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公开(公告)号：US20190271195A1
公开(公告)日：2019-09-05
申请号：US16414852
申请日：2019-05-17
Applicant: Maersk Drilling A/S
Inventor： Michael Kannegaard , Allan McColl , Jesper Holck
Abstract: 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.
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公开(公告)号：US20180347135A1
公开(公告)日：2018-12-06
申请号：US15771688
申请日：2016-10-06
Applicant: Maersk Drilling A/S
Inventor： Michael Kannegaard
IPC: E02B17/02 , E21B19/00 , E21B33/043 , E21B33/14 , E21B41/08
CPC classification number: E21B33/035 , E02B17/02 , E21B19/002 , E21B33/043 , E21B33/143 , E21B41/08
Abstract: Without limitation, embodiments of the present invention relates to an offshore wellhead platform (100), the offshore wellhead platform (100) comprising a configurable support structure (200) for supporting upper parts of a plurality of conductors (210) through which one or more well processing tasks can be performed, wherein the configurable support structure (200) further provides a first position (150) and a second position (160) for the conductors (210), and the offshore wellhead platform (100) allows movement of an upper part of a conductor (210) between its first (150) and second position (160). In this way, efficiency when processing a plurality of wells is provided since repositioning of the well center is not needed or needed significantly less. Effectively, the wells are brought to the well center so-to-speak instead of the well center needing to be moved to each well.
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公开(公告)号：US20180313173A1
公开(公告)日：2018-11-01
申请号：US15772056
申请日：2016-10-28
Applicant: MAERSK DRILLING A/S
Inventor： William James McBEATH
IPC: E21B19/00
Abstract: Disclosed herein are embodiments of an offshore drilling rig comprising: a drill floor (107) defining a well center (123); a hoisting system configured to advance a tubular string (128) downwards through the well center (123) and to the seafloor (124) and to apply a lifting force to a tubular string (128) extending through the well center (123) and to the seafloor (124), the lifting force being large enough to support at least a major part of an apparent weight of the tubular string (128); and an anti-recoil system (218) configured to cause, in case of a sudden reduction of a load suspended from the drilling rig, the hoisting system to raise the tubular string (128) while preventing damage to the hoisting system.
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公开(公告)号：US20180202252A1
公开(公告)日：2018-07-19
申请号：US15742671
申请日：2016-07-06
Applicant: MAERSK DRILLING A/S
Inventor： John PEDERSEN , Michal Bury , Kenneth Cameron MURPHY
IPC: E21B33/035 , E21B33/038 , E21B33/06 , E21B33/064 , E21B47/06
Abstract: the present invention relates to a blowout preventer system comprising, a lower blowout preventer (BOP) stack comprising a number of hydraulic components, and a lower marine riser package (LMRP) comprising a first control pod and a second control pod adapted to provide, during use, redundant control of hydraulic components of the lower blowout preventer stack where the first and the second control pods are adapted to being connected, during use, to a surface control system and to be controlled, during use, by the surface control system, wherein the blowout preventer system further comprises at least one additional control pod connected to at least one additional surface control system and to be controlled, during use, by the additional surface control system. In this way, an improved blowout preventer system is provided.
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公开(公告)号：US20180155987A1
公开(公告)日：2018-06-07
申请号：US15578065
申请日：2016-05-30
Applicant: MAERSK DRILLING A/S
Inventor： Jens Jørgen MADSEN
IPC: E21B7/12 , E21B33/064 , E21B15/02 , B63B35/44 , B63B21/50
Abstract: A process for drilling a well into the seafloor at an offshore drilling location, in particular in arctic regions, the process comprising: drilling a top hole part of the well during a winter season where the water at the drilling location is at least partly covered by ice; and initiating drilling a lower part of the well extending into a hydrocarbon-bearing formation during a subsequent off-winter season where the water is less ice infested than during the winter season.
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Patent Agency Ranking
26.发明申请公开(公告)号：US20170254148A1
公开(公告)日：2017-09-07
申请号：US15528626
申请日：2015-11-20
Applicant: MAERSK DRILLING A/S
Inventor： Michael KANNEGAARD
CPC classification number: E21B7/128 , E02B17/0017 , E02B17/0034 , E02B17/021 , E21B7/124 , E21B11/02 , E21B15/02 , E21B29/00 , E21B29/007 , E21B29/12
Abstract: An offshore well-processing system includes a mobile offshore drilling unit and a remote well-processing device configured to be positioned on an offshore platform different from the mobile offshore drilling unit, the mobile offshore drilling unit defining at least one well centre and comprising at least one primary drill rig including at least one drill floor and at least one hoisting system for raising and lowering tubular equipment through the at least one well centre from/into a well in the seafloor. The mobile offshore drilling unit and the remote well-processing device are configured to be operationally coupled to each other; and the mobile offshore drilling unit is configured to assist in performing concurrent well-processing tasks on respective wells, including the first well processing task performed by the remote well-processing device on a first well and a second well-processing task concurrently performed by the offshore well-processing system on a second well.
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公开(公告)号：US20150252634A1
公开(公告)日：2015-09-10
申请号：US14638606
申请日：2015-03-04
Applicant: Maersk Drilling A/S
Inventor： Nikolaj GOLOVINSKIJ
CPC classification number: E21B19/004 , E02B17/021 , E02B2017/006 , E02B2017/0073 , E21B19/24
Abstract: A conductor pipe support system for a bottom-supported offshore drilling rig, the conductor pipe support system including a guide member configured for supporting a conductor pipe against horizontal movement when the conductor pipe extends from a blow-out preventer downward towards the seabed; a support member configured for vertically supporting at least a part of the load of the conductor pipe; and an access platform for allowing personnel to access at least a bottom portion of the blow-out preventer system; wherein the support member is connectable to the conductor pipe below the access platform.
Abstract translation: 一种用于底部支撑的海上钻机的导管支撑系统，所述导体管支撑系统包括引导构件，所述引导构件构造成当所述导体管从所述防喷器向下朝向所述海床延伸时支撑导体管以防止水平移动; 支撑构件，其构造成用于垂直地支撑所述导体管的所述负载的至少一部分; 以及用于允许人员至少访问防喷器系统的底部的进入平台; 其中所述支撑构件可连接到所述接入平台下方的导体管。
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公开(公告)号：US11923737B2
公开(公告)日：2024-03-05
申请号：US17287483
申请日：2019-10-22
Applicant: MAERSK DRILLING A/S
Inventor： John Røn Pederson , Martin Speiermann , Jacopo Granata , Valère Combescot , Mikael Eronen
CPC classification number: H02K21/222 , H02K7/025 , F16C32/0427 , F16C32/0474 , F16F15/30
Abstract: A flywheel system includes a rotor and a fixture. The rotor forms an aperture. The fixture includes a bottom support, a top support, and a shaft connecting the bottom support to the top support. The shaft passes through the aperture. The bottom support and the top support are outside opposite ends of the aperture. The rotor is configured to rotate about the shaft. A method for operating a flywheel system includes converting between rotational energy of a rotor and electrical energy in windings of a generator stator that is implemented in a stationary shaft passing through an aperture of the rotor, while the rotor is rotating about the shaft.
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公开(公告)号：US11639639B2
公开(公告)日：2023-05-02
申请号：US16972569
申请日：2019-06-06
Applicant: MAERSK DRILLING A/S
Inventor： Jesper Holck , Kristian E. Hansen
Abstract: 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.
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公开(公告)号：US11598161B2
公开(公告)日：2023-03-07
申请号：US16962978
申请日：2019-01-17
Applicant: MAERSK DRILLING A/S
Inventor： Konstantin Puskarskij , Kristian Hansen , Christian Schmidt
IPC: E21B19/00
Abstract: Well centre assembly for an offshore drilling rig and associated method. There is described a well centre assembly 10 for an offshore drilling rig. The well centre assembly 10 comprises a diverter assembly 16 and a movement control system 18. The movement control system 18 is operable between the diverter assembly 16 and a supporting structure 12 of the rig. In use, the movement control system 18 controls or permits relative movement between the diverter assembly 16 and the supporting structure 12. A connector such as a riser 34 connected to the diverter assembly 16 during deployment, while deployed or during retrieval of the riser 34 may experience external forces such as from tidal, wind and/or wave movement at a water surface 50, which may cause the positioning and/or orientation of the riser 34 to vary. The movement control system 18 may control the movement of the diverter assembly 16 so as to compensate for movement of the riser 34.
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