Author:
Akhmadiyarov A A,Petrov A A,Rakipov I T,Varfolomeev M A
Abstract
Abstract
Influence of pressure, temperature and the nature of gas on the viscosity of heavy crude oil from the Tatarstan field was studied using rheology method (rheometer MCR 302). The effect of temperature from 25 to 125 °C and pressure from 0.1 to 12.5 MPa on crude oil viscosity was investigated. It was found that an increase in temperature of 125 °C leads to a decrease of viscosity by 8 times. At the same time, an increase of pressure up to 10 MPa leads to an increase in viscosity by 38% at low temperatures. Also the influence of the nature of gas (nitrogen, argon and air) on the viscosity of crude oil at different temperatures and pressures was analyzed. It is shown that crude oil viscosities depend on gas composition. On the other hand, the influence of the composition of binary gas mixtures in a wide range of temperatures and pressures on the viscosity of heavy oil has been studied. The activation energies of flow are calculated for two types of gas mixture. It is shown that the gas phase at different ratios of the components does not significantly affect the rheological parameters of crude oil.
Reference15 articles.
1. Biological activity in the deep subsurface and the origin of heavy oil;Head;Nature,2003
2. Heavy oil and natural bitumen resources in geological basins of the world;Myer;U.S. Geological Survey Open-File Report,2007
3. Nanoparticle stablized CO2 in water foam for mobility control in enhanced oil recovery via microfluidic method Society of Petroleum;Nguyen,2014
4. Foam assisted CO2-EOR: A review of concept, challenges, and future;Talebian;prospects J. Petrol Sci. Eng.,2014
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献