化学驱乳化机理及乳化驱油新技术研究进展

doi:10.3969/j.issn.1001-1803.2019.01.010

Abstract

Abstract:

Emulsification is one of the important mechanisms in chemical flooding, which is widely studied in recent years. In addition, the new technology of emulsification displacement is focused increasingly. The basic concepts in emulsification have been introduced. The emulsification mechanism in chemical flooding has been summarized, and the influencing factors in chemical flooding emulsification has been analyzed. The current research status of new technology for emulsification displacement has been introduced. Some problems are pointed out and some suggestions are given. As the application of chemical flooding gradually becomes in a larger scale, the demand for new chemical flooding technology is increasingly strong. The deep study of emulsification should go on. The technology of emulsification displacement has great research value and application potential.

Key words: chemical flooding, emulsification, emulsion, oil displacement, new technology, progress

CLC Number:

TE357.46

Guang-yu YUAN. Research progress of the emulsification mechanism in chemical flooding and the new technology of emulsification displacement[J].China Surfactant Detergent & Cosmetics, 2019, 49(1): 44-50.

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References 46

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性质	乳状液	微乳液	胶束
外观	白色,不透明	透明或略带乳光	透明
粒径	大于100 nm,显微镜可见	小于100 nm,显微镜不可见	小于10 nm
质点形状	球形,分散相比例较大时呈不规则形状	球形的孤立粒子	球状、棒状、层状
表面活性剂用量	较少,一般1%~3%	较多,一般5%~20%,常需要助表面活性剂	浓度大于cmc
稳定性	热力学不稳定,静置易分层,离心可使之分离	热力学稳定,静置不易分层,离心不能使之分离	稳定
溶解性	只能与外相混溶	在一定范围内互溶	增溶油或水至饱和
形成方式	外力	自发	自发

Research progress of the emulsification mechanism in chemical flooding and the new technology of emulsification displacement

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