Elevator for gripping and lifting a riser joint
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United States of America Patent
Stats
-
Sep 18, 2012
Grant Date -
Sep 30, 2010
app pub date -
Nov 21, 2008
filing date -
Nov 21, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An elevator for gripping and lifting a riser joint or several interconnected riser joints of a completion and work over riser. A body includes a through bore for receiving a production pipe of a riser joint. The through bore is accessible via a longitudinal opening in the body. The body includes at least one locking device including a hydraulic cylinder. A piston rod of the hydraulic cylinder is moveable to and fro between an unlocking position, in which the piston rod allows a production pipe of a riser joint to pass into or out of the through bore via the longitudinal opening, and a locking position, in which the piston rod prevents a production pipe received in the through bore from passing out of the through bore via the longitudinal opening.
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