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- W2366894457 abstract "It was very difficult to use conventional sucker rod pump on an inclination angle over 45 degrees directional and horizontal wells.The standing valves couldn't be closed in time by reason of inclination angle,which reduced pump efficiency.A new kind of standing valves is introduced,which forced standing valves of sucker rod pumps close.After practical use,the daily liquid production raised from 5.1 t to 13.1 t,the daily oil production raised from 1.6 t to 3.7 t,the pump efficiency was increased from 15.7% to 49.6% in 8 highly deviated well in No.3 oil production plant Zhongyuan Oilfield.The result showed that it could obviously increase the pump efficiency." @default.
- W2366894457 created "2016-06-24" @default.
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- W2366894457 date "2011-01-01" @default.
- W2366894457 modified "2023-09-25" @default.
- W2366894457 title "Application of Forced Close Standing Valves of Sucker Rod Pumps in Highly Deviated Wells" @default.
- W2366894457 hasPublicationYear "2011" @default.
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