California Mojave CA Oil Rigs donkeys Pumping Oil Cloudy Blue Sky
A pump jack, nodding donkey, pumping unit, or horsehead pump is the overground drive for a submersible pump in a borehole. It is used to mechanically lift liquid out of the well if there is not enough bottom hole pressure for the liquid to flow all the way to the surface.
Size: 11760px × 2948px
Photo credit: © ©David Zanzinger / Alamy / Afripics
License: Licensed
Model Released: No
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