Procedia ChemistryLOSKUTOVAYU V A,YADREVSKAYA N N B,YUDINA N VA,et al. Study of viscosity-temperature properties of oil andgas-condensate mixtures in critical temperature ranges of phasetransitions procedia[J].Chemistry,2014,10:343-348.
It is also realized that as the asphaltene content decreases below a certain value (as API increases) temperature dependency of viscosity becomes weaker compared to heavier oils can be seen whenFig. 1a (API<20) andFig. 1b (API>20) are compared in terms of the slopes. Therefore, the logar...
(2) Viscosity. Viscosity (η) is the measure of the internal resistance of an oil against the free flow of a liquid to the frictional forces between the layers of fluids that move over each other at different speeds. It is considered an important property that allows vegetable oils to be ...
and the need for quality assurance of CPO. A kinetic model that describes changes of free fatty acid (FFA) in industrially stored CPO has been developed. CPO FFA is a well-known indicator of the deterioration of CPO. The effect of initial moisture content, storage temperature, and time ...
The Emkarate RL products ensure excellent refrigerant/lubricant solubility, optimum viscosity and lubrication performance across the extreme pressure-temperature ranges encountered in today's compressor systems. The Emkarate RL product line has proven performance with over 500...
Viscosity calculates the viscosity of brine using salinity (or TDS) and oil at the desired pressure and temperature using physical properties of oil (i.e., oil density, dissolved gas-oil ratio, and bubble point pressure), PhaseEql is a function of phase equilibrium calculations using Peng-Robin...
MR-21 and MR 12 are cement retarders used in medium temperature ranges for oilfield cementing operations, whereas MR-21L is the liquid version of MR 21 cement retarder. MR-32 is a high temperature retarder used in bottom hole circulating temperatures up to 350 °F (176.6 °C)...
2,4-7 While Kisler and Shallcross have reported that the light (40.2°API) Australian oil which they studied exhibited at least three temperature ranges over which localized maxima in the oxygen uptake rate were observed, the majority of heavy oils for which oxidation data have been reported ...
).Oil viscosityranges between 500 and 50,000 kPa and thereservoir temperatureranges from 20 to 30 ColdHeavy Oil Productionwith Sand (CHOPS) has been successfully implemented in many of these reservoirs, particularly since mid-1980s with the large scale implementation of progressing cavity pumps with...