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12 条记录 (耗时 0.02 秒)

    MORPHIBLE BIT
    2.
    发明授权
    MORPHIBLE BIT 有权
    可变形MEISSEL

    公开(公告)号：EP2137372B1

    公开(公告)日：2011-08-24

    申请号：EP08842873.5

    申请日：2008-09-29

    申请人： Services Pétroliers Schlumberger ,  Schlumberger Holdings Limited ,  Schlumberger Technology B.V. ,  PRAD Research And Development Limited

    发明人： CHEN, Kuo-chiang ,  DOWNTON, Geoff

    IPC分类号： E21B10/32

    CPC分类号： E21B10/633 ,  E21B7/064

    摘要： According to the invention, a bottom hole assembly (100) for drilling a cavity is disclosed. The bottom hole assembly may include a chassis configured to rotate. The chassis may include a primary fluid conduit (110), a secondary fluid circuit (120), a pressure transfer device (115), a plurality of pistons (130), a plurality of valves (125), and a plurality of cutters (135). The primary fluid conduit may be accept a first fluid flow. The secondary fluid circuit may have a second fluid flow. The pressure transfer device may be configured to transfer pressure between the flows. The pistons may be operably coupled with the secondary fluid circuit, and each piston may be configured to move based at least in part on a pressure of the secondary fluid circuit at that piston, with the valves possibly configured to control a pressure of the secondary fluid circuit at each piston. Each cutter may be coupled with one of the pistons.

    TOOL FACE SENSOR METHOD
    5.
    发明授权
    TOOL FACE SENSOR METHOD 有权
    SENSOR方法工具表面

    公开(公告)号：EP2183465B1

    公开(公告)日：2011-08-31

    申请号：EP08828441.9

    申请日：2008-07-21

    申请人： Schlumberger Technology B.V. ,  PRAD Research And Development Limited ,  Services Pétroliers Schlumberger ,  Schlumberger Holdings Limited

    发明人： DOWNTON, Geoff ,  HORNBLOWER, Peter ,  BAYLISS, Martin ,  RICHARDS, Edward

    IPC分类号： E21B47/024

    CPC分类号： E21B47/024 ,  E21B7/067

    摘要： Exhaust pressure from at least one actuator (34,36) which can tilt joint (6) of a bottom hole assembly (4) can be utilized to determine the direction (26) tiltable joint (6) is pointing (e.g., orientation, angular displacement, and/or inclination and azimuth). In one embodiment, a known exhaust pressure can be correlated to a known orientation and/or angular displacement, and the measured exhaust pressure can be compared to the known exhaust pressure to determine the orientation and/or angular displacement. In another embodiment, the flow rate of fluid exhausted from an actuator (34,36) can be derived from the exhaust pressure. The exhaust flow rate can then be used to calculate the state of actuation, which can allow determination of the angular displacement of the tiltable joint (6). Orientation and/or angular displacement with respect to the bottom hole assembly (4) can be resolved into an inclination and azimuth with respect to a formation (14).

    TOOL FACE SENSOR METHOD
    7.
    发明公开
    TOOL FACE SENSOR METHOD 有权
    SENSOR方法工具表面

    公开(公告)号：EP2183465A2

    公开(公告)日：2010-05-12

    申请号：EP08828441.9

    申请日：2008-07-21

    申请人： Schlumberger Technology B.V. ,  PRAD Research And Development Limited ,  Services Pétroliers Schlumberger ,  Schlumberger Holdings Limited

    发明人： DOWNTON, Geoff ,  HORNBLOWER, Peter ,  BAYLISS, Martin ,  RICHARDS, Edward

    IPC分类号： E21B47/024

    CPC分类号： E21B47/024 ,  E21B7/067

    摘要： Exhaust pressure from at least one actuator (34,36) which can tilt joint (6) of a bottom hole assembly (4) can be utilized to determine the direction (26) tiltable joint (6) is pointing (e.g., orientation, angular displacement, and/or inclination and azimuth). In one embodiment, a known exhaust pressure can be correlated to a known orientation and/or angular displacement, and the measured exhaust pressure can be compared to the known exhaust pressure to determine the orientation and/or angular displacement. In another embodiment, the flow rate of fluid exhausted from an actuator (34,36) can be derived from the exhaust pressure. The exhaust flow rate can then be used to calculate the state of actuation, which can allow determination of the angular displacement of the tiltable joint (6). Orientation and/or angular displacement with respect to the bottom hole assembly (4) can be resolved into an inclination and azimuth with respect to a formation (14).

    MORPHIBLE BIT
    8.
    发明公开
    MORPHIBLE BIT 有权
    可变形MEISSEL

    公开(公告)号：EP2137372A2

    公开(公告)日：2009-12-30

    申请号：EP08842873.5

    申请日：2008-09-29

    申请人： Services Pétroliers Schlumberger ,  Schlumberger Holdings Limited ,  Schlumberger Technology B.V. ,  PRAD Research And Development Limited

    发明人： CHEN, Kuo-chiang ,  DOWNTON, Geoff

    IPC分类号： E21B10/32

    CPC分类号： E21B10/633 ,  E21B7/064

    摘要： According to the invention, a bottom hole assembly (100) for drilling a cavity is disclosed. The bottom hole assembly may include a chassis configured to rotate. The chassis may include a primary fluid conduit (110), a secondary fluid circuit (120), a pressure transfer device (115), a plurality of pistons (130), a plurality of valves (125), and a plurality of cutters (135). The primary fluid conduit may be accept a first fluid flow. The secondary fluid circuit may have a second fluid flow. The pressure transfer device may be configured to transfer pressure between the flows. The pistons may be operably coupled with the secondary fluid circuit, and each piston may be configured to move based at least in part on a pressure of the secondary fluid circuit at that piston, with the valves possibly configured to control a pressure of the secondary fluid circuit at each piston. Each cutter may be coupled with one of the pistons.