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　　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 satisfies 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 satisfies 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 satisfies 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%