Research and application of alkali resistant resin coated proppant for ASP Flooded Reservoir in Daqing oilfield

The reason that Phenolic resin coated proppant (RCP)cannot be applied in ASP flooded reservoir is stud- ied in this paper analyzed.Based on that,the research and evaluation on a novel alkali resistant RCP is carried out. The results show this kind of epoxy RCP has satisfactory strength under low temperature,and it also has features of stable resistance for chemicals,high conductivity,fast reaction,low crush rate,etc,so it can be widely applied to prevent sand flow-back while fracturing.This tech- nology has been used for 3 wells in ASP flooding area of Daqing oilfield,and no sand flow-back occurred after fracturing,the treatment service time has been over 13 months.Field application indicates this alkali resistant RCP can prevent proppant migration effectively and pro- long the service life of fracturing.