Pickering乳状液及其在油田中的应用

Research on the application situations of Pickering emulsion in oil field

摘要:

随着纳米技术的不断进步，Pickering乳状液由于其独特的优势，在食品、化妆品、医药等领域有着广泛的应用。目前，Pickering乳状液在石油领域的应用国外已经较为成熟、而国内只有少数论文提及。因此，从Pickering乳状液形成与稳定的机理的分析入手，讨论了Pickering乳状液的稳定性影响因素及其流变学特性，最后介绍了Pickering乳状液在油田领域的应用现状及前景。结论认为：（1）Pickering乳状液由于其独特的稳定性，针对它的破乳技术将是一个重要的研究方向。（2）对环境刺激响应的固体颗粒乳化剂的深入研究将会更好地促进Pickering乳状液在油田领域的应用。（3）为促进Pickering乳状液在油田领域的广泛应用，可重点考虑对纳米SiO2 和纳米CaCO3 的改性。

Abstract:

With the continuous development of nanotechnology, Pickering emulsion, with its unique advantages, is widely used in a various fields such as food, cosmetics, medicine and so on. Pickering emulsion has been commonly applied in oil field and this technique is quite mature abroad, but few researches on the oil filed have been conducted in China. This paper first elaborates the mechanism of Pickering emulsion's formation and stabilization, and then discusses the factors that affect Pickering emulsion's stability and rheology. Finally, this paper clarifies current applications of Pickering emulsion in oil fields and forecasts its prospects. The conclusions of this paper can be summarized as following: (1) Due to Pickering emulsion’s unique stability, the demulsification technology will be a significant research direction. (2)The in-depth research on solid nanoparticles emulsifiers which is sensitive to environmental stimulus will better promote the use of Pickering emulsion in oil fields. (3) In order to promote the universal application of Pickering emulsion in oil field, researchers are suggested to focus on the modification of nano-SiO2 and nano-CaCO3.