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15 条记录 (耗时 0.009 秒)

    PIPE-GRIPPING STRUCTURE HAVING LOAD RING
    1.
    发明授权
    PIPE-GRIPPING STRUCTURE HAVING LOAD RING 有权
    与去年环状管CROSS设计

    公开(公告)号：EP1470353B1

    公开(公告)日：2007-08-22

    申请号：EP03701999.9

    申请日：2003-01-03

    申请人： Varco I/P, Inc.

    发明人： MASON, David ,  DE PONT, Albert, P., J., M. ,  VAN RIJZINGEN, Hans ,  KRIJNEN, Anton ,  DE LAAT, Cornelis, W., J.

    IPC分类号： E21B19/10

    CPC分类号： E21B19/10 ,  Y10S294/902

    摘要： A rotary slip for supporting a drill string having a plurality of slip segments connected to define an opening for insertion of the drill string (14), wherein each slip segment (32, 34, 36) comprises a head region (24), a toe region (26), and an inner radial surface (50) axially extending between the head and toe regions, and wherein the inner radial surface of each slip comprises a circumferential groove (70). A plurality of axially aligned drill string gripping inserts (60) are attached to each slip segment between the head region and the circumferential groove, wherein each insert comprises a gripping surface for contacting the drill string. A load ring (90) is disposed within the circumferential groove of each slip element, the load ring comprising at least one securing element (96) which is engaged by one of the plurality of axially aligned inserts.

    PIPE RUNNING TOOL HAVING INTERNAL GRIPPER
    4.
    发明公开
    PIPE RUNNING TOOL HAVING INTERNAL GRIPPER 有权
    心抓斗管道安装工具

    公开(公告)号：EP1896687A1

    公开(公告)日：2008-03-12

    申请号：EP06773003.6

    申请日：2006-06-13

    申请人： Varco I/P, Inc.

    发明人： JUHASZ, Daniel ,  BOYADJIEFF, George ,  VAN RIJZINGEN, Hans ,  KAMPHORST, Herman, M. ,  BOTTGER, Hans, Joachim, Dietrich ,  VAN WECHEM, Gustaaf, Louis ,  MASON, David ,  KRIJNEN, Anton

    IPC分类号： E21B19/18

    CPC分类号： E21B19/07 ,  E21B31/20

    摘要： A system for coupling a pipe segment to a pipe string is provided that includes a top drive assembly having an output shaft; and a pipe running tool coupled to the top drive assembly and rotatable by the output shaft of the top drive assembly. The pipe running tool includes an internal gripper for insertion within an internal diameter of the pipe segment and a tapered slip cone section, which slidably receives corresponding tapered surfaces of a plurality of slips, such that a vertical force on the slips causes the slips to move radially outwardly into gripping engagement with the internal diameter of the pipe segment, and wherein the vertical force applied to the slips is sufficient to allow the gripping engagement of the slips with the internal diameter of the pipe segment to transmit a torque from the top drive output shaft to the pipe segment.

    PIPE-GRIPPING STRUCTURE HAVING LOAD RING
    6.
    发明公开
    PIPE-GRIPPING STRUCTURE HAVING LOAD RING 有权
    与去年环状管CROSS设计

    公开(公告)号：EP1470353A2

    公开(公告)日：2004-10-27

    申请号：EP03701999.9

    申请日：2003-01-03

    申请人： Varco I/P, Inc.

    发明人： MASON, David ,  DE PONT, Albert, P., J., M. ,  VAN RIJZINGEN, Hans ,  KRIJNEN, Anton ,  DE LAAT, Cornelis, W., J.

    IPC分类号： F16L1/00

    CPC分类号： E21B19/10 ,  Y10S294/902

    摘要： A rotary slip for supporting a drill string having a plurality of slip segments connected to define an opening for insertion of the drill string (14), wherein each slip segment (32, 34, 36) comprises a head region (24), a toe region (26), and an inner radial surface (50) axially extending between the head and toe regions, and wherein the inner radial surface of each slip comprises a circumferential groove (70). A plurality of axially aligned drill string gripping inserts (60) are attached to each slip segment between the head region and the circumferential groove, wherein each insert comprises a gripping surface for contacting the drill string. A load ring (90) is disposed within the circumferential groove of each slip element, the load ring comprising at least one securing element (96) which is engaged by one of the plurality of axially aligned inserts.

    OFFSET ELEVATOR FOR A PIPE RUNNING TOOL AND A METHOD OF USING A PIPE RUNNING TOOL
    7.
    发明公开
    OFFSET ELEVATOR FOR A PIPE RUNNING TOOL AND A METHOD OF USING A PIPE RUNNING TOOL 审中-公开
    VERSATZHUBWERK管道安装工具，并使用管道安装工具的方法，

    公开(公告)号：EP1466067A2

    公开(公告)日：2004-10-13

    申请号：EP02786570.8

    申请日：2002-10-28

    申请人： Varco I/P, Inc.

    发明人： JUHASZ, Daniel ,  BOYADJIEFF, George ,  EIDEM, Brian, L. ,  VAN RIJZINGEN, Hans

    IPC分类号： E21B1/00

    CPC分类号： E21B19/07 ,  E21B19/00 ,  E21B19/02 ,  E21B19/086 ,  E21B19/10 ,  E21B19/14 ,  E21B19/16 ,  E21B19/165

    摘要： A pipe running tool (10) for use in an oil drilling system and the like comprises a lower drive shaft (14) adapted to engage a drive shaft (28) of a top drive assembly (24) for rotation therewith. The pipe running tool (10) further includes a lower pipe engagement assembly (16) which is driven to rotate by the lower drive shaft (14), and is designed to releasably engage a pipe segment (11) in such a manner to substantially prevent relative rotation between the two. Thus, when the lower pipe engagement assembly (16) is actuated to securely hold a pipe segment (11), the top drive assembly (24) may be actuated to rotate the top drive output shaft (28), which causes the lower drive shaft (14) and lower pipe engagement assembly (16) to rotate, which in turn rotates the pipe segment (11). The pipe running tool (10) having a greater slip back offset such that drill pipe and drill pipe tool joints (11) may be passed through the central passageway (76) of the tool (10) without interfering with the front of the slip.