APPLICATION OF ENERGY - SAVING TECHNOLOGY OF WELL PUMPING UNIT AND ITS EVALUATION IN CENTRAL SICHUAN OIL FIELD

On the basis of the actual condition of oil producing in central Sichuan Oilfield, a series of oil producing by pumping matching techniques suited for central Sichuan Oilfield are formed. Central oilfiels introduces energy - saving beam unit with double mule head and diagnostic techmique of monitoring beam unit balance, and develop the energy - saving changing of regular beam pumping unit. All these can reduce energy consumption and improve mechanical oil recovery efficiency and production.