Study on reservoir plugging mechanism of Fuxian reservoir in Yuancheng
Some wells in Fuxian Reservoir of Yuancheng show the characteristics of reservoir plugging,and the effect of understanding the plugging measures is not ideal It is urgent to carry out research on the mechanism of reservoir plugging,and identify the reasons for plugging,so as to provide technical guidance for the next step of plugging well treatment and prevention.Therefore,clay mineral analysis,sensitivity a-nalysis,flow damage experiment and compatibility analysis were carried out.The research shows that poor compatibility,scaling and plugging of pores and throats caused by flow damage are the main reasons for reservoir plugging,and the scaling is mainly calcium carbonate scale.