Determination of asphaltene precipitation using a CPA equation of state

被引：0
|
作者：
Talavaki, Mohammadbagher Zare [1 ]
Afsharpour, Alireza [2 ]
Taherian, Zeinab [3 ]
机构：
[1] Islamic Azad Univ, Sari Branch, Young Researchers & Elite Club, Sari, Iran
[2] Islamic Azad Univ, Qazvin Branch, Young Researchers & Elite Club, Qazvin, Iran
[3] Tarbiat Modares Univ, Dept Chem Engn, Tehran, Iran
来源：
PETROLEUM SCIENCE AND TECHNOLOGY | 2017年 / 35卷 / 09期
关键词：
Asphaltene precipitation; attractive term; CPA equation of state; modeling; thermodynamic; PHASE-BEHAVIOR; PREDICTION; OIL;
D O I：
10.1080/10916466.2016.1278387
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Asphaltene precipitation during natural depletion and miscible gas injection is a common problem in oilfields throughout the world. Therefore, predicting asphaltene phase behavior through thermodynamic modeling may help to control its precipitation and reduce the associated problems. In this work, a new modified CPA equation of state (EoS) was used to model asphaltene precipitation. This equation is based on a combination of a new physical part and the Wertheim association term.The results of the new model were compared with the experimental data of five oil samples. The results showed that this modified CPA EoS can predict asphaltene precipitation with good accuracy.
引用
收藏
页码：839 / 844
页数：6
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