Date post: | 07-Mar-2015 |
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GAS LIFT SYSTEM(COMPONENTS)
Presenter: Syameer Hafiq GhaniTrade: Production (PTP-3/Sem. 5)
OVERVIEW
Gas Lift Compone
nts
Side Pocket Mandrels
Gas Lift Valve
The SchematicsComponentsGas Lift System
Side Pocket Mandrels
Side Pocket Mandrels
Gas Lift Valve
Side Pocket
Mandrels
Function..Size..Abnormal
Condition..
Sid
e P
ocket
man
dre
l
Gas Lift ValvesHeart of gas lift systemVery similar like downhole
pressure regulatorUse the same basic componentsBut, the arrangement of the
components may vary
Basic Components of Gas Lift valve
Port
Type of Gas Lift Valve
Gas Lift Valves
Dummy Valve
Installed in SPM as a non-equalizing isolation toolTo blank off the tubing for production until gas lift valves are requiredTo remove dummy valve, we used standard wireline retrieval method
Injection Pressure Operated Valve
Dome is charged to a specified pressure by using NitrogenThe bellow serves as a flexible or responsive elementNot using spring, depend on the pressure in the domeBuildup of injection pressure open the port, a reduction in injection pressure close it
Production Pressure Operated Valve
The port is exposed to the injection pressureThe bellow is exposed to the production pressureDouble element valveThe dome of this valve maybe charged or not charged by nitrogen. Depends on the condition
Pilot Valve
Normally used to kick-off or unload the well (intermittent)It has both small port to control the spread and large port to ensure efficient gas flow
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