摘要：Chemical flooding plays an important role in enhancing oil recovery due to many reasons, including the viscosity-increment effect of polymer, wettability alteration effect of surfactant, and the formation of emulsions, which have been known to effectively increase the swept area and oil displacement efficiency, hence increasing heavy oil recovery. Laboratory tests and pilot trials of alkali-surfactant-polymer (ASP) injection show that the oil recovery of the emulsified system is 5% more than the cases where no emulsions existed. Therefore, it is of great significance to study heavy oil emulsions and its field application for enhanced heavy oil recovery. This paper discusses a thorough overview of the most fundamental ASP flooding mechanisms, along with some examples of laboratory experiments and field trials. In addition, the formation conditions and the interfacial characteristics of heavy oil emulsions are also discussed, mainly ASP flooding, and then the seepage mechanisms of these emulsions are investigated. The relationship between the formation of heavy oil emulsions and the enhanced heavy oil recovery effect by chemical flooding is discussed through core flooding experiments at the reservoir temperature and some field pilots to reach the optimum heavy oil recovery.

关键字：chemical flooding; ASP flooding; emulsions; enhance oil recovery; seepage mechanisms

ISSN号： 1996-1073

卷、期、页：卷: 15期: 22

发表日期：2022-11-01

影响因子：3.004000

期刊分区（SCI为中科院分区）：三区

收录情况：SCI（科学引文索引印刷版）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：ENERGIES

通讯作者：王富琼,迈德,温志远,陈秀林

第一作者：王秀宇

论文类型：期刊论文

论文概要：王秀宇,王富琼,迈德,温志远,陈秀林，A Review of the Seepage Mechanisms of Heavy Oil Emulsions during Chemical Flooding，ENERGIES，2022，卷: 15期: 22

论文题目：A Review of the Seepage Mechanisms of Heavy Oil Emulsions during Chemical Flooding