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由江汉石油管理局钻采设备研究所与上海大隆机器厂联合设计、试制的两台3W-N8三缸单作用泥浆泵样机,继出厂试验、研究所台架试验之后,目前正在江汉油田32775钻井队进行工业试验。这种泥浆泵与同功率的双缸双作
Two 3W-N8 three-cylinder single-action mud pump prototypes jointly designed and manufactured by the Institute of Drilling and Production Equipment of Jianghan Petroleum Administration Bureau and Shanghai Dalong Machinery Factory, are being tested at the factory after the factory test and the bench test of the research institute, and are currently being tested at Jianghan Oilfield 32775 Drilling team for industrial tests. This mud pump with the same double-cylinder power