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    MULTI-MODE PUMPED RISER ARRANGEMENT AND METHODS
    1.
    发明公开
    MULTI-MODE PUMPED RISER ARRANGEMENT AND METHODS 审中-公开

    公开(公告)号：US20240218746A1

    公开(公告)日：2024-07-04

    申请号：US18425898

    申请日：2024-01-29

    申请人： Enhanced Drilling AS

    发明人： Per Christian STENSHORNE ,  David Edward SMITH ,  Gustav Olov SKÄRGÅRD

    IPC分类号： E21B17/01 ,  E21B21/00 ,  E21B21/08

    CPC分类号： E21B17/01 ,  E21B21/001 ,  E21B21/082

    摘要： A riser system in the form of a pumped riser, i.e. a riser having an outlet from the riser at a depth below the surface of a body of water, where the outlet is coupled to a return pump to return fluid from the riser to the surface, and various operational methods to facilitate greater versatility when performing hydrocarbon drilling related operations. A sealing element to seal an annulus of the riser, and a by-pass around the sealing element. Various methods make it possible to switch between open mode and closed mode, and vice versa, monitoring leakage across the sealing element, as well as performing other operations exploiting the advantages of the two different modes.

    RISER CLAMP
    3.
    发明公开
    RISER CLAMP 审中-公开

    公开(公告)号：US20240167344A1

    公开(公告)日：2024-05-23

    申请号：US18283212

    申请日：2022-03-22

    申请人： MHWIRTH AS

    发明人： JOHN MAGNE JOHNSEN ,  PATRICK NILSSON

    IPC分类号： E21B17/10 ,  E21B17/01

    CPC分类号： E21B17/1035 ,  E21B17/01

    摘要： A riser clamp for supporting fluid pipes in parallel with and spaced from an external surface of a tubular riser. The riser clamp includes at least one body portion which is arrangeable to form a clamp body which is substantially circular or partially circular, and a pipe saddle part. The clamp body encircles a clamp axis. The at least one body portion has an external surface which faces radially outwards and an internal surface which faces radially inwards. The pipe saddle part is provided to be separate and substantially planar, and is arranged to extend radially outwardly from the clamp body.

    System and method for connecting a termination body to a portion of a riser
    7.
    发明授权
    System and method for connecting a termination body to a portion of a riser 有权

    公开(公告)号：US11867001B2

    公开(公告)日：2024-01-09

    申请号：US17774242

    申请日：2020-11-18

    申请人： Future Production AS

    发明人： Øystein Christensen

    IPC分类号： E21B17/01 ,  E21B17/08

    CPC分类号： E21B17/01 ,  E21B17/085

    摘要： A system has a riser and a termination body, the termination body being arranged to connect at least one first conduit arranged along the riser and at least one second conduit extending from the riser to a drilling rig, where the termination body has a first clamp body and a second clamp body arranged for mutual joining and radial enclosure of a portion of the riser, and at least one receptacle block for connecting the at least first conduit, where the portion of the riser is unsplit. A method for connecting the termination body to the riser is also disclosed.

    Riser surge protection system
    8.
    发明授权
    Riser surge protection system 有权

    公开(公告)号：US11846155B2

    公开(公告)日：2023-12-19

    申请号：US17794162

    申请日：2021-01-12

    申请人： EQUINOR ENERGY AS

    发明人： Tor Kindsbekken Kjeldby

    IPC分类号： E21B17/01 ,  E21B34/00

    CPC分类号： E21B34/00 ,  E21B17/01

    摘要： A system for liquid surge protection of a subsea riser having a horizontal portion on the seabed and a sag bend portion includes: a flexible tubing having a top end and a bottom end; a plurality of autonomous valves configured to permit liquid to pass through into the flexible tubing, wherein the autonomous valves are arranged between the top end and the bottom end of the tubing; and an inlet device coupled to the bottom end of the flexible tubing, wherein said inlet device is biased against a bottom wall the riser.

    Swivel for subsea string
    9.
    发明授权
    Swivel for subsea string 有权

    公开(公告)号：US11802446B2

    公开(公告)日：2023-10-31

    申请号：US17596675

    申请日：2020-06-23

    申请人： ONESUBSEA IP UK LIMITED

    发明人： John Meijer

    IPC分类号： E21B17/05 ,  E21B17/01

    CPC分类号： E21B17/05 ,  E21B17/01

    摘要： An improved swivel with increased sealing capability at fluid pressures up to 20 ksi and at fluid temperatures as high as 250° F. and as low as 35° F. The swivel may be relatively compact, being less than 8 feet in overall length and can operate unpressurized with axial loads of at high as 1,400,000 lbs. The swivel may comprise a swivel mandrel rotationally coupled with a swivel housing. Rotational bearings units can be securely held using cartridge carriers. A pressure seal may be formed between the swivel mandrel and swivel housing via a redundant seal stack.

    PRESSURE MANAGEMENT SUB-SYSTEMS FOR SUBSEA MANAGED PRESSURE OPERATIONS
    10.
    发明申请
    PRESSURE MANAGEMENT SUB-SYSTEMS FOR SUBSEA MANAGED PRESSURE OPERATIONS 有权

    公开(公告)号：US20230135617A1

    公开(公告)日：2023-05-04

    申请号：US18148485

    申请日：2022-12-30

    申请人： BLADE ENERGY PARTNERS, LTD.

    发明人： OSCAR R. GABALDON ,  PATRICK R. BRAND

    IPC分类号： E21B33/035 ,  E21B17/01

    摘要： Systems and processes for subsea marine managed pressure operations. One system includes a modified riser joint configured to fluidly connect inline with one or more riser joints. The modified riser joint and the one or more riser joints are connected to form a riser connecting a floating vessel with a wellhead. The system further includes a subsea pressure management sub-system configured to be operatively and fluidly connected to the modified riser joint at a subsea location.