油田用防膨缩膨剂的研究进展

Research Progress on Inhibiting/Shrinking Swelling Agents for Oil Fields

防膨缩膨剂作为一种新型油田化学助剂,有着能够防止黏土水化、膨胀、分散和运移,并能使已水化膨胀的黏土脱水并收缩其膨胀体积,恢复油藏储层渗透率,降低注水压力,增大注水量,提高石油产量的作用。本文依次对防膨缩膨剂的作用机理、表征、评价方法、研究现状、现场应用和市场上的产品进行介绍,最后进行总结和展望。

Inhibiting/shrinking swelling agents as a new type of oilfield additive.It can avoid the aquation,inflation,dispersion and migration of clay,and can reduce the expansion volume of expanded clay,recover reservoir permeability,lower the water injection pressure,enhance the injection water volume and the role of raising crude oil production.The function mechanism,characterization,evaluation methodology,research situation,practical application and market products of inhibiting/shrinking swelling agents are introduced in this article.Finally,summary and outlook on inhibiting/shrinking swelling agents.