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公开(公告)号：WO2019100116A1
公开(公告)日：2019-05-31
申请号：PCT/AU2018/051254
申请日：2018-11-23
Applicant: GRAY, Ian
Inventor： GRAY, Ian
IPC: E21B7/06
CPC classification number: E21B7/067
Abstract: A steering collar for deflecting a drill string in a borehole to cause the borehole to be drilled in a different direction. The steering collar surrounds a hollow drive shaft which is driven by the drill string. During normal drilling operations, the steering collar does not rotate with the drive shaft. The steering collar has three sets of pistons operated by the pressure of the drilling fluid, one set of which is pressure relieved. Drill fluid that is pumped down the drill string flows into the hollow drive shaft and through ports to activate the pistons which thereby force corresponding pads outwardly into contact with the sidewall of the borehole. Since the one set of pistons is pressure relieved, it does not force its pad against the borehole sidewall with as much pressure as the other two sets of pistons force their pads against the sidewall of the borehole. Accordingly, the steering collar is deflected laterally in the borehole so that the drill bit is also steered laterally to cause drilling in a different direction. In order to reorient the steering collar in the borehole, the steering collar can be locked to the drive shaft so that when the drill string is rotated, the steering collar is also rotated so that it is moved to a new angular position in the borehole.
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公开(公告)号：WO2019009911A1
公开(公告)日：2019-01-10
申请号：PCT/US2017/040981
申请日：2017-07-06
Applicant: HALLIBURTON ENERGY SERVICES, INC.
Inventor： ODEGBAMI, Olumide O.
Abstract: Control valves can allow a well operator to steer a drill string. An exemplary control valve can include a valve body with an axial bore and a radial orifice in fluid communication with the axial bore, wherein flow passing through the axial bore passes through the radial orifice and into a piston flow channel to be in fluid communication with a piston bore to exert pressure against a piston movable within the piston bore, the piston being coupled a steering pad for applying force against the wellbore wall. A rotary valve element is disposed within the axial bore and including an actuation flow channel, wherein the rotary valve element is rotatable with respect to the axial bore to change flow through the actuation channel and the radial orifice to modify fluid pressure within the piston flow channel that is exerted against the piston.
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公开(公告)号：WO2018067273A1
公开(公告)日：2018-04-12
申请号：PCT/US2017/050967
申请日：2017-09-11
Applicant: ISODRILL, LLC
Inventor： BARGACH, Saad , BONNER, Stephen, D. , NOLD III, Raymond, V. , MASSEY, James, P. , BRUNETTI, Jon, A.
CPC classification number: E21B7/067 , E21B44/00 , E21B47/024 , E21B47/18
Abstract: The rotary steerable drilling tool and system described herein combines both point- the-bit and push-the-bit techniques to actively change the direction of the borehole trajectory. In this system, the deflection of the drill bit is limited to a single degree of freedom relative to a coordinate system that is fixed to and rotates with the rotary steerable drilling tool, resulting in a simplified attachment of the bit assembly and bias unit mechanics. Further, steering of the well is accomplished by dynamically controlling the spatial phase and amplitude of the coherent symmetrical bidirectional reciprocating deflections of the drill bit relative to a fixed terrestrial datum as the tool is rotating, simultaneously pointing and pushing the bit. Alternatively, when not being used to change the direction of the borehole trajectory, the rotary steerable drilling tool apparatus can be used to mitigate or abate the stick-slip tendencies of the drill string by dithering the bit using spatially variable asynchronous symmetrical bidirectional reciprocating deflections of the drill bit at frequencies that are different from the rotational frequency of the bottom hole assembly. When neither steering nor stick-slip abatement is active, the bit can be mechanically locked into the neutral position.
Abstract translation: 本文描述的旋转式可转向钻井工具和系统结合点钻头技术和推钻头技术来主动改变井眼轨迹的方向。 在该系统中，钻头的偏转相对于与旋转式可转向钻井工具固定并随旋转式可转向钻井工具一起旋转的坐标系被限制为单一自由度，从而简化了钻头组件和偏置单元机构的附接。 此外，通过动态地控制钻头相对于固定地面基准的相干对称双向往复偏转的空间相位和幅度来实现井的转向，同时工具正在旋转，同时指向并推动钻头。 可选地，当不用于改变钻孔轨迹的方向时，旋转可控钻具设备可以用于通过使用空间可变的异步对称双向往复偏转来缓和或消除钻柱的粘滑倾向， 该钻头的频率不同于底部钻具组合的旋转频率。 当转向和粘滑减速都不起作用时，钻头可以机械锁定在中立位置。
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4.发明申请A METHOD AND APPLICATION FOR DIRECTIONAL DRILLING WITH AN ASYMMETRIC DEFLECTING BEND 审中-公开一种非对称弯曲定向钻孔方法及其应用
公开(公告)号：WO2017127671A1
公开(公告)日：2017-07-27
申请号：PCT/US2017/014321
申请日：2017-01-20
Applicant: BAKER HUGHES INCORPORATED
Inventor： LEHR, Joerg , SAUTHOFF, Bastian , DEITERS, Arne
Abstract: A method and related apparatus for forming a wellbore in a subterranean formation includes forming a drill string that has a drill bit at a distal end, a drilling motor configured to rotate the drill bit with a drive shaft; a joint coupled to the drive shaft; and an actuator assembly displacing the drive shaft between a first and a second deflection angle, the drive shaft being movable at each of the deflection angles until a predetermined weight is applied to the bit. The method also includes conveying the drill bit through the wellbore and fixing the drive shaft in at least one of the first and the second deflection angles by applying a predetermined weight on the bit.
Abstract translation: 一种用于在地下地层中形成井筒的方法和相关设备包括：形成钻柱，钻柱在远端处具有钻头;钻井马达，其被配置为使钻头与驱动轴一起旋转; 联接到驱动轴的接头; 以及致动器组件，其使驱动轴在第一偏转角和第二偏转角之间移位，驱动轴可在每个偏转角处移动，直到预定重量施加到钻头。 该方法还包括将钻头传送通过井眼并通过在钻头上施加预定的重量将驱动轴固定在第一和第二偏转角中的至少一个上。
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公开(公告)号：WO2017019073A1
公开(公告)日：2017-02-02
申请号：PCT/US2015/042741
申请日：2015-07-29
Applicant: HALLIBURTON ENERGY SERVICES, INC.
Inventor： WINSLOW, Daniel Martin
Abstract: Systems and methods of counteracting downhole reactive forces within a directional drilling tool are disclosed. The directional drilling tool includes a steering mechanism for selectively pivoting a bit shaft with respect to an elongate housing. A preloaded flexible member may be provided between an upper end of the bit shaft and an elongate housing to counteract reactive forces applied by a geological formation on a drill bit at a lower end of the bit shaft. Where sufficient reactive forces are transmitted through the bit shaft to overcome the preload, the flexible member will be induced to flex, permitting some movement of the upper end of the bit shaft. This movement limits the force that may be applied by the steering mechanism, which can extend the useful life of the directional drilling tool and may permit the power required to drive the drill bit to be maintained at a consistent value.
Abstract translation: 公开了在定向钻具内抵消井下反作用力的系统和方法。 定向钻具包括用于相对于细长壳体选择性地枢转钻头轴的转向机构。 可以在钻头轴的上端和细长壳体之间设置预加载的柔性构件，以抵抗由位钻头的下端处的钻头上的地质构造施加的反作用力。 如果足够的反作用力通过钻头轴传递以克服预载荷，则柔性构件将被引起弯曲，允许钻头轴的上端的一些运动。 该运动限制了可能由转向机构施加的力，这可以延长定向钻具的使用寿命，并且可以允许驱动钻头所需的功率维持在一致的值。
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Patent Agency Ranking
公开(公告)号：WO2017004533A1
公开(公告)日：2017-01-05
申请号：PCT/US2016/040721
申请日：2016-07-01
Applicant: BITSWAVE INC.
Inventor： MARSHALL, Ricki Don , DAVIS, Treston Greggory
Abstract: A steerable earth boring assembly which includes an annular collar and a drive shaft with a drill bit, where the shaft pivots with respect to the collar. An upstream portion of the shaft inserts into an orientation sleeve which resides in the collar. An axial bore is obliquely formed through the sleeve, and in which the upstream portion inserts. Rotating the sleeve causes precession of the upstream portion, thereby pivoting the drill bit obliquely to the collar. Selective rotation of the sleeve orients the drill bit into a designated orientation for forming a deviated wellbore. Included in the assembly is a flow tube with an end in sealing contact with the drive shaft.
Abstract translation: 一种可操纵的钻孔组件，其包括环形套环和具有钻头的驱动轴，其中所述轴相对于所述套环枢转。 轴的上游部分插入到位于套环中的定向套筒中。 轴向孔通过套筒倾斜地形成，其中上游部分插入。 旋转套筒会导致上游部分的进动，从而将钻头倾斜地枢转到套环。 套筒的选择性旋转将钻头定位成指定的方位以形成偏斜井眼。 包括在组件中的是具有与驱动轴密封接触的端部的流动管。
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公开(公告)号：WO2017003948A1
公开(公告)日：2017-01-05
申请号：PCT/US2016/039647
申请日：2016-06-27
Applicant: BITSWAVE INC.
Inventor： DAVIS, Treston Greggory , MARSHALL, Ricki Don
Abstract: A steerable earth boring assembly which includes an annular collar and a drive shaft with a drill bit, where the shaft pivots with respect to the collar. An upper portion of the shaft inserts into an orientation sleeve which resides in the collar. An axial bore is obliquely formed through the sleeve, and in which the upper portion inserts. Rotating the sleeve causes precession of the upper portion, thereby pivoting the drill bit obliquely to the collar. Selective rotation of the sleeve orients the drill bit into a designated orientation for forming a deviated wellbore. Included in the assembly is a flow tube with an end in sealing contact with the drive shaft.
Abstract translation: 一种可操纵的钻孔组件，其包括环形套环和具有钻头的驱动轴，其中所述轴相对于所述套环枢转。 轴的上部插入到位于套环中的定向套筒中。 轴向孔通过套筒倾斜地形成，其中上部插入。 旋转套筒导致上部的进动，从而使钻头倾斜地枢转到套环。 套筒的选择性旋转将钻头定向到指定的方向以形成偏斜井眼。 包括在组件中的是具有与驱动轴密封接触的端部的流动管。
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公开(公告)号：WO2017000053A1
公开(公告)日：2017-01-05
申请号：PCT/CA2015/050618
申请日：2015-07-02
Applicant: HALLIBURTON ENERGY SERVICES, INC.
Inventor： GHARIB, Hossam
IPC: E21B4/00
Abstract: A drilling apparatus having a drive section and a bearing section axially distal to the drive section. The bearing section includes a bearing housing having a bearing housing bore defining a bearing housing bore axis, a sleeve assembly received within the bearing housing bore, the sleeve assembly having a sleeve assembly bore defining a sleeve assembly bore axis, a driveshaft received within the sleeve assembly bore, and a bearing assembly for rotatably supporting the driveshaft within the sleeve assembly bore. The sleeve assembly includes a plurality of axially arranged sleeve sections. The sleeve assembly bore axis is oblique to the bearing housing bore axis. The sleeve sections may be received within the bearing housing bore so that they maintain a fixed angular position relative to each other and relative to the bearing housing, and so that they maintain a fixed axial position relative to the bearing housing.
Abstract translation: 一种具有驱动部分和轴向部分轴向远离驱动部分的钻孔设备。 所述轴承部分包括具有轴承壳体孔的轴承壳体，所述轴承壳体孔限定轴承壳体孔轴线，套筒组件容纳在所述轴承壳体孔内，所述套筒组件具有限定套筒组件孔轴线的套筒组件孔， 组件孔和用于在套筒组件孔内可旋转地支撑驱动轴的轴承组件。 套筒组件包括多个轴向布置的套筒部分。 套筒组件孔轴线与轴承座孔轴线倾斜。 套筒部分可以被容纳在轴承壳体孔内，使得它们相对于彼此和相对于轴承壳体保持固定的角度位置，并且使得它们相对于轴承壳体保持固定的轴向位置。
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公开(公告)号：WO2016140685A1
公开(公告)日：2016-09-09
申请号：PCT/US2015/019051
申请日：2015-03-05
Applicant: HALLIBURTON ENERGY SERVICES, INC.
Inventor： LANGE, Gustav , WHEELER, Fraser
CPC classification number: E21B7/067 , E21B17/20 , E21B47/024
Abstract: Adjustable drill string housings are described for use in the directional drilling of wellbores, e.g. wellbores for hydrocarbon recovery wells. The adjustable drill string housings permit adjustment of a bend angle in the housings without removing the housings from a wellbore. In some exemplary embodiments, the bend angle can be adjusted by changing the internal stresses in a support member carried by the housings. In other embodiments, the bend angle may be adjusted by causing failure of sacrificial support members carried by the housings, and the failure may be caused by delivering chemicals through a chemical delivery system to the sacrificial support members. Methods of operating the adjustable drill string housings include multi-lateral drilling operations wherein the bend angle is adjusted when a casing window has been detected.
Abstract translation: 描述可调节的钻柱壳体用于井筒的定向钻井，例如， 烃回收井井筒。 可调节的钻柱壳体允许调节壳体中的弯曲角度而不将壳体从井筒移除。 在一些示例性实施例中，可以通过改变由壳体承载的支撑构件中的内部应力来调节弯曲角度。 在其他实施例中，可以通过引起由壳体承载的牺牲支撑构件的故障来调节弯曲角度，并且可能通过将化学品通过化学物质输送系统递送到牺牲支撑构件而引起故障。 操作可调节钻柱壳体的方法包括多侧钻井操作，其中当检测到壳体窗口时调整弯曲角度。
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公开(公告)号：WO2016108817A1
公开(公告)日：2016-07-07
申请号：PCT/US2014/072516
申请日：2014-12-29
Applicant: HALLIBURTON ENERGY SERVICES, INC.
Inventor： SAVAGE, John Keith , JONES, Stephen
Abstract: A drilling assembly includes a straight housing in which a mud motor assembly is mounted. The mud motor includes a rotor that rotates within a stator. The rotor has an axial centerline substantially parallel with the housing. A drivetrain is coupled between the rotor and a driveshaft. The driveshaft is coupled to a drill head. The driveshaft has a centerline that is non-coincident with (i.e., offset or angled) the axial centerline. The angle between the driveshaft centerline and the axial centerline may be fixed or variable. The angle may be variable in response to an axial force, imparted to the rotor, that is transferred to the driveshaft through the drivetrain. Additional apparatus, systems, and methods are disclosed.
Abstract translation: 钻井组件包括其中安装有泥浆马达组件的直的壳体。 泥浆马达包括在定子内旋转的转子。 转子具有基本上平行于壳体的轴向中心线。 传动系联接在转子和驱动轴之间。 驱动轴联接到钻头。 驱动轴具有与轴线中心线不一致（即，偏移或成角度）的中心线。 驱动轴中心线和轴心中心线之间的角度可以是固定的或可变的。 该角度可以响应于赋予转子的轴向力而变化，该转矩通过传动系传递到驱动轴。 公开了附加装置，系统和方法。
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