Method of emptying an undersea fluid transport pipe that is submerged and full of water

    公开(公告)号:US10823311B2

    公开(公告)日:2020-11-03

    申请号:US15975385

    申请日:2018-05-09

    Applicant: SAIPEM S.A.

    Inventor: Alexandre Bailey

    Abstract: A method of emptying an undersea fluid transport pipe (2) that is submerged and full of water, by pumping out at least a portion of the water present inside the submerged pipe using a submersible pump unit (6) connected to a point of the pipe, the volume of water pumped out from the inside of the pipe being compensated by a gas injected under pressure into the submerged pipe from a point (18) thereof that is situated higher than the connection point (12; 14) to the submersible pump unit. The invention also provides an installation for performing such a method.

    Method for draining a fluid-transporting underwater pipe which is submerged and filled with water

    公开(公告)号:US10451196B2

    公开(公告)日:2019-10-22

    申请号:US15771059

    申请日:2016-09-28

    Applicant: SAIPEM S.A.

    Inventor: Alexandre Bailey

    Abstract: The invention provides a method of emptying an undersea fluid transport pipe (2) that is submerged and full of water, the method comprising pumping out at least a portion of the water present inside the submerged pipe by means of a submersible pump unit (6) connected to a point of the pipe, the volume of water pumped out from the inside of the pipe being compensated by a gas injected under pressure into the submerged pipe from a point (18) thereof that is situated higher than the connection point (12; 14) to the submersible pump unit. The invention also provides an installation for performing such a method.

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