Riser tensioning arrangement
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United States of America Patent
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-
Dec 28, 2004
Grant Date -
Jul 29, 2004
app pub date -
Mar 29, 2004
filing date -
Apr 27, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An arrangement for transferring loads by means of one or more hydraulic cylinder-like actuators (19, 26, 40) in order to establish and maintain tension in a riser (1) of the type typically used in offshore petroleum production, where the riser (1) constitutes a connection between the sea bed (2) and an installation (4) on or near the surface of the sea (6), and where the required pressure difference between the pressure side(s) (18, 42) and the depressurised side(s) (17, 46) of the actuator(s) (19, 29, 40) is constituted by a hydrostatic pressure difference.
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