Page 13 - Artificial Lift Methods
P. 13
Conventional Gas Lift
Petroleum Extension-The University of Texas at Austin
Conventional
Gas Lift
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In this chapter:
• Typical applications of conventional gas-lift systems
• Distinctions between continuous and intermittent gas lift
• Key factors to consider when using gas lift
• Achieving maximum efficiency with a gas-lift system
ir lifting of water with a small amount of oil was first known to
Abe used in the United States as early as 1846, but compressed
air was reportedly used to lift water from wells in Germany as early
as the eighteenth century. These systems operated initially in a very
simple manner by induction of air to the bottom of the tubing and
out into the casing. Aeration of the fluid in the casing-tubing an-
nulus decreased the weight of the mixture to the extent that fluid
would rise to the surface and flow out of the well. The process was
sometimes reversed by injecting down the casing and producing
through the tubing.
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