Process for the preparation of two or more types of base oil, engine oil, car passenger, base oil, and use of the oil base.Process for the preparation of two or more types of base oil, base oil, these types have different kinematic viscosities 100 < 198 > C,From a waxy paraffinic ...
aThe temperature dependence of the viscosity of a lubricant is typically characterized by the viscosity index (VI).1 The VI is determined using a standard method (ASTM D-2270) in which the kinematic viscosity of an oil at 40 and 100 °C is compared against the viscosities of two reference ...
Capillary pressures between oil and water in rock pores are responsible for trapping oil, and the height of oil column, zo, in a reservoir may be calculated from the Hobson equation modified as follows: [EQUATION] where ^ggr is the inter... RR Berg - 《Aapg Bulletin》 被引量: 44发表:...
Most of the piping systems in the oil and gas, chemical, and process industries are subjected to two-phase flow, especially liquid and gas. Based on the diameter and inclination of the pipe, and liquid and gas flow rates, various types of flow regimes occur in the pipe. One can find th...
On the other hand, the vapor and liquid kinematic viscosities of R290 are noticeably higher the remaining fluids. These are the reasons why highest shear stress and FPD values are observed during R290 condensation. A similar argument can be presented to justify the higher condensation FPD of R32...
On the other hand, the vapor and liquid kinematic viscosities of R290 are noticeably higher the remaining fluids. These are the reasons why highest shear stress and FPD values are observed during R290 condensation. A similar argument can be presented to justify the higher condensation FPD of R32...
Here subscripts o and w refer to oil and water phases, λt is the total mobility, with λt=λo+λw, where λo=kro/μo and λw=krw/μw, kro and krw are relative permeability to the oil and water phases respectively, and μo and μw are phase viscosities. Additional variables are...
1.3. Two-phase flow modelling coupled with equation of state For predicting phase behavior of near critical fluid systems such as gas condensate and volatile oil, phase equilibrium calculations are required (Sutton and Farshad, 1983; Fevang et al., 2000). Using correlations for predicting PVT pr...
Oil reservoirs, especially in the deepwater sea, are found in extreme conditions of pressure and, during the fluid flow inside the pipelines, the fluid temperature may decrease due to heat transfer to the surrounding (seawater) and phase change, tending to deposit solid particles on the pipeline...
NMR self-diffusion and relaxation, coupled with viscosity, were used to study the properties and structure of two imidazolium-based ionic liquids, 1-ethyl-3-methylimidazolium acetate [C2MIM][OAc] and 1-ethyl-3-methylimidazolium octanoate [C2MIM][OOct]. T