CAJ | 학술논문

闵桥油田注水井出砂严重，影响了注水井的正常注水，拟采用防膨抑砂剂对其地层进行处理。通过防膨性能、抑砂能力、注入性能三个方面对5种防膨抑砂剂进行了评价与筛选。实验表明，KD -80-2防膨抑砂剂效果最佳且注入性能好，因此选定 KD -80-2为闵桥油田使用的防膨抑砂剂。通过工艺优选，推荐其使用浓度为3.5％，吸附稳定时间24h。截至2012年8月，共有5口井进行了应用，5口井均正常生产，未见出砂。
민교유전주수정출사엄중，영향료주수정적정상주수，의채용방팽억사제대기지층진행처리。통과방팽성능、억사능력、주입성능삼개방면대5충방팽억사제진행료평개여사선。실험표명，KD -80-2방팽억사제효과최가차주입성능호，인차선정 KD -80-2위민교유전사용적방팽억사제。통과공예우선，추천기사용농도위3.5％，흡부은정시간24h。절지2012년8월，공유5구정진행료응용，5구정균정상생산，미견출사。
In Minqiao Oilfield,serious sand production affects normal operation of water injection wells.To solve the problem,the antiswelling and sand inhibiting agent is used to pretreat formation before injection water.Screening and eval-uation of five kinds of antiswelling and sand inhibiting agents were carried out from three aspects:antiswelling capability, sand controlling performance and injectivity.Experimental results show that KD -80 -2 has the best effect and good injec-tivity.Therefore,KD -80 -2 was chosen as the antiswelling and sand inhibiting agent used in Minqiao Oilfield.Through optimizing treatment process,it was recommended that the working concentration of KD -80 -2 is 3.5wt% and the time of adsorption is 24 hrs.As of August 2012,the antiswelling and sand inhibiting agent was applied in five water injection wells.The five wells normally run and do not produce sand.