The objective of this study was to investigate the rheological properties of the light crude oil and its emulsions in order to obtain more knowledge about the rheological behavior of oil flow in pipelines. The experiments were carried out at a temperature of 20 °C by using the RS600 RheoStress (ThermoHaake, Germany). The results showed that the viscosity of the prepared emulsions varied with their water contents. In the case of 100% light crude oil, the study of the functional relationship demonstrated the quasi- Newtonian behavior with a moderate constant viscosity. However, for emulsions with different water concentrations, their rheological behaviors were described in better way by the Ostwald de Waele and the Herschel-Bulkley models. The stability of emulsions was identified by measuring the rheological properties including non-Newtonian viscosity, the elastic modulus, (G'), the loss modulus, (G"), the phase angle (δ) and the complex viscosity (ν*). The results indicated that the rheological properties and the physical stability of emulsions were significantly influenced by the water contents and the nature of crude oils.
Investigating the rheological properties of light crude oil and the characteristics of its emulsions in order to improve pipeline flow
Fuel ; 95 ; 97-107
2012
11 Seiten, 15 Bilder, 2 Tabellen, 27 Quellen
Article (Journal)
English
Some interesting flow characteristics of a heavy crude pipeline
Tema Archive | 2007
|Flow properties of Heavy Crude Oils and their Emulsions Using a Novel Surfactant
British Library Conference Proceedings | 1999
|Investigating the Characteristics of Wet Shotcrete Pipeline Transportation
Springer Verlag | 2022
|Rheological characterization of lubricant-methanol-water emulsions
Tema Archive | 1992
|