Multiple seal design for composite risers and tubing for offshore applications

    公开(公告)号:GB2400392A

    公开(公告)日:2004-10-13

    申请号:GB0412531

    申请日:2002-12-04

    Abstract: The present invention discloses multiple sealing systems for composite risers and methods of preventing interior fluid leakage to the outside of composite risers. Single or multiple elastomeric seals are formed between an elastomer applied in single or multiple grooves provided circumferentially along the outer surface of a metal to composite interface (MCI) of a liner assembly of the composite riser and an elastomeric shear ply provided on the outside of the liner assembly. The elastomeric seals and a seal between the MCI and the liner of the liner assembly provide a multiple sealing system for the composite riser to prevent leakage of interior fluids. In the event that the integrity of the seal between the MCI and liner fails or the integrity of the liner is compromised, the elastomeric seals would prevent leakage of the fluid to the outside of the composite riser.

    2.
    发明专利
    未知

    公开(公告)号:NO20042815L

    公开(公告)日:2004-07-02

    申请号:NO20042815

    申请日:2004-07-02

    Inventor: SALAMA MAMDOUH M

    Abstract: The present invention discloses redundant sealing systems for composite risers having metal liner assemblies and methods of preventing interior fluid leakage to the outside of composite risers. An elastomeric seal is formed between an elastomeric tip provided on the end of a metal to composite interface (MCI) of the liner assembly and an elastomeric shear ply provided over the liner assembly. The elastomeric seal and a mechanical seal between the MCI and a transition ring which secures the liner to the MCI, provides a dual sealing system for the composite riser to prevent leakage of interior fluids. In the event that the integrity of the mechanical seal or the integrity of the liner is compromised, the elastomeric seal would prevent leakage of the fluid to the outside of the composite riser.

    5.
    发明专利
    未知

    公开(公告)号:BR0214738A

    公开(公告)日:2004-09-14

    申请号:BR0214738

    申请日:2002-12-04

    Inventor: SALAMA MAMDOUH M

    Abstract: The present invention discloses redundant sealing systems for composite risers having metal liner assemblies and methods of preventing interior fluid leakage to the outside of composite risers. An elastomeric seal is formed between an elastomeric tip provided on the end of a metal to composite interface (MCI) of the liner assembly and an elastomeric shear ply provided over the liner assembly. The elastomeric seal and a mechanical seal between the MCI and a transition ring which secures the liner to the MCI, provides a dual sealing system for the composite riser to prevent leakage of interior fluids. In the event that the integrity of the mechanical seal or the integrity of the liner is compromised, the elastomeric seal would prevent leakage of the fluid to the outside of the composite riser.

    A floating platform having a spoolable tether installed thereon and method for tethering the platform using same

    公开(公告)号:GB2391518A

    公开(公告)日:2004-02-11

    申请号:GB0325062

    申请日:2002-04-24

    Abstract: The present invention discloses a process for installing a floating platform (20) to the ocean floor using a spoolable tether (15), comprising installing the spooled tether onto the floating platform; towing the floating platform to a site for installation; unspooling the tether; connecting a bottom end connector (45) of the tether to a foundation (75) on the ocean floor; and connecting a top end connector of the tether to the floating platform. A preferred floating platform is a tension leg platform, and the invention includes a novel tension leg platform (TLP) comprising a spooled tether (15) installed thereon. In a preferred embodiment the foundation (75) is a suction anchor (100), and the suction anchor (100) is connected to the bottom end connector (45) prior to unspooling the tether and attached to the ocean floor after unspooling the tether. The floating platform may be installed, moved and re-installed according to the invention.

    Multiple seal design for composite risers and tubing for offshore applications

    公开(公告)号:GB2400392B

    公开(公告)日:2005-09-28

    申请号:GB0412531

    申请日:2002-12-04

    Abstract: The present invention discloses multiple sealing systems for composite risers and methods of preventing interior fluid leakage to the outside of composite risers. Single or multiple elastomeric seals are formed between an elastomer applied in single or multiple grooves provided circumferentially along the outer surface of a metal to composite interface (MCI) of a liner assembly of the composite riser and an elastomeric shear ply provided on the outside of the liner assembly. The elastomeric seals and a seal between the MCI and the liner of the liner assembly provide a multiple sealing system for the composite riser to prevent leakage of interior fluids. In the event that the integrity of the seal between the MCI and liner fails or the integrity of the liner is compromised, the elastomeric seals would prevent leakage of the fluid to the outside of the composite riser.

    9.
    发明专利
    未知

    公开(公告)号:BR0214739A

    公开(公告)日:2005-01-04

    申请号:BR0214739

    申请日:2002-12-04

    Abstract: The present invention discloses multiple sealing systems for composite risers and methods of preventing interior fluid leakage to the outside of composite risers. Single or multiple elastomeric seals are formed between an elastomer applied in single or multiple grooves provided circumferentially along the outer surface of a metal to composite interface (MCI) of a liner assembly of the composite riser and an elastomeric shear ply provided on the outside of the liner assembly. The elastomeric seals and a seal between the MCI and the liner of the liner assembly provide a multiple sealing system for the composite riser to prevent leakage of interior fluids. In the event that the integrity of the seal between the MCI and liner fails or the integrity of the liner is compromised, the elastomeric seals would prevent leakage of the fluid to the outside of the composite riser.

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