Effect of a novel type of water-in-oil nanocomposite viscosity improver on rheological properties of crude oil

被引：0
|
作者：
Zhang, Huili [1 ]
Zhao, Yucui [2 ]
Chen, Xuyu [3 ]
Dong, Long [1 ]
Yu, Hailin [4 ]
Deng, Jinjun [1 ]
Tong, Yanbin [1 ]
Wu, Lingmin [1 ]
Sun, Liqun [1 ]
Liu, Hongsheng [1 ]
机构：
[1] Daqing Normal Univ, Heilongjiang Prov Key Lab Oilfield Appl Chem & Tec, Daqing 163412, Heilongjiang, Peoples R China
[2] Daqing Oilfield Co Ltd, Downhole Operat Branch Special Proc Operat Team, Daqing 163000, Heilongjiang, Peoples R China
[3] Daqing Oilfield Nat Gas Branch, Grp Oil & Gas Storage & Transportat 3, Daqing 163000, Heilongjiang, Peoples R China
[4] Northeast Petr Univ, Coll Chem & Chem Engn, Prov Key Lab Oil & Gas Chem Technol, Daqing 163318, Heilongjiang, Peoples R China
来源：
PETROLEUM SCIENCE AND TECHNOLOGY | 2024年 / 42卷 / 24期
关键词：
nanomaterials; rheology; viscosity improvers; wax crystal; waxy crude oil; POUR POINT DEPRESSANTS; WAX CRYSTALLIZATION; FLOW BEHAVIOR; PERFORMANCE;
D O I：
10.1080/10916466.2023.2208602
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：
The waxy crude oil was routinely transported by means of adding pour point depressants (PPD), which can significantly improve the flow behavior of waxy crude oil. In this study, the physical properties of crude oil were first characterized. Subsequently, a novel variety of W/O nanoemulsion was prepared based on water in an EVA/toluene solution at a 3:1 proportion, and evaluated as a viscosity improver. It was found by virtue of the laser particle size analyzer that the EVA emulsion reaches the nano-scale. EVA nanoemulsion can present a behavior similar to nanocomposite PPD, and form a denser and regular structure with wax crystals via heterogeneous nucleation. Compared with conventional EVA, EVA nanoemulsion further reduces the oil viscosity, gel point and yield value by 52.8%, 0.05 degrees C and 29.6%. In addition, the impact of particle size of EVA nanoemulsion on the rheology of crude oil was discussed. In combination with DSC curve and POM, the action mechanism of EVA nanoemulsion on crude oil was analyzed.
引用
收藏
页码：3563 / 3579
页数：17
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