1. Direct-drive Screw Pump Equipment in Daqing Oilfield

　　Over a thousand have been erected in Daqing Oilfield. All direct-drive devices are in normal operation at present, which meet production requirements.

　　Compared with the belt-drive equipment operating in the same area and with the same parameters, the comprehensive power saving rate is 28%.

　　2. Direct-drive Screw Pump Equipment in Shengli Oilfield

　　Over a hundred have been erected in Shengli Oilfield. All direct-drive devices are in normal operation at present, which meet production requirements.

　　Compared with the belt-drive equipment operating in the same area and with the same parameters, the comprehensive power saving rate is 21%.

　　3. Direct-drive Screw Pump Equipment in Other Oilfields

　　Nearly a hundred have been erected in other oilfields at home (Dagang, Qinghai and other oilfields) and aboard (30 sets in the Middle East). All direct-drive devices are in normal operation at present, which meet production requirements. Compared with the belt-drive equipment operating in the same area and with the same parameters, the comprehensive power saving rate exceeds 30%.