A NEW METHOD FOR PLUGGING WATER WITH EPOXY RESIN SMALL BALLS

This paper introduces a new method for plugging water with epoxy resin small balls.The epoxy resin small balls are made when epoxy resin is mixed with softening agent and firming agent in dispersion medium.After gelation and before solidification,the epoxy resin small balls are injected into watered interval of oil well.After that the dispersion medium goes into formation,and the epoxy resin balls stay in shot holes and are compacted and indurated by differential pressure,and then the high-permeability water-out zone is plugged.Because epoxy resin balls only stay in shot holes,a few of epoxy resin will be used for water control.The plugged zone may meet the needs of production in large pressure difference.This technology is easy to be popularized becauce of low cost,high strength and simple operation.