The pump is used in 45 wells,by which the effect,of long maintenance-free period and using less cost for the eccentrically worn well prevention and reducing the cost of viscous oil we...

• 已经在现场应用45口井,成功解决了偏磨井治理在少投入情况下的有效延长油井免修期的问题,成功解决了稠油井、高油气比井、大斜度井的低成本、高泵效生产的问题,取得了良好的经济效益和社会效益,应用前景广阔。