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  2. Pumpjack - Wikipedia

    en.wikipedia.org/wiki/Pumpjack

    A short video recording of such a pump in action can be viewed on YouTube. [ 6 ] Although the flow rate for a water well pumpjack is lower than that from a jet pump and the lifted water is not pressurised, the beam pumping unit has the option of hand pumping in an emergency, by hand-rotating the pumpjack cam to its lowest position, and ...

  3. Pumping station - Wikipedia

    en.wikipedia.org/wiki/Pumping_station

    Submersible pumps are mounted on two vertical guide rails and seal onto a permanently fixed "duckfoot", which forms both a mount and also a vertical bend for the discharge pipe. For maintenance or replacement, submersible pumps are raised by a chain off of the duckfoot and up the two guide rails to the maintenance (normally ground) level.

  4. Submersible pump - Wikipedia

    en.wikipedia.org/wiki/Submersible_pump

    A 0.75 HP bore-well submersible pump which had been used to pump groundwater One style of submersible pump for industrial use. Outlet pipe and electrical cable not connected. A submersible pump (or electric submersible pump (ESP) is a device which has a hermetically sealed motor close-coupled to the pump body. The whole assembly is submerged in ...

  5. Hand pump - Wikipedia

    en.wikipedia.org/wiki/Hand_pump

    Diaphragm pumps have the advantage that they pump relatively lightly due to the lack of pulling rods and are corrosion resistant. Their disadvantage is that they need a specific length of tubing and high quality rubber diaphragms, which are costly and are relatively inefficient due to the extra work needed to deform the diaphragm.

  6. Workover - Wikipedia

    en.wikipedia.org/wiki/Workover

    A workover rig. The term workover is used to refer to any kind of oil well intervention involving invasive techniques, such as wireline, coiled tubing or snubbing.More specifically, a workover refers to the expensive process of pulling and replacing completion or production hardware in order to extend the life of the well.

  7. How a family survived a 250-foot plunge off a California ...

    www.aol.com/unlikely-survival-family-plunged-off...

    Survival of California family that plunged 250 feet off cliff due to luck, Tesla's design, experts say