1.
    发明专利
    未知

    公开(公告)号:NO20020101L

    公开(公告)日:2002-03-08

    申请号:NO20020101

    申请日:2002-01-09

    Abstract: A bottom-to-surface link system includes a submarine pipe assembled to at least one float. At least one coaxial can surrounds the pipe. Junctions, which join the can to the pipe at the top and bottom orifices through which the pipe passes, include leakproof joints assembled around the pipe. Furthermore, the leakproof joints are flexible and resilient and are of the laminated abutment type.

    3.
    发明专利
    未知

    公开(公告)号:FR2797464A1

    公开(公告)日:2001-02-16

    申请号:FR9910417

    申请日:1999-08-09

    Abstract: An apparatus for holding and guiding a floating riser relative to a floating support. The apparatus includes a guidance mechanism secured to the floating support for enabling the riser to rotate about a horizontal axis perpendicular to a longitudinal axis of the riser; and for enabling the riser to slide longitudinally along the longitudinal axis and lateral displacement of the riser to be guided in a horizontal plane perpendicular to the longitudinal axis of the riser. The guidance mechanism includes friction pads mounted on a pad support for enabling the pads to pivot. The pads preferably cooperate with wheels such that the wheels bear against the riser and enable it to slide, and the riser comes to bear against the pads only when the wheels are moved away under the effect of lateral displacements of the riser.

    4.
    发明专利
    未知

    公开(公告)号:BR0004931A

    公开(公告)日:2000-12-26

    申请号:BR0004931

    申请日:2000-02-17

    Abstract: The present invention relates to a bottom-to-surface link system for an underwater pipe installed at great depth, the system comprising:firstly a vertical tower constituted by at least one float (5, 14) associated with an anchor system (6, 8, 16) and carrying at least one vertical riser (9, 15) suitable for going down to the sea bed (18); andsecondly at least one link pipe (4, 3) extending from said float (5, 14) to a surface support (1). According to the invention, said link pipe is a riser whose wall is constituted by a rigid steel tube, and said float (5, 14) is installed at a depth situated below the last thermocline (29).

    6.
    发明专利
    未知

    公开(公告)号:FR2833063B1

    公开(公告)日:2007-04-06

    申请号:FR0115663

    申请日:2001-12-04

    Abstract: The present invention relates to a reinforced undersea unit pipe element (1) suitable for being laid empty at great depth. The element includes a tubular wall, having at least one external peripheral reinforcing element (6, 7) creating a plurality of localized zones on the outside surface of the wall, the radial distance (d1) between the outside surface of the pipe and the longitudinal axis (XX') of the wall in the zones being greater than the outside radius (R) of the tubular wall portions lying between the successive zones in the longitudinal direction (XX'), two successive ones of the zones being spaced apart in the longitudinal direction (XX') of the tubular wall by a distance (D) equal to ½ to 4 times the outside diameter (d) of the tubular wall portions, the successive zones preferably being spaced apart regularly.

    7.
    发明专利
    未知

    公开(公告)号:FR2804441B1

    公开(公告)日:2006-09-29

    申请号:FR0001124

    申请日:2000-01-27

    Abstract: Material with adjustable buoyancy, which comprises solid particles dispersed in a binder, which binder is quasi incompressible and has a density less than water and preferably less than 0.95 and has liquid/solid phase change temperature (T0) greater than that of the surrounding aqueous medium and the solid particles have a density less than that of the binder. INDEPENDENT claims are also included for: (i) a float with adjustable buoyancy, especially for major applications, which comprises material (M); (ii) a process for producing material (M) in a liquid form where the solid particles are mixed with the binder.

    10.
    发明专利
    未知

    公开(公告)号:BR0013258A

    公开(公告)日:2002-04-16

    申请号:BR0013258

    申请日:2000-08-03

    Abstract: An apparatus for holding and guiding a floating riser relative to a floating support. The apparatus includes a guidance mechanism secured to the floating support for enabling the riser to rotate about a horizontal axis perpendicular to a longitudinal axis of the riser; and for enabling the riser to slide longitudinally along the longitudinal axis and lateral displacement of the riser to be guided in a horizontal plane perpendicular to the longitudinal axis of the riser. The guidance mechanism includes friction pads mounted on a pad support for enabling the pads to pivot. The pads preferably cooperate with wheels such that the wheels bear against the riser and enable it to slide, and the riser comes to bear against the pads only when the wheels are moved away under the effect of lateral displacements of the riser.

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