Ground direct drive pump systems for artificial lift as an excellent way, in the heavy oil , oil sand-carrying Inoue shows more obvious than other extraction methods superiority .
Direct drive screw pump system consists of ground downhole pump, oil press machine, rod stabilizer and ground drive system components. Work, driven by the oil- ground power poles rotating rod connected to the bottom of the screw rotor rotation therewith , the lower part of the well fluid through the screw pump suction from the upper end of the discharge pipe outflow from the wellhead , and oil mill plant through the ground line to the metering station .