Installing Plunger Lift Systems In Gas Wells
Exhibit 1: Plunger Lifts
As the plunger is lifted to the surface, gas and accumulated liquids above the plunger flow through the upper and lower outlets.
The plunger arrives and is captured in the lubricator, situated across the upper lubricator outlet.
The gas that has lifted the plunger flows through the lower outlet to the sales line.
Once gas flow is stabilized, the automatic controller releases the plunger, dropping it back down the tubing.
The cycle repeats.
New information technology systems have streamlined
plunger lift technologies management
monitoring and such as smart
control. For example, automation, online data
and satellite communications allow operators
attention, which increases efficiency
wells that need reduces cost. For
more information regarding artificial lift systems, see the
this technology and other Lessons Learned document
in Gas Wells”.
Economic and Environmental Benefits
memory and programmable functions based on process sensors.
Operation of a typical plunger lift system involves the following steps:
The plunger rests on the bottom hole bumper spring located at the base of the well. As gas is produced to the sales line, liquids accumulate in the well-bore, creating a gradual increase in backpressure that slows gas production.
To reverse the decline in gas production, the well is shut-in at the surface by an automatic controller. This causes well pressure to increase as a large volume of high pressure gas accumulates in the annulus between the casing and tubing. Once a sufficient volume of gas and pressure is obtained, the plunger and liquid load are pushed to the surface.
The installation of a plunger lift system serves as a cost- effective alternative to beam lifts and well blowdown and yields significant economic and environmental benefits. The extent and nature of these benefits depend on the liquid removal system that the plunger lift is replacing.
Lower capital cost versus installing beam lift equipment. The costs of installing and maintaining a plunger lift are generally lower than the cost to install and maintain beam lift equipment.
production rates Plunger lift systems energy and increase
as swabbing or well blowdowns are reduced longer needed with plunger lift systems.
conserve the well’s lifting