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公开(公告)号：US20190194895A1
公开(公告)日：2019-06-27
申请号：US15771710
申请日：2016-10-31
申请人： Maersk Drilling A/S , TOTAL S.A.
发明人： Michael Kannegaard , Hicham Chajai
IPC分类号： E02B17/02 , E21B33/035 , E21B33/043 , E21B19/00 , E21B33/14
CPC分类号： E02B17/02 , E21B19/002 , E21B19/004 , E21B33/035 , E21B33/043 , E21B33/143 , E21B41/08
摘要： A method for forming an offshore well comprises forming a well structure (1) which includes a lower well portion extending below a seabed and an upper well portion (2) extending upwardly between the seabed (18) and a terminating upper end (3) of the well structure, wherein the well structure comprises a plurality of concentrically arranged tubular strings (22) and at least one annulus (48) defined therebetween. The method includes steps for minimising the bending stiffness of the upper well portion. In one example minimising the bending stiffness of the upper well portion may comprise partially filling at least one annulus with cement (52) to a height which: is intermediate the seabed and the terminating upper end of the well structure. In another example minimising the bending stiffness of the upper well portion may comprise providing a cement disruptor within at least one annulus and locating cement within said at least one annulus to define a cement sheath, wherein the cement disruptor, for example sleeve (122), reduces resistance of at least a portion of the cement sheath to bending of the upper well portion. In a further example minimising the bending stiffness of the upper well portion may comprise locating a flexible material within at least one annulus; and In a further example minimising the bending stiffness of the upper well portion may comprise varying the bending stiffness along at least one of the plurality of tubular strings.
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公开(公告)号：US20190063028A1
公开(公告)日：2019-02-28
申请号：US15771684
申请日：2016-10-31
申请人： Maersk Drilling A/S , TOTAL S.A.
摘要： An offshore platform for use in combination with an offshore rig comprises an upper deck defining an upper deck aperture which is alignable with a rig aperture of the offshore rig, when said offshore rig extends over the upper deck, to permit objects to extend between the offshore rig and through the upper deck. The offshore platform further includes a sheath arrangement aligned with the upper deck aperture and extending upwardly relative to the upper deck to be alignable with the rig aperture, wherein the sheath arrangement defines a confinement zone for confining objects which pass downwardly from the offshore rig through the rig aperture.
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公开(公告)号：US09856705B2
公开(公告)日：2018-01-02
申请号：US14760440
申请日：2014-01-13
申请人： Maersk Drilling A/S
发明人： Michael Kannegaard , Allan McColl
CPC分类号： E21B19/002 , E21B15/02 , E21B19/143 , E21B19/155
摘要： Embodiments of an offshore drilling rig including—a drill floor deck having a hole defining a first well center;—a first mast upwardly extending relative to the drill floor deck;—a first hoisting system supported by the first mast and configured for hoisting and lowering tubular equipment through the first well center; wherein the load bearing structure of the first hoisting system is displaced from and located on a first side of the first well center;—first pipe handling equipment for moving tubular equipment to the first hoisting system so as to allow the first hoisting system to hoist or lower the tubular equipment through the first well center; wherein the first pipe handling equipment is operable to move tubular equipment at least partly underneath the load bearing structure and/or through a gap formed in said load bearing structure.
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公开(公告)号：US11028549B2
公开(公告)日：2021-06-08
申请号：US15771688
申请日：2016-10-06
IPC分类号： E02B17/02 , E21B33/035 , E21B33/043 , E21B33/14 , E21B41/08 , E21B19/00
摘要： 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：US10907316B2
公开(公告)日：2021-02-02
申请号：US15771684
申请日：2016-10-31
摘要： An offshore platform for use in combination with an offshore rig comprises an upper deck defining an upper deck aperture which is alignable with a rig aperture of the offshore rig, when said offshore rig extends over the upper deck, to permit objects to extend between the offshore rig and through the upper deck. The offshore platform further includes a sheath arrangement aligned with the upper deck aperture and extending upwardly relative to the upper deck to be alignable with the rig aperture, wherein the sheath arrangement defines a confinement zone for confining objects which pass downwardly from the offshore rig through the rig aperture.
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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
申请人： Maersk Drilling A/S
发明人： Michael Kannegaard , Allan McColl , Jesper Holck
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.
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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
申请人： Maersk Drilling A/S
发明人： Michael Kannegaard
IPC分类号： E02B17/02 , E21B19/00 , E21B33/043 , E21B33/14 , E21B41/08
CPC分类号： E21B33/035 , E02B17/02 , E21B19/002 , E21B33/043 , E21B33/143 , E21B41/08
摘要： 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：US11560683B2
公开(公告)日：2023-01-24
申请号：US15771665
申请日：2016-10-31
摘要： The present invention relates in some embodiments to a bottom supported drilling unit having two drilling stations for independently drilling (or otherwise working on) two wells simultaneously from a cantilever.
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9.发明授权公开(公告)号：US10450802B2
公开(公告)日：2019-10-22
申请号：US16267522
申请日：2019-02-05
申请人： MAERSK DRILLING A/S
发明人： Michael Kannegaard
IPC分类号： E04B1/34 , E21B15/00 , E21B17/02 , E21B7/128 , E02B17/00 , E21B11/02 , E21B15/02 , E21B29/12 , E02B17/02 , E21B29/00 , E21B7/124
摘要： 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 center 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 center 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：US10570672B2
公开(公告)日：2020-02-25
申请号：US16414852
申请日：2019-05-17
申请人： Maersk Drilling A/S
发明人： Michael Kannegaard , Allan McColl , Jesper Holck
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.
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