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    42.
    发明专利
    未知

    公开(公告)号：DE2913335B2

    公开(公告)日：1981-02-26

    申请号：DE2913335

    申请日：1979-04-03

    Applicant: SAIPEM S.P.A., MAILAND (ITALIEN)

    Inventor： SCODINO, AMBROGIO, SAN DONATO MILANESE, MAILAND (ITALIEN)

    IPC: F16L1/12 ,  B63B35/03 ,  B63C11/00 ,  F16L1/16 ,  F16L55/136 ,  F16L1/04 ,  B63C7/00

    Abstract: For lifting from deep sea beds a pipeline trunk, a device is disclosed which is composed by a compact framework of square outline which supports a sealing and pulling head and paired jaw assemblies having sloping surface seats to engage the outer surface of the pipe to be lifted, said jaws being actuated by hydraulic and pneumatic motive means so as to grip the pipe surface firmly. A pipe-cutting device is also provided, which has two discrete cutting units, and the sealing and pulling head is removable from said frame and can be both slid and rotated as to position it correctly coaxially with the pipe trunk.

    46.
    发明专利
    未知

    公开(公告)号：DK138961C

    公开(公告)日：1979-05-07

    申请号：DK623473

    申请日：1973-11-19

    Applicant: SAIPEM S.P.A.

    Inventor： SILVESTRI A ,  GARGATAGLI G

    IPC: F16L1/12 ,  B63B35/03 ,  F16L1/20 ,  F16L1/225

    Abstract: Apparatus for laying a pipeline of large diameter on a deep sea-bed without kinking or excessive bending includes a floating vessel having a discharge track sloping downwardly toward the stern to support the outer end of a pipeline for sliding movement and mechanism for imparting tension to a pipeline is mounted on the discharge track. A stinger, adapted to slidingly support a pipeline as it is being laid, is pivotably connected to the discharge end of the track and is formed from articulated ramp segments, each buoyantly supported independently of the others so that its depth in the water may be regulated, whereby the stinger may be caused to extend downwardly from the stern of the vessel along a predetermined slope.

    47.
    发明专利
    未知

    公开(公告)号：DK138918C

    公开(公告)日：1979-04-30

    申请号：DK81974

    申请日：1974-02-15

    Applicant: SAIPEM S.P.A.

    Inventor： SCODINO A ,  ZILIANI G

    IPC: G01M3/28 ,  F16L1/14 ,  F16L55/00 ,  F16L55/11 ,  F17D3/08 ,  G01M20060101 ,  G01M3/00 ,  G01M3/26

    Abstract: A pipeline closing head, for use in testing a pipeline after it has been laid on a submerged bed by subjecting the pipeline temporarily to internal pressure through the use of filling and emptying balls, is constituted by a hollow cylindrical body having a crowned closing element at one end and containing, at its other end, an air tight chamber housing the filling and emptying balls. Ducts and control valves through which fluid is supplied to said chamber to activate the filling and emptying balls and supply fluid pressure to the interior of the pipeline are housed within the cylindrical body so that they do not overhang the closing head, which may slide along a conventional ramp for the pipeline.

    48.
    发明专利
    未知

    公开(公告)号：DE2502020C3

    公开(公告)日：1979-02-15

    申请号：DE2502020

    申请日：1975-01-20

    Applicant: SAIPEM S.P.A., MAILAND (ITALIEN)

    Inventor： CASSONE, GIORGIO ,  SCOLARI, FRANCO

    IPC: B63B21/50 ,  G05D1/02

    Abstract: A drilling ship is maintained over a deep sea well in a drilling position defined by an inner circle and an outer circle having the well as their center. The ship is connected to a set of anchors fastened to the sea bed and adapted, when the ship is subjected to the action of external forces tending to change its position and of not more than a predetermined magnitude, to restrain the ship from moving beyond the confines of the inner circle. The ship is equipped with a set of adjustable propellers adapted, in conjunction with the anchors, to position the ship within the confines of the outer circle when the external forces acting on the ship to change its position exceed the predetermined magnitude. The operation of the propellers is controlled by a computer to which values are fed which are determined by detectors of the position of the ship and of external forces acting upon it.

    50.
    发明专利
    未知

    公开(公告)号：DE3605161C2

    公开(公告)日：1988-08-11

    申请号：DE3605161

    申请日：1986-02-18

    Applicant: SAIPEM S.P.A., MAILAND/MILANO, IT

    Inventor： SILVESTRI, ANTONIO, S. DONATO MILANESE, IT

    IPC: E02B17/00 ,  E02B17/08 ,  E02B17/02

    Abstract: A process and apparatus for installing the enbloc superstructure of an offshore platform on the fixed legs emerging from water of the lower structure or jacket including loading the whole superstructure on a vertically movable support platform provided on the deck of a semisubmersible raft or barge, completely submerging the raft in the vicinity of the jacket, the stability being maintained by vertical buoyancy tanks on the raft deck, and lifting the support platform and the superstructure by activating related hydraulic lift cylinders, to a height higher than that of the protruding ends of the jacket leg, independently from wave-motion of sea. Subsequently, cylindrical lift pillars slide, by means of hydropneumatic jacks, within tubular columns provided in the superstructure until the conical ends of the pillars enter corresponding seats in the jacket legs and, during a moment of smooth sea, the superstructure is lifted to the desired height using the hydropneumatic jacks, while at the same time, the support platform is rapidly lowered, and the raft is ballasted.

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