公开(公告)号：US20180038168A1

公开(公告)日：2018-02-08

申请号：US15555296

申请日：2016-03-03

Applicant: SAIPEM S.A.

Inventor： Giulio FATICA ,  Gianmarco ROTA ,  Roberto PALLADINI

IPC: E21B17/01 ,  F16L1/26 ,  F16L1/15 ,  E21B19/00 ,  E21B43/01

CPC classification number: E21B17/012 ,  E02B2017/0095 ,  E21B19/002 ,  E21B43/01 ,  F16L1/15 ,  F16L1/24 ,  F16L1/26

Abstract: An installation of bottom-to-surface connections of at least two undersea pipes (11-1, 11-2) resting on the sea bottom (10), and a rigid pipe (1-1, 1-2) constituted by a vertical riser having its bottom end (1a) fastened to a base (9-1, 9-2) at the sea bottom (10), and having its top end (1b) tensioned by an immersed float (4-1, 4-2); and a flexible connection pipe (2-1, 2-2) providing the connection between a common floating support (12) and the top end (1b) of the vertical riser via a junction device (3-1, 3-2; wherein two hybrid towers are connected together by at least one rigid separator bar (5) having a length not less than the diameter of the larger-diameter float.

公开(公告)号：US20200316876A1

公开(公告)日：2020-10-08

申请号：US16303581

申请日：2017-04-28

Applicant: SAIPEM S.A.

Inventor： Giulio FATICA ,  Taoufik Majdoub

IPC: B29C65/00 ,  F16L47/03

Abstract: A method of connecting together two unit elements (4, 4′) of a fluid transport pipe, each unit pipe element being covered in an outer insulating coating (6, 6′) made of a thermoplastic material, with the exception of an end portion that does not have an outer insulating coating. The method includes: a step of welding together two abutting unit pipe elements; a step of positioning an annular sleeve (14) around a cut-back and in part around the outer insulating coatings of the two unit pipe elements, the sleeve being made of a thermoplastic material; a step of fastening the sleeve in sealed manner by weld bonding on the outer insulating coatings; and a step of applying an external pressure on the sleeve to enable it to be deformed elastically and match the shape of the respective end portions of the two unit pipe elements.

公开(公告)号：US20200307113A1

公开(公告)日：2020-10-01

申请号：US16303565

申请日：2017-05-16

Applicant: SAIPEM S.A.

Inventor： Giulio FATICA ,  Taoufik Majdoub

IPC: B29C65/16 ,  F16L1/26 ,  F16L13/02 ,  F16L58/18 ,  F16L59/20 ,  B29C65/00

Abstract: The invention provides a method of connecting together two unit elements (4, 4′) of a fluid transport pipe, each unit pipe element being made of metal alloy and being covered in an outer insulating coating (6, 6′) made of a thermoplastic material, with the exception of an end portion that does not have an outer insulating coating, the method comprising a step of butt-welding together two unit pipe elements at their end portions having no outer insulating coating, a step of mechanically assembling at least two rigid shells (14, 16) made of a thermoplastic material on the end portions of the unit pipe elements not having an outer insulating coating, and a step of keeping the shells sealed against the outer insulating coating of the two unit pipe elements.