GAS-LIFT VALVE AND METHOD OF USE
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United States of America Patent
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N/A
Issued Date -
Nov 13, 2014
app pub date -
May 8, 2014
filing date -
May 10, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A gas-lift valve comprising an elongated vertically orientated tubular body with inlet ports positioned for communication with the inlet ports of a gas-lift valve mandrel, a valve seat and valve port at the upper end of the valve body, a movable gas charged dome positioned within the body below the valve seat, a valve ball assembly attached to the dome, and a collapsible bellows positioned to move the dome and manipulate the valve ball assembly downward onto and off of the valve seat in response to pressure from said inlet ports of the valve body and pressure on the seat and thereby allow injection gas to flow upward through the valve port to exit at the upper end of the valve body. A tubular latch is provided with a removable plug to provide for pressure testing and completion of the well with only one wireline trip.
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