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Dagang Oilfield Group into a machinery manufacturing company in the manufacture and installation of 1,000 square displacement, head of the first 2000 meters of Taiwan's largest displacement, highest lift electric diaphragm pump unit Nanpu oil field in the NP1-P4 smooth production wells, and agreed high oil flow, indicating that in the machinery manufacturing company into a submersible electric diaphragm pumps diaphragm vacuum pump manufacturers in the series has reached the leading domestic level. Ji Nanpu oil wells NP1-P4 is a horizontal well orientation. Well, following the NP1-P1 and NP1-P2 have access to high-yielding two wells, the reservoir reached the national level through the longest well. In accordance with the actual data well, Jidong Oilfield and the relevant departments to decide the leadership of the oil well electric submersible vacuum pumps diaphragm pumps diaphragm-type by 800 square / 1500 meters adjusted to 1000 square / 2000 meters, and the request into a machinery manufacturing company in 15 days submersible electric pump diaphragm supporting and experimental units and related ground equipment fully.