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    Internal riser rotating control head
    24.
    发明专利
    Internal riser rotating control head 未知

    公开(公告)号：GB2394738A

    公开(公告)日：2004-05-05

    申请号：GB0324939

    申请日：2003-10-24

    Applicant: WEATHERFORD LAMB

    Inventor： BOURGOYNE DARRYL A ,  HANNEGAN DON M ,  BAILEY THOMAS F ,  CHAMBERS JAMES W ,  WILSON TIMOTHY L

    IPC: E21B21/00 ,  E21B21/08 ,  E21B33/08 ,  E21B7/12

    Abstract: A system for forming a subsea borehole is provided, whereby the borehole is formed by utilising a rotatable pipe P, and a fluid. The system comprises a subsea housing 14 that is positioned above the borehole. A bearing assembly 28 is mounted with the housing, the bearing assembly featuring an inner 36 and outer 38 member, with the inner member rotatable relative to the outer member, and with a passage within it allowing the rotatable pipe to extend through the bearing assembly. A seal is also provided to seal the bearing with the rotatable pipe. Finally, a holding member 24 is employed to locate the entire bearing assembly within the subsea housing. Numerous other embodiments are disclosed, some utilising a feature whereby the fluid pressure in the system can be increased to control borehole pressure.

    25.
    发明专利
    未知

    公开(公告)号：NO20121156A

    公开(公告)日：2004-04-29

    申请号：NO20121156

    申请日：2012-10-11

    Applicant: WEATHERFORD LAMB

    Inventor： BAILEY THOMAS FLOYD ,  WILSON TIMOTHY L ,  HANNEGAN DON M ,  BOURGOYNE DARRYL A ,  CHAMBERS JAMES W

    IPC: E21B33/08 ,  E21B21/00 ,  E21B21/08

    CPC classification number: E21B23/006 ,  E21B21/001 ,  E21B21/08 ,  E21B33/085 ,  E21B2021/006

    Abstract: A holding member provides for releasably positioning a rotating control head assembly in a subsea housing. The holding member engages an internal formation in the subsea housing to resist movement of the rotating control head assembly relative to the subsea housing. The rotating control head assembly is sealed with the subsea housing when the holding member engages the internal formation. An extendible portion of the holding member assembly extrudes an elastomer between an upper portion and a lower portion of the internal housing to seal the rotating control head assembly with the subsea housing. Pressure relief mechanisms release excess pressure in the subsea housing and a pressure compensation mechanism pressurize bearings in the bearing assembly at a predetermined pressure.

    26.
    发明专利
    未知

    公开(公告)号：NO20034795A

    公开(公告)日：2004-04-29

    申请号：NO20034795

    申请日：2003-10-27

    Applicant: WEATHERFORD LAMB

    Inventor： BAILEY THOMAS FLOYD ,  WILSON TIMOTHY L ,  HANNEGAN DON M ,  BOURGOYNE DARRYL A ,  CHAMBERS JAMES W

    IPC: E21B21/00 ,  E21B21/08 ,  E21B33/08 ,  E21B33/038 ,  E21B7/12

    CPC classification number: E21B23/006 ,  E21B21/001 ,  E21B21/08 ,  E21B33/085 ,  E21B2021/006

    Abstract: A holding member provides for releasably positioning a rotating control head assembly in a subsea housing. The holding member engages an internal formation in the subsea housing to resist movement of the rotating control head assembly relative to the subsea housing. The rotating control head assembly is sealed with the subsea housing when the holding member engages the internal formation. An extendible portion of the holding member assembly extrudes an elastomer between an upper portion and a lower portion of the internal housing to seal the rotating control head assembly with the subsea housing. Pressure relief mechanisms release excess pressure in the subsea housing and a pressure compensation mechanism pressurize bearings in the bearing assembly at a predetermined pressure.

    27.
    发明专利
    未知

    公开(公告)号：NO20034795D0

    公开(公告)日：2003-10-27

    申请号：NO20034795

    申请日：2003-10-27

    Applicant: WEATHERFORD LAMB

    Inventor： BAILEY THOMAS FLOYD ,  CHAMBERS JAMES W ,  WILSON TIMOTHY L ,  BOURGOYNE DARRYL A ,  HANNEGAN DON M

    IPC: E21B21/00 ,  E21B21/08 ,  E21B33/08 ,  E21B

    Abstract: A holding member provides for releasably positioning a rotating control head assembly in a subsea housing. The holding member engages an internal formation in the subsea housing to resist movement of the rotating control head assembly relative to the subsea housing. The rotating control head assembly is sealed with the subsea housing when the holding member engages the internal formation. An extendible portion of the holding member assembly extrudes an elastomer between an upper portion and a lower portion of the internal housing to seal the rotating control head assembly with the subsea housing. Pressure relief mechanisms release excess pressure in the subsea housing and a pressure compensation mechanism pressurize bearings in the bearing assembly at a predetermined pressure.

    Multi-cycle circulating tool
    28.
    发明专利
    Multi-cycle circulating tool 未知

    公开(公告)号：AU2013290166A1

    公开(公告)日：2015-01-29

    申请号：AU2013290166

    申请日：2013-07-10

    Applicant: WEATHERFORD LAMB

    Inventor： WILSON TIMOTHY L

    IPC: E21B21/10 ,  E21B34/14

    Abstract: A method and apparatus for circulating fluid in a wellbore includes a bottom sub 130 having a bottom sub port and a mandrel 35, wherein the mandrel 35 substantially forms an inner bore of the circulating tool and includes a mandrel port. The circulating tool may also include an activation piston 46 that is movable in a first direction and a port piston 64 movable in a second direction when the activation piston 46 moves in the first direction. The circulating tool may further include an inner sleeve 90 coupled to the port piston 64 and movable with the port piston, the inner sleeve 90 having an inner sleeve port in selective communication with the mandrel port. When the inner sleeve port is in communication with the mandrel port at least partially, circulating fluid is allowed to flow through the bottom sub port to the wellbore.

    Internal riser rotating control head
    30.
    发明专利
    Internal riser rotating control head 未知

    公开(公告)号：AU2003257520A1

    公开(公告)日：2004-05-13

    申请号：AU2003257520

    申请日：2003-10-22

    Applicant: WEATHERFORD LAMB

    Inventor： HANNEGAN DON M ,  BOURGOYNE DARRYL A ,  WILSON TIMOTHY L ,  CHAMBERS JAMES W ,  BAILEY THOMAS F

    IPC: E21B21/00 ,  E21B21/08 ,  E21B33/08 ,  E21B33/038 ,  E21B33/064

    Abstract: A holding member provides for releasably positioning a rotating control head assembly in a subsea housing. The holding member engages an internal formation in the subsea housing to resist movement of the rotating control head assembly relative to the subsea housing. The rotating control head assembly is sealed with the subsea housing when the holding member engages the internal formation. An extendible portion of the holding member assembly extrudes an elastomer between an upper portion and a lower portion of the internal housing to seal the rotating control head assembly with the subsea housing. Pressure relief mechanisms release excess pressure in the subsea housing and a pressure compensation mechanism pressurize bearings in the bearing assembly at a predetermined pressure.

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