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    Subsea infrastructure and method of decommissioning subsea infrastructure
    2.
    发明授权
    Subsea infrastructure and method of decommissioning subsea infrastructure 有权

    公开(公告)号：US12055257B2

    公开(公告)日：2024-08-06

    申请号：US17551122

    申请日：2021-12-14

    申请人： Subsea 7 Limited

    发明人： Arnbjorn Joensen ,  Nwabueze Samuel Ogbodo ,  Shona Margaret Manson ,  Emma Claire Taylor ,  Dwayne Hewitt Hopkins ,  John Joseph Ryan

    IPC分类号： F16L1/16 ,  F16L1/24 ,  F16L55/07

    CPC分类号： F16L55/07 ,  F16L1/166 ,  F16L1/24

    摘要： A method of dewatering a subsea pipeline bundle assembly before lifting the assembly from the seabed and an elongate carrier pipe comprising at least one internal fall that slopes downwardly towards a drainage outlet and at least one venturi formation that is aligned with the drainage outlet. The method comprises adding discrete buoyancy to the elongate carrier pipe that elevates the carrier pipe disposed between drainage outlets of the assembly. Each elevated portion defines inclined falls that slope downwardly in opposed longitudinal directions toward the respective outlets. Water within the carrier pipe drains down the falls toward the outlets. Injecting a dewatering fluid into the carrier pipe promotes expulsion of water from the pipe through the outlets by downward displacement of the water. Drainage may be assisted by a venturi effect driven by accelerating the flow of the dewatering fluid at a location in line with an outlet.

    STACKABLE FLOAT ASSEMBLY
    3.
    发明公开
    STACKABLE FLOAT ASSEMBLY 审中-公开

    公开(公告)号：US20240159112A1

    公开(公告)日：2024-05-16

    申请号：US18419863

    申请日：2024-01-23

    申请人： Eddy Pump Corporation

    发明人： Daniel WAHLGREN

    IPC分类号： E21B17/01 ,  F16L1/24

    CPC分类号： E21B17/012 ,  F16L1/24

    摘要： A float includes a body portion having a first side surface and a second side surface, an inner surface and an outer surface, the first and second side surfaces being generally planar and forming an acute angle therebetween, the inner and outer surfaces being non-planar, and the body portion configured such that when positioned laterally adjacent an inverted second float and vertically adjacent a third float, the first side surface of the float abuts a surface of the inverted second float, and the inner surface of the float engages an outer surface of the third float.

    CLAMP AND CLAMPING
    5.
    发明公开
    CLAMP AND CLAMPING 审中-公开

    公开(公告)号：US20230304605A1

    公开(公告)日：2023-09-28

    申请号：US18040109

    申请日：2021-07-29

    申请人： BAKER HUGHES ENERGY TECHNOLOGY UK LIMITED

    发明人： Andrew ARNOLD

    IPC分类号： F16L1/20 ,  F16L1/24 ,  F16L3/10 ,  F16M13/02

    CPC分类号： F16L1/20 ,  F16L1/24 ,  F16L3/1091 ,  F16M13/02 ,  E21B17/012

    摘要： An apparatus for securing to an outer surface of a segment of flexible pipe body, comprising an outer clamp portion around a region of flexible pipe body and comprising a plurality of outer body members each having an inner surface; and an inner clamp portion in an abutting relationship between the outer clamp portion and said flexible pipe body, comprising a plurality of inner body members each having an outer surface that comprises a mating region that has a shape that mates with a shape of a corresponding mating region of the inner surface of the outer clamp portion. Each mating region comprises at least one clamping surface region that in an imaginary plane that extends through and includes a primary axis of the pipe body, arranged oblique to the primary axis when the inner clamp portion is between the outer clamp portion and the pipe body.

    CLAMP ASSEMBLY
    7.
    发明申请
    CLAMP ASSEMBLY 审中-公开

    公开(公告)号：US20180252334A1

    公开(公告)日：2018-09-06

    申请号：US15756308

    申请日：2016-08-16

    申请人： Advanced Insulation Limited

    发明人： Martin Steven HARROP ,  Radcliffe Lewis ,  Stewart Ian MORLEY

    IPC分类号： F16L1/24 ,  F16B2/06

    CPC分类号： F16L1/24 ,  E21B17/012 ,  F16B2/065

    摘要： A clamping arrangement 10 of a buoyancy clamp assembly. The arrangement 10 includes three identical arcuate members 12 engageable together to define a ring. Each of the arcuate members 12 has three discrete resilient members 14 engageable on for instance a pipe 68. Engagement members 42 are provided extendable between adjacent pair of arcuate members 12 to prevent relative twisting of adjacent arcuate members 12.

    Flotation System and Method
    9.
    发明申请
    Flotation System and Method 审中-公开

    公开(公告)号：US20180016852A1

    公开(公告)日：2018-01-18

    申请号：US15718603

    申请日：2017-09-28

    申请人： William von Eberstein ,  Christopher Eric von Eberstein

    发明人： Christopher Eric von Eberstein

    IPC分类号： E21B17/01 ,  F16L1/24 ,  E21B17/10

    CPC分类号： E21B17/012 ,  E21B17/1078 ,  E21B33/14 ,  F16L1/24

    摘要： A flotation system includes one or more floatation modules, each having a first section and a second section, each having an internal core made of a buoyant material. The first section includes two end faces and a projection extending from one of the end faces. The projection has a contoured profile. The second section includes two end faces and a reciprocal recess in one of the end faces. The end faces of the first section engage the end faces of the second section such that the projection engages the reciprocal recess in a mating engagement. The outer surface of the flotation module include one or more grooves providing a pathway for the flow of circulation fluid. The floatation system may be attached to a tubular string during inner string cementing operations to reduce the load applied to the platform.