OFFSHORE DRILLING RIG AND A METHOD OF OPERATING THE SAME

    公开(公告)号:US20190271195A1

    公开(公告)日:2019-09-05

    申请号:US16414852

    申请日:2019-05-17

    摘要: An offshore drilling rig includes a drill deck, at least one primary well center and a diverter system arranged below the primary well center, a drilling support structure extending upwardly from the drill deck and above the primary well center and the other work center and a first and a second hoisting system supported by the drilling support structure and being adapted for raising or lowering a first and a second load carrier, respectively, and where the offshore drilling rig includes a positioning system adapted for selectively positioning at least the first load carrier in at least a first or a second horizontal position different from the first horizontal position, where the first load carrier in the first horizontal position is positioned above the primary well center, and in the second horizontal position is positioned above the other work center.

    Drilling or work-over rig comprising an operational control and/or state unit and a computer-implemented method of providing operational control and/or state

    公开(公告)号:US11364979B2

    公开(公告)日:2022-06-21

    申请号:US17176532

    申请日:2021-02-16

    摘要: A drilling or work-over vessel (10) is disclosed comprising a number of operational equipment (300), wherein the drilling or work-over vessel comprises at least one operational control and/or state unit (100) comprising at least one processing unit (102), wherein the at least one operational control and/or state unit (100) comprises or are in connection with a memory and/or storage (103), and at least one sensor unit (200), wherein the at least one sensor unit (200) is adapted to obtain one or more measured physical values and to provide data representing the one or more measured physical values and/or derived values thereof to the at least one operational control and/or state unit (100), the memory and/or storage (103) comprises a data representation of a computational physics model of at least a part of the drilling or work-over rig, and the at least one processing unit (102) is adapted to derive data representing an estimation of one or more physical states (such as defined by limits of forces, relative motion between operational equipment and vessel, or between other two pieces of operational equipment) estimated to act on at least one operational equipment (300) in response to the data representing the one or more measured physical values and/or derived values thereof as provided by the at least one sensor unit (200).

    Drilling rig hoisting system
    3.
    发明授权

    公开(公告)号:US11339615B2

    公开(公告)日:2022-05-24

    申请号:US16486656

    申请日:2018-02-19

    发明人: Jesper Holck

    IPC分类号: E21B19/06 B66D3/08 E21B19/00

    摘要: A hoisting system for a drilling rig, which has a crown block for attaching to a derrick, the crown block comprising a plurality of sheaves; a travelling block suspended from the crown block via a hoisting cable, the travelling block comprising a plurality of sheaves and being connectable with a payload, the travelling block being arranged to move along a workpath; the hoisting system further comprising: a floating block comprising a plurality of sheaves reeved on the hoisting cable; wherein the floating block is configured to move between: a first arrangement in which the floating block is fixed relative to the crown block; and a second arrangement in which the floating block is fixed relative to the travelling block; wherein the hoisting system is arranged such that, when the floating block is in one of the first or second arrangement, the sheaves of the floating block overlap a sheave of the crown block or travelling block in a direction of the workpath.

    Robotic apparatus for performing drill floor operations

    公开(公告)号:US11293236B2

    公开(公告)日:2022-04-05

    申请号:US16979311

    申请日:2019-03-11

    发明人: Jesper Holck

    IPC分类号: E21B19/16 E21B19/10

    摘要: A robotic apparatus for performing drill floor operations comprises a support arrangement and at least one manipulator arm. The at least one manipulator arm is configured to carry an end effector configured to manipulate one or more of tubing, tools and/or equipment on a drill floor or pipe deck of an oil and gas rig in order to perform a given drill floor operation.

    Offshore floating vessel and a method of operating the same

    公开(公告)号:US10301152B2

    公开(公告)日:2019-05-28

    申请号:US15471970

    申请日:2017-03-28

    发明人: Jesper Holck

    摘要: An offshore floating vessel includes a hoisting system including a drive for moving connecting device and emergency brakes to inhibit motion of the connecting device; wherein the hoisting system is to be operated at least in a hoisting mode and in an active heave compensation mode; wherein hoisting system is to perform an active heave compensation when operated in the active heave compensation mode and to operate without active heave compensation when operated in the hoisting mode; wherein the emergency brakes are operable in a normally-energized mode including a de-energized state where the emergency brakes engage so as to inhibit motion of the connecting device relative to the floating vessel; wherein each emergency brake of the plurality of hydraulic emergency brakes has associated with it a separate accumulator reservoir.

    Offshore drilling rig and a method of operating the same

    公开(公告)号:US10323467B2

    公开(公告)日:2019-06-18

    申请号:US14777325

    申请日:2014-03-17

    摘要: An offshore drilling rig comprising a drill deck, at least one primary well center and a diverter system arranged below the primary well center, a drilling support structure extending upwardly from the drill deck and above the primary well center and the other work center and a first and a second hoisting system supported by the drilling support structure and being adapted for raising or lowering a first and a second load carrier, respectively, and where the offshore drilling rig comprises a positioning system adapted for selectively positioning at least the first load carrier in at least a first or a second horizontal position different from the first horizontal position, where the first load carrier in the first horizontal position is positioned above the primary well center, and in the second horizontal position is positioned above the other work center.

    Offshore drilling rig and a method of operating the same

    公开(公告)号:US10202808B2

    公开(公告)日:2019-02-12

    申请号:US15647362

    申请日:2017-07-12

    摘要: An offshore drilling rig includes a drill deck, at least one work center arranged in the drill deck; a diverter system operatively connectable at least to a riser extending towards the seafloor; a hoisting system adapted for raising or lowering tubular equipment through the work center; wherein the offshore drilling rig includes a first positioning system configured for positioning at least the work center and/or the diverter system and/or a riser tensioning system selectively at a first horizontal position and a second horizontal position, different from the first horizontal position; and wherein the hoisting system is operable to raise or lower tubular equipment through the work center when said work center is positioned at said first horizontal position.

    Method and system for mitigating cable wear in a hoisting system

    公开(公告)号:US11639639B2

    公开(公告)日:2023-05-02

    申请号:US16972569

    申请日:2019-06-06

    摘要: A method for mitigating the effects of cable wear in an active heave compensated hoisting system of an offshore vessel in a locked to bottom mode of operation is disclosed. The method comprises supporting an upper end of a string which is connected to a subsea well from a travelling block of the hoisting system, wherein the travelling block is suspended from a crown block via a cable. The method further comprises operating an active heave compensation system to control a drawworks of the hoisting system to pay in and out the cable to compensate for motion of the offshore vessel and maintain a target overpull in the string. The method further comprises adjusting a ballast system of the offshore vessel to vary the draft of the vessel, and controlling the drawworks in accordance with the variation in the draft of the vessel to cause a length of cable to slip through the hoisting system and maintain the target overpull in the string.

    DRILLING OR WORK-OVER RIG COMPRISING AN OPERATIONAL CONTROL AND/OR STATE UNIT AND A COMPUTER-IMPLEMENTED METHOD OF PROVIDING OPERATIONAL CONTROL AND/OR STATE

    公开(公告)号:US20210188408A1

    公开(公告)日:2021-06-24

    申请号:US17176532

    申请日:2021-02-16

    摘要: A drilling or work-over vessel (10) is disclosed comprising a number of operational equipment (300), wherein the drilling or work-over vessel comprises at least one operational control and/or state unit (100) comprising at least one processing unit (102), wherein the at least one operational control and/or state unit (100) comprises or are in connection with a memory and/or storage (103), and at least one sensor unit (200), wherein the at least one sensor unit (200) is adapted to obtain one or more measured physical values and to provide data representing the one or more measured physical values and/or derived values thereof to the at least one operational control and/or state unit (100), the memory and/or storage (103) comprises a data representation of a computational physics model of at least a part of the drilling or work-over rig, and the at least one processing unit (102) is adapted to derive data representing an estimation of one or more physical states (such as defined by limits of forces, relative motion between operational equipment and vessel, or between other two pieces of operational equipment) estimated to act on at least one operational equipment (300) in response to the data representing the one or more measured physical values and/or derived values thereof as provided by the at least one sensor unit (200).

    Dual activity off-shore drilling rig

    公开(公告)号:US10233703B2

    公开(公告)日:2019-03-19

    申请号:US15813268

    申请日:2017-11-15

    发明人: Jesper Holck

    摘要: An offshore drilling rig configured for lowering and/or raising a string of tubular equipment into a subsea borehole. The drilling rig includes a drill deck; a first hoisting system being adapted for raising or lowering a first load carrier along a vertical first hoisting axis, wherein the first hoisting system is supported by a first support structure extending upwardly relative to the drill deck; a second hoisting system being adapted for raising or lowering a second load carrier along a vertical second hoisting axis located apart from the first hoisting axis, wherein the second hoisting system is supported by a second support structure extending upwardly relative to the drill deck; and a joint operations well center on the drill deck. During joint operations, the first and second hoisting axes are preferably located apart from the joint operations well center.