APPARATUS FOR RECOVERING, BY MEANS OF A PIPELAYING CRAFT, PIPES LAID ON DEEP SEA BEDS

    公开(公告)号:AU523174B2

    公开(公告)日:1982-07-15

    申请号:AU4539579

    申请日:1979-03-21

    Applicant: SAIPEM SPA

    Inventor: SCODINO AMBROGIO

    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.

    33.
    发明专利
    未知

    公开(公告)号:FI60933C

    公开(公告)日:1982-04-13

    申请号:FI33574

    申请日:1974-02-07

    Applicant: SAIPEM SPA

    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.

    APPARATUS FOR RECOVERING, BY MEANS OF A PIPELAYING CRAFT, PIPES LAID ON DEEP SEA BEDS

    公开(公告)号:CA1092375A

    公开(公告)日:1980-12-30

    申请号:CA324167

    申请日:1979-03-26

    Applicant: SAIPEM SPA

    Inventor: SCODINO AMBROGIO

    Abstract: "IMPROVED APPARATUS FOR RECOVERING, BY MEANS OF A PIPELAYING CRAFT, PIPES LAID ON DEEP SEA BEDS" 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.

    35.
    发明专利
    未知

    公开(公告)号:FR2458021A1

    公开(公告)日:1980-12-26

    申请号:FR8011730

    申请日:1980-05-27

    Applicant: SAIPEM SPA

    Inventor: SCODINO AMBROGIO

    Abstract: Apparatus for supporting pipe suspended over depressions in the sea bed and method of, comprising a service modular unit capable of being completely recovered and another modular unit intended for properly supporting the pipe: the two modular units are so connected that they can be disjointed under a command from the pipe-laying barge. The service modular unit is equipped with a recoverable assembly for placing the supporting modular unit in a correct vertical posture on the sea bed and for vertically holding such supporting modular until the pile-driving operation has been satisfactory completed.

    36.
    发明专利
    未知

    公开(公告)号:DE3020431A1

    公开(公告)日:1980-12-04

    申请号:DE3020431

    申请日:1980-05-29

    Applicant: SAIPEM SPA

    Inventor: SCODINO AMBROGIO

    Abstract: Apparatus for supporting pipe suspended over depressions in the sea bed and method of, comprising a service modular unit capable of being completely recovered and another modular unit intended for properly supporting the pipe: the two modular units are so connected that they can be disjointed under a command from the pipe-laying barge. The service modular unit is equipped with a recoverable assembly for placing the supporting modular unit in a correct vertical posture on the sea bed and for vertically holding such supporting modular until the pile-driving operation has been satisfactory completed.

    37.
    发明专利
    未知

    公开(公告)号:NO801550L

    公开(公告)日:1980-12-01

    申请号:NO801550

    申请日:1980-05-23

    Applicant: SAIPEM SPA

    Inventor: SCODINO AMBROGIO

    Abstract: Apparatus for supporting pipe suspended over depressions in the sea bed and method of, comprising a service modular unit capable of being completely recovered and another modular unit intended for properly supporting the pipe: the two modular units are so connected that they can be disjointed under a command from the pipe-laying barge. The service modular unit is equipped with a recoverable assembly for placing the supporting modular unit in a correct vertical posture on the sea bed and for vertically holding such supporting modular until the pile-driving operation has been satisfactory completed.

    38.
    发明专利
    未知

    公开(公告)号:DE2912781A1

    公开(公告)日:1980-02-07

    申请号:DE2912781

    申请日:1979-03-30

    Applicant: SAIPEM SPA

    Inventor: SCODINO AMBROGIO

    Abstract: This invention relates to an apparatus for supporting pipes suspended over depressions in the sea bed, including those situated at great depth, and to the method for installing it on the sea bed. The apparatus according to the invention consists of a completely recoverable service module and a support mobile which serves to support the pipe and remains fixed on the sea bed, said modules being connected together in such a manner that they can be separated by simple controls from the depot ship. The method according to the invention comprises in turn a number of operating steps, through which the entire apparatus is initially lowered and positioned on the sea bed and the service module is then recovered by the depot ship.

    APPARATUS FOR RECOVERING, BY MEANS OF A PIPELAYING CRAFT, PIPES LAID ON DEEP SEA BEDS

    公开(公告)号:AU4539579A

    公开(公告)日:1980-01-31

    申请号:AU4539579

    申请日:1979-03-21

    Applicant: SAIPEM SPA

    Inventor: SCODINO AMBROGIO

    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.

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