公开(公告)号：US10907316B2

公开(公告)日：2021-02-02

申请号：US15771684

申请日：2016-10-31

申请人： Maersk Drilling A/S ,  TOTAL E&P DANMARK A/S

发明人： Michael Kannegaard ,  John Anthony Gill ,  Jeanne Mia Lønstrup ,  Meinte Van Der Brug

IPC分类号： E21B15/00 ,  E21B41/00 ,  E21B17/00 ,  E02B17/00 ,  E21B15/02 ,  E02B17/02

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.

公开(公告)号：US20180320331A1

公开(公告)日：2018-11-08

申请号：US15771665

申请日：2016-10-31

申请人： Maersk Drilling A/S

发明人： Michael Kannegaard ,  John Anthony Gill ,  Jeanne Mia Lønstrup

IPC分类号： E02B17/02 ,  E21B15/00 ,  E21B15/02 ,  E21B19/00

CPC分类号： E02B17/021 ,  E02B2017/006 ,  E21B15/003 ,  E21B15/02 ,  E21B19/002

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.

公开(公告)号：US11560683B2

公开(公告)日：2023-01-24

申请号：US15771665

申请日：2016-10-31

申请人： Maersk Drilling A/S ,  TOTAL E&P DANMARK A/S

发明人： Michael Kannegaard ,  John Anthony Gill ,  Jeanne Mia Lønstrup

IPC分类号： E02B17/02 ,  E21B15/02 ,  E21B15/00 ,  E21B19/00 ,  E02B17/00

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.

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.

发明人： Michael Kannegaard ,  John Anthony Gill ,  Jeanne Mia Lønstrup ,  Meinte Van Der Brug

IPC分类号： E02B17/00 ,  E21B15/00 ,  E21B41/00

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.