Research status and prospect of surfacants for imbibition flooding
Surfactant is a substance with hydrophilic groups and lipophilic groups,which can change rock wettability,reduce oil-water interfacial tension,emulsify crude oil,increase rock surface charge density and prevent asphaltene from precipitating during the imbibition flooding.In this paper,the advantages,disadvantages and research status of different types of surfactants as imbibition oil displacement agents were overviewed.The technical advantages exhibited by surfactant compounding and nanoparticle reinforcement were summarized.And the future development direction of surfactants as imbibition oil displacement agents was prospected.
NETL
NSTL
万方数据
维普
