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超支化低温破乳剂对乳化凝析油的高效破乳性能

Efficient Demulsification Performance of Emulsified Condensate Oil by Hyperbranched Low-Temperature Demulsifiers.

作者信息

Jiang Shaohui, Li Qingsong, Ma Qiang, Xu Botao, Zou Tao

机构信息

State Key Laboratory of Heavy Oil Processing, China University of Petroleum East China, Qingdao 266580, China.

Petroleum Engineering Technology Research Institute, Shengli Oil Field Branch, Sinopec, Dongying 257000, China.

出版信息

Molecules. 2023 Nov 10;28(22):7524. doi: 10.3390/molecules28227524.

DOI:10.3390/molecules28227524
PMID:38005246
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10673259/
Abstract

Focusing on the problem of poor demulsification performance of light crude oil emulsions in low-permeability oilfields at low temperatures, the composition of the emulsion samples, clay particle size distribution, and the viscosity-temperature relationship curve of samples were analyzed. Based on the results of emulsion composition analysis and characteristics, the bottle test method was used to analyze the demulsifying effect of different commercial types of demulsifiers, revealing the demulsification mechanism. The field tests confirm the demulsification capabilities of Polyoxyethylene polyoxypropylene quaternized polyoxyolefins surfactants (PR demulsifiers). The results reveal that PR demulsifiers combine the features of decreasing the interfacial tension between oil and water and adsorbing SiO, allowing for quick demulsification and flocculation at low temperatures. This research serves as a theoretical and practical foundation for the study and advancement of low-temperature demulsification technology in oilfields.

摘要

针对低渗透油田轻质原油乳状液在低温下破乳性能差的问题，分析了乳状液样品的组成、黏土粒径分布以及样品的黏温关系曲线。基于乳状液组成分析结果和特性，采用瓶试法分析了不同商业类型破乳剂的破乳效果，揭示了破乳机理。现场试验证实了聚氧乙烯聚氧丙烯季铵化聚烯烃表面活性剂（PR破乳剂）的破乳能力。结果表明，PR破乳剂兼具降低油水界面张力和吸附SiO的特性，能够在低温下实现快速破乳和絮凝。该研究为油田低温破乳技术的研究和发展提供了理论和实践基础。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f4d/10673259/2ca2d8db9e8d/molecules-28-07524-g011.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f4d/10673259/5b578d5a49fe/molecules-28-07524-g002.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f4d/10673259/17bb98c50935/molecules-28-07524-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f4d/10673259/bda3d722dfa5/molecules-28-07524-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f4d/10673259/c4ade291d97a/molecules-28-07524-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f4d/10673259/1c1da71ea907/molecules-28-07524-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f4d/10673259/0a33174b7e06/molecules-28-07524-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f4d/10673259/66114086b444/molecules-28-07524-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f4d/10673259/2ca2d8db9e8d/molecules-28-07524-g011.jpg

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