Logging method and apparatus using a sonde equipped with measuring pads
    1.
    发明授权
    Logging method and apparatus using a sonde equipped with measuring pads 失效
    使用配有测量垫的探头的测井方法和仪器

    公开(公告)号:US4614250A

    公开(公告)日:1986-09-30

    申请号:US415856

    申请日:1982-09-08

    CPC classification number: E21B47/026 E21B17/1021 G01V11/005 Y10S367/911

    Abstract: Dip measurements and investigation of geological formations traversed by a deviated borehole is carried out by means of an apparatus comprising a measuring sonde and a cartridge connected to a cable. The sonde carries four measuring pads regularly distributed by means of articulated arms which keep the pads parallel to the axis of the sonde. The opposite arms are forced to stay symmetrical in relation to the sonde.The sonde is connected to the cartridge so that its axis can depart angularly from the axis of the cartridge, enabling the latter to rest on the borehole wall. The pads have a length smaller than twice the transverse dimension D of the sonde.

    Abstract translation: 由偏心钻孔穿过的地质构造的浸渍测量和调查通过包括测量探头和连接到电缆的盒的装置进行。 探头携带四个测量垫,通过铰接臂规则分布,使垫保持平行于探头的轴线。 相对的手臂相对于探头被迫保持对称。 探头连接到墨盒,使得其轴线可以与墨盒的轴线成角度地离开,使得其能够停留在钻孔壁上。 垫的长度小于探头的横向尺寸D的两倍。

    Logging method and apparatus using a sonde equipped with measuring pads
    2.
    发明授权
    Logging method and apparatus using a sonde equipped with measuring pads 失效
    使用配有测量垫的探头的测井方法和仪器

    公开(公告)号:US5022484A

    公开(公告)日:1991-06-11

    申请号:US864629

    申请日:1986-05-16

    CPC classification number: E21B47/026 E21B17/1021 G01V11/005 Y10S367/911

    Abstract: Method and apparatus for applying the measuring pads of a logging sonde against the walls of a borehole. Dip measurements and geological investigation of earth formations traversed by a deviated borehole require that the measuring pads be pressed against the borehole walls by means of articulated arms which maintain the pads symmetrical and parallel with respect to the sonde. In the preferred embodiment, two independent resilient forces are applied to the pads. The first resilient force is substantially constant at all extensions of the arms in the borehole, while the second resilient force is adjustable to suit local parameters. The second resilient force is preferably adjustable from surface instrumentation while the sonde is making measurements in the borehole. The first resilient force is provided by independent leaf springs acting on each of the pads, while the second resilient force is preferably provided by a coil spring acting on each of the pairs of opposing arms. A flexible joint may be used between the cartridge and sonde sections of the logging tool to reduce the total weight bearing down upon the pads.

    Abstract translation: 由偏心钻孔穿过的地质构造的浸渍测量和调查通过包括测量探头和连接到电缆的盒的装置进行。 探头携带四个测量垫,通过铰接臂规则分布,使垫保持平行于探头的轴线。 相对的手臂相对于探头被迫保持对称。 探头连接到墨盒,使得其轴线可以与墨盒的轴线成角度地离开,使得其能够停留在钻孔壁上。 垫的长度小于探头的横向尺寸D的两倍。

    Device for electrode-type electrical logging tools and tool
incorporating said device
    3.
    发明授权
    Device for electrode-type electrical logging tools and tool incorporating said device 失效
    用于电极式测井工具的装置和结合所述装置的工具

    公开(公告)号:US4286217A

    公开(公告)日:1981-08-25

    申请号:US008302

    申请日:1979-02-01

    CPC classification number: G01V3/20 E21B47/011

    Abstract: A logging tool in accordance with the invention comprises a unitized electrode assembly adapted to be removably mounted on a central mandrel. The unitized electrode assembly comprises a metallic tube that is encased within an electrically-insulating sheath. An insulating sleeve surrounding the sheath carries various electrodes that are separated from each other by insulating spacers.

    Abstract translation: 根据本发明的测井工具包括适于可拆卸地安装在中心心轴上的组合电极组件。 单元化电极组件包括被包在电绝缘护套内的金属管。 围绕护套的绝缘套管承载通过绝缘垫片彼此分离的各种电极。

    Measuring pad arrangement for a logging sonde
    4.
    发明授权
    Measuring pad arrangement for a logging sonde 失效
    测井仪的测量垫布置

    公开(公告)号:US4862090A

    公开(公告)日:1989-08-29

    申请号:US164253

    申请日:1988-03-04

    CPC classification number: E21B47/026 E21B17/1021 G01V11/005 G01V3/20

    Abstract: In order to increase the angular field of observation of a logging sonde usable, in particular for dip metering, the sonde is equipped with measuring pads each comprising two independent flaps. The flaps of the same pad are hinged to a central element which is held permanently parallel to the axis of the sonde body, and they are applied against the wall of a borehole by blade springs. Each of the flaps carries an array of electrodes. The flaps of each of the measuring pads are circumferentially offset relative to each other so that the angular field of observation is increased without increasing the diameter of the sonde, once the pads have been retracted.

    Anchoring apparatus for tools used in determining the stuck point of a
conduit in a borehole
    5.
    发明授权
    Anchoring apparatus for tools used in determining the stuck point of a conduit in a borehole 失效
    用于确定钻孔中管道粘滞点的工具的锚定装置

    公开(公告)号:US4184546A

    公开(公告)日:1980-01-22

    申请号:US894885

    申请日:1978-04-10

    CPC classification number: E21B47/09 E21B23/01 E21B23/04

    Abstract: In the representative embodiment of the new and improved apparatus disclosed herein, a so-called "stuck-point indicator" or "freepoint-indicator" tool includes a deformation-responsive sensor tandemly supported between upper and lower selectively-operated tool anchors of a unique arrangement which, in the preferred embodiment of the tool, are cooperatively arranged to be sequentially engaged with longitudinally-spaced wall portions of a string of well pipe believed to be stuck in a well bore. In the disclosed embodiment of the tool, each tool anchor respectively includes a set of pivoted anchor members and actuating links adapted to swing the anchor members outwardly into anchoring engagement with the pipe wall for securing the tool against longitudinal movement in the pipe string. To further secure or stabilize the tool against wobbling or angular movement in the pipe string, the pivoted actuating links are cooperatively arranged to become wedged against the opposed side walls of elongated grooves on the tool body as the anchor members engage the pipe wall.

    Abstract translation: 在本文所公开的新的和改进的装置的代表性实施例中,所谓的“卡住点指示器”或“自由点指示器”工具包括一个变形响应传感器,它们串联地支撑在上下选择性操作的工具锚之间, 在工具的优选实施例中,这些布置被配合地布置成与被认为卡在井眼中的一排井管的纵向隔开的壁部分顺序地接合。 在所公开的工具的实施例中,每个工具锚固件分别包括一组枢转的锚固构件和致动链节,其适于将锚固构件向外摆动,以与管壁锚固接合,以固定工具以防止管柱中的纵向运动。 为了进一步固定或稳定工具防止管柱中的摆动或角运动,枢转的致动连杆协同地布置成当锚固构件接合管壁时楔入到工具主体上的细长槽的相对侧壁上。

    Anchoring apparatus for tools used in determining the stuck point of a
conduit in a borehole
    6.
    发明授权
    Anchoring apparatus for tools used in determining the stuck point of a conduit in a borehole 失效
    用于确定钻孔中管道粘滞点的工具的锚定装置

    公开(公告)号:US4125013A

    公开(公告)日:1978-11-14

    申请号:US834193

    申请日:1977-09-19

    CPC classification number: E21B47/09 E21B23/01 E21B23/04

    Abstract: In the representative embodiment of the new and improved apparatus disclosed herein, a so-called "stuck-point indicator" or "freepoint-indicator" tool includes a deformation-responsive sensor tandemly supported between upper and lower selectively-operated tool anchors of a unique arrangement which, in the preferred embodiment of the tool, are cooperatively arranged to be sequentially engaged with longitudinally-spaced wall portions of a string of well pipe believed to be stuck in a well bore. In the disclosed embodiment of the tool, each tool anchor respectively includes a set of pivoted anchor members and actuating links adapted to swing the anchor members outwardly into anchoring engagement with the pipe wall for securing the tool against longitudinal movement in the pipe string. To further secure or stabilize the tool against wobbling or angular movement in the pipe string, the pivoted actuating links are cooperatively arranged to become wedged against the opposed side walls of elongated grooves on the tool body as the anchor members engage the pipe wall.

    Abstract translation: 在本文所公开的新的和改进的装置的代表性实施例中,所谓的“卡住点指示器”或“自由点指示器”工具包括一个变形响应传感器,它们串联地支撑在上下选择性操作的工具锚之间, 在工具的优选实施例中,这些布置被配合地布置成与被认为卡在井眼中的一排井管的纵向隔开的壁部分顺序地接合。 在所公开的工具的实施例中,每个工具锚固件分别包括一组枢转的锚固构件和致动链节,其适于将锚固构件向外摆动,以与管壁锚固接合,以固定工具以防止管柱中的纵向运动。 为了进一步固定或稳定工具防止管柱中的摆动或角运动,枢转的致动连杆协同地布置成当锚固构件接合管壁时楔入到工具主体上的细长槽的相对侧壁上。

Patent Agency Ranking