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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. Lifting gas - Wikipedia

   en.wikipedia.org/wiki/Lifting_gas

   This calculation is at sea level at 0 °C. For higher altitudes, or higher temperatures, the amount of lift will decrease proportionally to the air density, but the ratio of the lifting capability of hydrogen to that of helium will remain the same. This calculation does not include the mass of the envelope need to hold the lifting gas.

4. Lift coefficient - Wikipedia

   en.wikipedia.org/wiki/Lift_coefficient

   The section lift coefficient is based on two-dimensional flow over a wing of infinite span and non-varying cross-section so the lift is independent of spanwise effects and is defined in terms of ′, the lift force per unit span of the wing. The definition becomes

5. Airlift pump - Wikipedia

   en.wikipedia.org/wiki/Airlift_pump

   The calculation of the volume flow of the liquid is possible thanks to the ... Design improvements ... Gas lift – Raising a fluid by introducing bubbles of gas ...

6. Lift (force) - Wikipedia

   en.wikipedia.org/wiki/Lift_(force)

   Lift is proportional to the density of the air and approximately proportional to the square of the flow speed. Lift also depends on the size of the wing, being generally proportional to the wing's area projected in the lift direction. In calculations it is convenient to quantify lift in terms of a lift coefficient based on these factors.

7. Separator (oil production) - Wikipedia

   en.wikipedia.org/wiki/Separator_(oil_production)

   Over the life of a production system, the separator is expected to process a wide range of produced fluids. With break through from water flood and expanded gas lift circulation, the produced fluid water cut and gas-oil ratio is ever changing. In many instances, the separator fluid loading may exceed the original design capacity of the vessel.

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9. 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.