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    CENTRALISING DEVICE AND METHOD THEREFOR
    5.
    发明授权
    CENTRALISING DEVICE AND METHOD THEREFOR 有权

    公开(公告)号：EP2999845B1

    公开(公告)日：2018-07-25

    申请号：EP14801156.2

    申请日：2014-05-20

    申请人： Matrix Composites and Engineering Limited

    发明人： RIORDAN, Paul

    IPC分类号： E21B19/24 ,  E21B17/10

    CPC分类号： E21B19/24

    摘要： The present disclosure provides a centralizing device and a method for using the centralizing device to immovably centralize a conductor casing within an aperture of a supporting framework. The centralizing device has one or more body portions, each having an inner surface and an outer surface, wherein the inner surface(s) are arranged for abutting the conductor casing and the outer surface(s) are arranged for abutting the framework. The body portion(s) are located within the aperture between the conductor casing and the framework for limiting movement of the conductor casing relative to the framework. Each body portion includes a first member providing the outer surface and a second member providing the inner surface. The first member and second member are movable relative to each other, to thereby permit adjusting the position of the inner surface relative to the position of the outer surface, so as to centralize the conductor casing within the aperture.

    EXPANDADLE BULLNOSE ASSEMBLY FOR USE WITH A WELLBORE DEFLECTOR
    7.
    发明公开
    EXPANDADLE BULLNOSE ASSEMBLY FOR USE WITH A WELLBORE DEFLECTOR 审中-公开
    用于井眼偏转器的EXPANDADLE牛头组件

    公开(公告)号：EP3272991A1

    公开(公告)日：2018-01-24

    申请号：EP17184797.3

    申请日：2013-07-25

    申请人： Halliburton Energy Services Inc.

    发明人： STOKES, Matthew Bradley ,  LAJESIC, Borisa

    IPC分类号： E21B7/06 ,  E21B15/04 ,  E21B19/24

    CPC分类号： E21B41/0035 ,  E21B7/061 ,  E21B17/006 ,  E21B19/24 ,  E21B23/002

    摘要： Disclosed are embodiments of expandable bullnose assemblies for use in a well system. One well system includes: a deflector arranged within a main bore of a wellbore and defining a first channel that exhibits a predetermined diameter and communicates with a lower portion of the main bore, and a second channel that communicates with a lateral bore; a bullnose assembly including a body and a bullnose tip arranged at a distal end of the body, the bullnose tip being actuatable between a default configuration, where the bullnose tip exhibits a first diameter, and an actuated configuration, where the bullnose tip exhibits a second diameter different than the first diameter; a collet body forming at least part of the bullnose tip and defining a plurality of axially extending fingers; a radial protrusion defined on an inner surface of the collet body and extending radially inward from each axially extending finger; and a piston movably arranged within a piston chamber defined within the collet body and having a wedge member defined on an outer surface thereof, the piston being actuatable such that the wedge member engages the radial protrusion and forces the plurality of axially extending fingers radially outward, wherein, when the plurality of axially extending fingers is forced radially outward, the diameter of the bullnose tip exceeds the predetermined diameter, wherein the deflector is configured to direct the bullnose assembly into one of the lateral bore and the lower portion of the main bore based on a diameter of the bullnose tip as compared to the predetermined diameter.

    摘要翻译： 公开了用于井系统的可膨胀外圆角组件的实施例。 一个井系统包括：偏转器，其布置在井眼的主孔内并限定呈现预定直径并与主孔的下部连通的第一通道以及与侧向孔连通的第二通道; 包括主体和布置在主体的远端处的外圆角尖端的外圆角组件，所述外圆角尖端可在外圆角尖端呈现第一直径的默认构型和外圆角尖端展现第二外径的致动构型之间致动 直径不同于第一直径; 形成至少一部分外圆角尖端并限定多个轴向延伸的指状物的夹头体; 限定在所述夹头主体的内表面上并且从每个轴向延伸指状物径向向内延伸的径向突起; 所述活塞可移动地布置在限定在所述夹头主体内的活塞腔室内并且具有限定在其外表面上的楔形构件，所述活塞可致动使得所述楔形构件接合所述径向突起并迫使所述多个轴向延伸指状物径向向外， 其中，当所述多个轴向延伸指状物被迫径向向外时，所述外圆角尖端的直径超过所述预定直径，其中所述偏转器构造成将所述外圆角组件引导到所述主孔的所述侧向孔和所述下部中的一个中 与预定直径相比，在外圆角尖端的直径上。

    METHOD FOR USING RETAINER, AND RETAINER
    10.
    发明公开
    METHOD FOR USING RETAINER, AND RETAINER 有权
    VERFAHREN ZUR VERWENDUNG EINES HALTERS UND哈特

    公开(公告)号：EP2396497A4

    公开(公告)日：2017-05-24

    申请号：EP10740972

    申请日：2010-02-11

    申请人： SANDVIK MINING & CONSTRUCTION OY

    发明人： PIIPPONEN JUHA ,  KERÄNEN SAMI

    IPC分类号： E21B19/24 ,  E21B19/16

    CPC分类号： E21B19/24 ,  E21B19/163

    摘要： The invention relates to a method for using a retainer, and to a retainer. The retainer(14) comprises a first clamping arm (18a) and a second clamping arm (18b) provided with clamping jaws (21a, 21b) for clamping a drill rod (9), a rock bolt or the like. The clamping arms are turned in relation to their pivot points (19a, 19b) by an actuator (20), whereby the clamping jaws move either towards or away from each other. On the portion between the pivot points of the clamping arms there are shape members that interconnect the movements of the clamping arms to make them interdependent and thus synchronize the movements of the clamping arms in both directions of movement of the clamping arms.

    摘要翻译： 本发明涉及使用保持器的方法和保持器。 保持器14包括第一夹紧臂18a和第二夹紧臂18b，第二夹紧臂18b设置有用于夹紧钻杆9，岩栓等的夹爪21a，21b。 通过致动器（20）使夹臂相对于它们的枢轴点（19a，19b）转动，由此夹爪相互移向或移离。 在夹紧臂的枢轴点之间的部分上有形状构件，它们使夹紧臂的运动相互连接，使它们相互依赖并因此使夹紧臂在夹紧臂的两个运动方向上的运动同步。