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  2. Gas lift - Wikipedia

    en.wikipedia.org/wiki/Gas_lift

    The gas-lift mandrel is a device installed in the tubing string of a gas-lift well onto which or into which a gas-lift valve is fitted. There are two common types of mandrels. In a conventional gas-lift mandrel, a gas-lift valve is installed as the tubing is placed in the well. Thus, to replace or repair the valve, the tubing string must be pulled.

  3. Petroleum production engineering - Wikipedia

    en.wikipedia.org/wiki/Petroleum_production...

    Petroleum production engineers design and select subsurface equipment to produce oil and gas well fluids. [1] They often are degreed as petroleum engineers, although they may come from other technical disciplines (e.g., mechanical engineering, chemical engineering, physicist) and subsequently be trained by an oil and gas company.

  4. Allocation (oil and gas) - Wikipedia

    en.wikipedia.org/wiki/Allocation_(oil_and_gas)

    A traditional allocation practice will execute quantity calculations for crude oil, natural-gas condensate and produced water based on measured results from periodic, time-limited well tests. Natural gas flows from pure gas wells are usually measured continuously at or near the individual wellheads.

  5. Well stimulation - Wikipedia

    en.wikipedia.org/wiki/Well_stimulation

    Gas lift is sometimes considered a form of stimulation, particularly when it is only used for starting up the well and shut off during steady state operation. More commonly though, lifting as a stimulation refers to trying to lift out heavy liquids that have accumulated at the bottom, either through water entry from the formation or through ...

  6. Annulus (well) - Wikipedia

    en.wikipedia.org/wiki/Annulus_(well)

    The 'A' annulus can serve a number of crucial tasks, including gas lift and well kills. A normal well will also have a 'B' and frequently a 'C' annulus, between the different casing strings. A normal well will also have a 'B' and frequently a 'C' annulus, between the different casing strings.

  7. Airlift pump - Wikipedia

    en.wikipedia.org/wiki/Airlift_pump

    "Airlift calculation by Sanitaire (pdf document)" (PDF). sanitaire.com. 2012-01-05. Archived from the original on 2012-01-05}: CS1 maint: unfit URL ; Recovered airlift_basic_calculation.xls via Waybackmachine. Mirrored at filedropper dot com /airliftbasiccalculation.

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  9. Well control - Wikipedia

    en.wikipedia.org/wiki/Well_control

    The LOT determines the pressure and/or fluid weight the test zone below the casing can sustain. The fluid in the well must be circulated clean to ensure it is of a known and consistent density. If mud is used, it must be properly conditioned and gel strengths minimized. The pump used should be a high-pressure, low-volume test, or cementing pump.