作者
Edris Joonaki, Aliakbar Hassanpouryouzband, Rod Burgass, Alfred Hase, Bahman Tohidi
发表日期
2020/3/23
期刊
ACS omega
卷号
5
期号
13
页码范围
7124-7134
出版商
American Chemical Society
简介
Solid deposition during production, transport, and storage of crude oils leads to significant technical problems and economic losses for the oil and gas industry. The thermodynamic equilibrium between high-molecular-weight components of crude oil, such as asphaltenes, resins, and waxes, is an important parameter for the stability of crude oil. Once the equilibrium is disturbed due to variations in temperature, pressure, and oil composition during production, the solubility of high-molecular-weight waxes decreases. This results in a decrease in the wax appearance temperature (WAT) and the deposit of wax onto solid surfaces. On the other hand, under these conditions, asphaltenes do not interact sufficiently with the resins/waxes and tend to flocculate among themselves and form asphaltene nanoaggregates. The role of waxes during the asphaltene aggregation and deposition has not been appropriately explained …
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E Joonaki, A Hassanpouryouzband, R Burgass… - ACS omega, 2020