Multipart sliding joint for floating rig
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United States of America Patent
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Jun 11, 2013
Grant Date -
Oct 16, 2008
app pub date -
Apr 11, 2007
filing date -
Apr 11, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A system for interconnecting a floating rig and a riser assembly includes a rotating control device permitting pressurization of the riser assembly; and a sliding joint connected to the rotating control device, the sliding joint being longitudinally extendable and compressible while the riser assembly is pressurized. Another system includes a sliding joint including more than two telescoping sleeves, and the sliding joint being longitudinally extendable and compressible while the riser assembly is pressurized at the surface. An apparatus includes a sliding joint with multiple sets of telescoping sleeves, each set including at least two of the sleeves. Another apparatus includes a sliding joint with multiple radially overlapping seal assemblies.
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