Effect of asphaltenes on the stratification phenomenon of wax-oil gel deposits formed in a new cylindrical Couette device
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- 作者：Chuanxian Li lchxian@upc.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Jinyang Cai ; Fei Yang ; yf9712220@sina.com" class="auth_mail" title="E-mail the corresponding author ; yangfei@upc.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Ying Zhang ; Fan Bai ; Yangyang Ma ; Bo Yao
- 关键词：Wax deposition ; Two-layer stratification ; Asphaltenes ; Composition ; Hardness
- 刊名：Journal of Petroleum Science and Engineering
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：140
- 期：Complete
- 页码：73-84
- 全文大小：2400 K
文摘
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Asphaltenes addition triggers the formation of a two-layer wax-oil gel deposit.
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The WAT, wax content of inner deposit layer is very high.
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The CCN of inner deposit layer is relatively high (C26+).
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The rheological property of inner deposit layer is greatly aggravated.
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Inner deposit layer is rich of asphaltenes.
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Increased asphlatenes facilitate diffusion of heavy n-alkanes into inner deposit layer.