期刊
FUEL
卷 288, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2020.119644
关键词
Crude oil; Flow improver; Viscosity reduction; Alkylbenzenesulfonates
资金
- Youth Innovation Team of Shaanxi University
- National Natural Science Foundation of China [51974252]
- Natural Science Basic Research Plan in Shaanxi Province of China [2020JQ-775]
- Postgraduate Innovation Fund Project of Xi'an Shiyou University [YC19113078]
The study found that chromium alkylbenzenesulfonate and zinc alkylbenzenesulfonate are the most effective crude oil flow improvers, significantly reducing the viscosity and pour point of the crude oil, with promising application potential in enhancing heavy oil recovery.
Small molecule flow improver for heavy oil recovery has attracted great attention in oilfield chemistry. In this study, 24 alkylbenzenesulfonates were synthesized and evaluated as crude oil flow improvers. The results show that all of the alkylbenzenesulfonates were effective, the chromium alkylbenzenesulfonate (CrDBS) and zinc alkylbenzenesulfonate (ZnDBS) were found to have the best performance with the viscosity reduction rate of higher than 90%. Besides, the CrDBS and ZnDBS can depress the pour point of the crude oil sample by 21.0 degrees C and 16.0 degrees C, respectively. The co-crystallization of alkylbenzenesulfonate with the saturated hydrocarbons in the crude oil could disorder the wax crystals and depress the pour point. In addition, DSC was used to reveal the mechanism of viscosity reduction and pour point depressing by alkylbenzenesulfonates. The flow improver can disturb the formation of hydrogen bonds and the pi-pi interaction bonds among the polycyclic aromatic hydrocarbons and the resin macromolecules. Besides, the field test using ZnDBS confirmed its good performance and promising application potential in enhancing the heavy oil recovery.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据