Method for connection of underwater pipelines and a tool for such connection
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 1, 2004
Grant Date -
Mar 13, 2003
app pub date -
Oct 18, 2002
filing date -
Apr 18, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A tool (1') for pulling an end of a first pipe (102) towards a stationary, second pipe (101) includes gripping devices (47) for holding the first pipe (102), and winch devices (140) for pulling the tool with the pipe towards the stationary pipe (101). A collar (50) which is releasable attached to the stationary pipe, has an anchoring point (60,61) for the pull-in line (141). When the tool with the end of the first pipe approaches the stationary pipe, a moment arm (149) on the tool interfaces with a stop (65,66) on the collar. At the same time, an alignment and stroking actuator (110) grips the collar above the axis of the stationary pipe. The moment arm and alignment actuator cooperate to raise the first pipe into a horizontal position so that it is aligned with the stationary pipe.
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Cited Art Landscape
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