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→Gas lift
==Gas lift==
==Gas lift==
[[file:artificial-lift_fig2.png|thumb|{{figure number|2}}Gas lift system.<ref name=pt09r5 />]]
[[file:artificial-lift_fig2.png|thumb|300px|{{figure number|2}}Gas lift system.<ref name=pt09r5 />]]
Gas lift is the process of lifting fluids from the wellbore using high pressure gas as the energy source. Downhole gas lift equipment consists of a series of gas lift valves spaced at predetermined depths in the tubing string. The tubing string is set in a packer above the casing perforations ([[:file:artificial-lift_fig2.png|Figure 2]]). Gas is normally injected down the tubing/casing annulus and enters the tubing via the gas lift valves. A surface gas compressor is used to provide the high gas pressure required to open the gas lift valves.
Gas lift is the process of lifting fluids from the wellbore using high pressure gas as the energy source. Downhole gas lift equipment consists of a series of gas lift valves spaced at predetermined depths in the tubing string. The tubing string is set in a packer above the casing perforations ([[:file:artificial-lift_fig2.png|Figure 2]]). Gas is normally injected down the tubing/casing annulus and enters the tubing via the gas lift valves. A surface gas compressor is used to provide the high gas pressure required to open the gas lift valves.