Recent advances in switchable surfactants for heavy oil production: A review

IF 3.6

Energy Geoscience Pub Date : 2024-09-10 DOI:10.1016/j.engeos.2024.100342

Qi Li , Lingfei Liu , Dejun Sun , Zhenghe Xu

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Abstract

Surfactants are extensively employed in the cold production of heavy oil. However, producing heavy oil emulsions using conventional surfactants poses a challenge to spontaneous demulsification, necessitating the addition of demulsifiers for oil-water separation. This inevitably increases the exploitation cost and environmental pollution risk. Switchable surfactants have garnered much attention due to their dual capabilities of underground heavy oil emulsification and surface demulsification. This study focuses on the fundamental working principles and classification of novel switchable surfactants for oil displacement developed in recent years. It offers a comprehensive overview of the latest advances in the applications of switchable surfactants in the fields of enhanced oil recovery (EOR), oil sand washing, and oil-water separation. Furthermore, it highlights the existing challenges and future development directions of switchable surfactants for heavy oil recovery.

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用于重油生产的可转换表面活性剂的最新进展：综述

表面活性剂被广泛用于重油的冷生产。然而，使用传统表面活性剂生产重油乳状液对自发破乳提出了挑战，因此必须添加破乳剂进行油水分离。这不可避免地增加了开采成本和环境污染风险。可转换表面活性剂因其具有地下重油乳化和表面破乳的双重能力而备受关注。本研究重点介绍了近年来开发的用于石油置换的新型可切换表面活性剂的基本工作原理和分类。它全面概述了可切换表面活性剂在提高石油采收率（EOR）、油砂清洗和油水分离领域应用的最新进展。此外，它还重点介绍了重油开采中可切换表面活性剂的现有挑战和未来发展方向。

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来源期刊

Energy Geoscience

CiteScore

8.20

自引率

0.00%

发文量