شماره ركورد كنفرانس :
4518
عنوان مقاله :
Effect of the Residence Time and Temperature on Asphaltene Deposition during CO2 gas Injection at Static Conditions
Author/Authors :
M Amini Department of Chemical Engineering - Semnan University , M Nasiri Zarandi Petroleum research center- Department of chemical engineering - Sahand University of Technology , A Tabatabaenejhad Petroleum research center- Department of chemical engineering - Sahand University of Technology , E Khodapanah Petroleum research center- Department of chemical engineering - Sahand University of Technology
كليدواژه :
Temperature , Asphaltene , Residence time , CO2 injection
عنوان كنفرانس :
The 7th International Chemical Engineering Congress & Exhibition (IChEC 2011
چكيده لاتين :
Asphaltenes are the heaviest constituents and most polar molecules in crude oil . Asphaltene deposition in reservoir , surface facilities and tubing can cause major problems during oil production , transportation and processing .
Changes in reservoir parameters such as pressure, temperature and composition may cause asphaltene deposition from the crude oil. Therefore asphaltene can deposit during pressure, temperature and composition changes. Gas injection particularly CO2 gas, that is regarded as one of the most efficient methods of oil development, because of thermodynamic condition changes may cause asphaltene deposition which seriously influences production.
This paper describes the effect of residence time and temperature on asphaltene deposition during CO2 gas injection to two Iranian oil samples(Ahwaz and Paydarshargh oil).
The amount of asphaltene precipitation in the mixture of oil and CO2 gas was measured by using filtration . Then the experimental results were plotted as a graph and were accompanied with SEM images.
