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- Q1820425 subject Q7343031.
- Q1820425 subject Q8266666.
- Q1820425 subject Q8760005.
- Q1820425 abstract "A pumpjack (also called oil horse, donkey pumper, nodding donkey, pumping unit, horsehead pump, rocking horse, beam pump, dinosaur, grasshopper pump, Big Texan, thirsty bird, or jack pump) is the overground drive for a reciprocating piston pump in an oil well.It is used to mechanically lift liquid out of the well if not enough bottom hole pressure exists for the liquid to flow all the way to the surface. The arrangement is commonly used for onshore wells producing little oil. Pumpjacks are common in oil-rich areas.Depending on the size of the pump, it generally produces 5 to 40 litres of liquid at each stroke. Often this is an emulsion of crude oil and water. Pump size is also determined by the depth and weight of the oil to remove, with deeper extraction requiring more power to move the increased weight of the discharge column (discharge head).A pumpjack converts the rotary mechanism of the motor to a vertical reciprocating motion to drive the pump shaft, and is exhibited in the characteristic nodding motion. The engineering term for this type of mechanism is a walking beam. It was often employed in stationary and marine steam engine designs in the 18th and 19th centuries.".
- Q1820425 thumbnail Pump_Jack_labelled.png?width=300.
- Q1820425 wikiPageExternalLink all-pumped-up-oil-production-technology.
- Q1820425 wikiPageWikiLink Q1096907.
- Q1820425 wikiPageWikiLink Q12061488.
- Q1820425 wikiPageWikiLink Q12757.
- Q1820425 wikiPageWikiLink Q1324102.
- Q1820425 wikiPageWikiLink Q134574.
- Q1820425 wikiPageWikiLink Q1385603.
- Q1820425 wikiPageWikiLink Q1441585.
- Q1820425 wikiPageWikiLink Q1780087.
- Q1820425 wikiPageWikiLink Q1853644.
- Q1820425 wikiPageWikiLink Q187634.
- Q1820425 wikiPageWikiLink Q211748.
- Q1820425 wikiPageWikiLink Q22656.
- Q1820425 wikiPageWikiLink Q2630246.
- Q1820425 wikiPageWikiLink Q3642742.
- Q1820425 wikiPageWikiLink Q44167.
- Q1820425 wikiPageWikiLink Q45227.
- Q1820425 wikiPageWikiLink Q4876183.
- Q1820425 wikiPageWikiLink Q519336.
- Q1820425 wikiPageWikiLink Q587682.
- Q1820425 wikiPageWikiLink Q6502413.
- Q1820425 wikiPageWikiLink Q7168185.
- Q1820425 wikiPageWikiLink Q7224880.
- Q1820425 wikiPageWikiLink Q7343031.
- Q1820425 wikiPageWikiLink Q7633102.
- Q1820425 wikiPageWikiLink Q8266666.
- Q1820425 wikiPageWikiLink Q857558.
- Q1820425 wikiPageWikiLink Q8760005.
- Q1820425 comment "A pumpjack (also called oil horse, donkey pumper, nodding donkey, pumping unit, horsehead pump, rocking horse, beam pump, dinosaur, grasshopper pump, Big Texan, thirsty bird, or jack pump) is the overground drive for a reciprocating piston pump in an oil well.It is used to mechanically lift liquid out of the well if not enough bottom hole pressure exists for the liquid to flow all the way to the surface. The arrangement is commonly used for onshore wells producing little oil.".
- Q1820425 label "Pumpjack".
- Q1820425 depiction Pump_Jack_labelled.png.