INJECTOR FOR LOGGING OR INTERVENTION STRING
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United States of America Patent
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Issued Date -
Mar 6, 2014
app pub date -
Aug 27, 2013
filing date -
Aug 28, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A well logging- or well intervention string injector includes two adjacent motorized endless chains with gripper elements for bearing against the string. The gripping elements have an engagement packer against the string. The gripping elements run over the back supporting rollers carried by separate back supporting roller brackets. The back supporting roller brackets further bear against an elongated hydrostatic pressure equalizing cushion with hydraulic fluid. The pressure equalizing cushion bears against a back supporting rail.
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