Results 11 to 20 of about 128,750 (253)
High-Efficiency High-Temperature-Resistant Nanosilica Viscosity Reducer for Extra-Heavy Oil Viscosity Reduction [PDF]
ACS OmegaDongdong Liu +3 more
doaj +2 more sources
Energy saving in oilfields by using waste heat in the disposed water [PDF]
Chemical Industry and Chemical Engineering Quarterly, 2023 The present work aims to retrofit an existing Egyptian oilfield plant to improve desalter performance and reduce the power of crude oil shipping pumps. In this work, waste heat in disposed water that represents a value is used in heating brackish water ...
Shehata Walaa Mahmoud +2 more
doaj +1 more source
Reducing the viscosity of missan heavy crude oil using combinations of low molecular weight hydrocarbon compounds [PDF]
Al-Qadisiyah Journal for Engineering Science, 2022 This work studied the facilitation of the transportation of Missan heavy crude oil characterized with high viscosity 84.61 cp at 15 °C, low API 23.1, by reducing its viscosity from break down asphaltene agglomerates using five solvents with some novel ...
Eman M. Saasaa +2 more
doaj +1 more source
An Investigation on the Viscosity Reduction of Iranian Heavy Crude Oil through Dilution Method [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2021 An increase in the global energy demand and also the shortage of conventional crude oil resources have led to an increase in the attention to unconventional crude oil resources.
Ali Soleimani +2 more
doaj +1 more source
Indonesian Journal of Chemistry, 2020 In this study, ZnO nanoparticles were synthesized using a sol-gel method for oil upgrading and wax deposition control. The synthesized ZnO nanoparticles were used to measure viscosity and wax deposition in the heavy crude oil and to investigate the ...
Siti Nurliyana Che Mohamed Hussein +2 more
doaj +1 more source
Fluids, 2022 Heavy-oil mobility in reservoir rocks can be improved, using nanotechnology, by reducing the viscosity of the oil and improving the rock wettability to a water-wet condition.
Juan D. Valencia +3 more
doaj +1 more source
Drag reduction by a linear viscosity profile [PDF]
Physical Review E, 2004 Drag reduction by polymers in turbulent flows raises an apparent contradiction: the stretching of the polymers must increase the viscosity, so why is the drag reduced? A recent theory proposed that drag reduction in agreement with experiments is consistent with the effective viscosity growing linearly with the distance from the wall.
DE ANGELIS, ELISABETTA +5 more
openaire +4 more sources
Experimental study on the enhanced oil recovery by in situ foam formulation
Energy Science & Engineering, 2020 In situ CO2 foams (ISCF) are studied systematically by combining in situ CO2 gas reactants (carbonate anhydrous, hydrochloric acid) and bio‐based surfactant. Sandpack flooding experiments at 60°C along with PVT experiments were carried out to analyze the
Hailong Chen +5 more
doaj +1 more source
Application of CO2-Switchable Oleic-Acid-Based Surfactant for Reducing Viscosity of Heavy Oil
Molecules, 2021 CO2-switchable oligomeric surfactants have good viscosity-reducing properties; however, the complex synthesis of surfactants limits their application. In this study, a CO2-switchable “pseudo”-tetrameric surfactant oleic acid (OA)/cyclic polyamine (cyclen)
Lulu Liu +5 more
doaj +1 more source
Heat Transfer and Flow of a Gel Fuel in Corrugated Channels
Energies, 2022 For propulsion systems using gel fuels, reducing the gel fuel viscosity is essential for achieving better atomization and combustion. In this paper, we investigate the flow and heat transfer in a water-gel with a temperature and shear dependent viscosity.
Hao Zhou +5 more
doaj +1 more source