-paraffin deposits [PDF]
, 2017 Purpose. Justification of magnetic field application in order to prevent formation of asphalt-resin-paraffin deposits (ARPD) in oil and gas equipment, and consider some current views on the state of ARPD problem in oilfield equipment and possible methods
Kharchenko, M +3 more
core +2 more sources
Deposition of colloidal asphaltene in capillary flow: Experiments and mesoscopic simulations [PDF]
, 2008 The aggregation and deposition of colloidal asphaltene in reservoir rock is a significant problem in the oil industry. To obtain a fundamental understanding of this phenomenon, we have studied the deposition and aggregation of colloidal asphaltene in ...
Boek, ES +3 more
core +2 more sources
Scientific Reports, 2023 Asphaltene precipitation and its adsorption on different surfaces are challenging topics in the upstream and downstream of the oil industries and the environment.
Sajjad Ansari +6 more
doaj +1 more source
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT The present work systematically compares the performance differences between two novel homologous materials employed as co‐carbonization agents in the synthesis of mesophase pitch. Low‐cost FCC slurry was used as the raw material, with bio‐tar (BT) and bio‐tar pitch (BTP) as co‐carbonization agents.
Mingzhi Wang, Xiaolong Zhou
wiley +1 more source
Oil & Gas Science and Technology, 2016 Asphaltenes are shown to be amphoteric, containing acidic and basic species that can ionize at low and high pH respectively when they come in contact with water.
Hutin Anthony +2 more
doaj +1 more source
The Viscosity of Asphaltene- Containing Oil [PDF]
, 2011 Imperial Users ...
Odubanjo, Oluwateleola +1 more
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