发明名称 PUMP UNIT
摘要 FIELD: engines and pumps.SUBSTANCE: proposed unit comprises rotary pump 1 with casing 4 communicating ejector system 2 with gas and solids separator 7. Casing chamber on inlet side of pump 1 is communicated with well annular space via opening 12.EFFECT: possibility to decrease feed of extracted fluid.1 dwg
申请公布号 RU2474729(C1) 申请公布日期 2013.02.10
申请号 RU20110123722 申请日期 2011.06.14
申请人 LOGINOVA OL'GA IOSIFOVNA 发明人 LOGINOVA OL'GA IOSIFOVNA
分类号 F04D13/10;E21B43/00 主分类号 F04D13/10
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