Well string injection system with gripper pads
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United States of America Patent
Stats
-
Apr 19, 2005
Grant Date -
Jun 24, 2004
app pub date -
Dec 23, 2002
filing date -
Dec 19, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A continuous well string injection unit, comprising a pair of motor driven continuous chains mounted opposed to each for gripping coiled rod between them. Plural links are connected end to end in each one of the pair of motor driven continuous chains, in which each link comprises a connected yoke and a neck, the neck of each link being sized to fit within the yoke of a succeeding link in the motor driven continuous chain with consecutive links connected by a pin extending through the neck of one link and the yoke of the next succeeding link. A method of injecting coiled rod into a well is also provided.
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