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公开(公告)号：US4984636A
公开(公告)日：1991-01-15
申请号：US313688
申请日：1989-02-21
IPC分类号： E21B23/06 , E21B33/129
CPC分类号： E21B33/1292 , E21B23/06
摘要： A geothermal wellhead repair unit including a mechanically set packer to isolate the wellhead for removal and repair thereof. The packer is run into the well string using a running tool. The packer is set by placing tension on the mandrel to set the packing elements and the slip assembly. Once the packer is set, the running tool can be disengaged without gear of collapsing the packer and the wellhead removed for repair or replacement. Upon replacement of the wellhead, the running tool can be used to unset and retrieve the packer.
摘要翻译： 一个地热井口修复单元，包括机械设置的封隔器，用于隔离井口，以便拆卸和修理井口。 打包机使用运行工具运行到井筒中。 封隔器通过在心轴上放置张力来设置包装元件和滑动组件来设定。 一旦封隔器被固定，运行的工具可以脱开，而不会使封隔器塌缩，而拆除井口进行修理或更换。 在更换井口时，可以使用运行的工具来取消打包和取回封隔器。
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公开(公告)号：US4962819A
公开(公告)日：1990-10-16
申请号：US305213
申请日：1989-02-01
IPC分类号： E21B21/10
CPC分类号： E21B21/106 , Y10T137/6154
摘要： A mud saver valve for insertion within the drill string to retain mud in the drill pipe and prevent the mud column from flowing past the valve when pumping is interrupted. The valve body has a tubular body and a piston having an axial passage for the flow of drilling mud. This piston is biased within the body by a spring and axially movable in response to the mud flow. A check valve plug is disposed within the bore which may be removed to run wireline tools. The plug is seated within a reduced diameter portion of the body and includes a replaceable inner sleeve which engages the piston to prevent flow through the valve. The inner sleeve is replaced as it becomes worn due to the erosive forces of the drilling mud.
摘要翻译： 一种用于插入钻柱中以将钻井液中的泥浆保留的防泥塞阀，并且当泵送中断时防止泥浆柱流过阀门。 阀体具有管状体和具有用于钻井泥浆流动的轴向通道的活塞。 该活塞通过弹簧偏压在主体内，并可响应泥浆流动而轴向移动。 孔内设有一个止回阀塞，可以将其移除以运行电缆工具。 塞子位于主体的直径减小的部分内，并且包括可更换的内套筒，其接合活塞以防止流过阀门。 内套由于钻井泥浆的侵蚀力而被磨损而被更换。
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公开(公告)号：US5040600A
公开(公告)日：1991-08-20
申请号：US540712
申请日：1990-06-20
IPC分类号： E21B23/06 , E21B33/129
CPC分类号： E21B33/1292 , E21B23/06
摘要： A geothermal wellhead repair unit including a mechanically set packer to isolate the wellhead for removal and repair thereof. The packer is run into the well string using a running tool. The packer is set by placing tension on the mandrel to set the packing elements and the slip assembly. Once the packer is set, the running tool can be disengaged without fear of collapsing the packer and the wellhead removed for repair or replacement. Upon replacement of the wellhead, the running tool can be used to unset and retrieve the packer.
摘要翻译： 一个地热井口修复单元，包括机械设置的封隔器，用于隔离井口，以便拆卸和修理井口。 打包机使用运行工具运行到井筒中。 封隔器通过在心轴上放置张力来设置包装元件和滑动组件来设定。 一旦封隔器被固定，运行的工具就可以脱开，而不用担心打包机塌缩，并将井口拆下来进行修理或更换。 在更换井口时，可以使用运行的工具来取消打包和取回封隔器。
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公开(公告)号：US4754820A
公开(公告)日：1988-07-05
申请号：US875886
申请日：1986-06-18
申请人： James T. Watts , Eric G. Dodd
发明人： James T. Watts , Eric G. Dodd
CPC分类号： E21B33/085 , E21B33/04 , Y10S285/912
摘要： A drilling head with an upper body assembly removably clamped onto a stationary spool via a bayonet-type coupler clamp rotated into clamped and unclamped positions by a remote controlled hydraulic motor connected to the clamp by a ring and pinion gear. The upper body assembly has a kelly bushing, a corrugated drive bushing rotatable with the kelly bushing, a drive ring rotatable with the drive bushing a bearing assembly surrounding the drive ring, and an elastomeric stripper connected to the drive ring for rotation therewith. The stripper is adapted for sealing engagement with a rotating kelly drive which slides down through the drilling head. Quick connect/disconnect lubrication fittings on the clamp and upper body assembly are releasably mated upon rotation of the clamp to the clamped position to provide lubrication from a single lubrication line to both the bearing assembly and seals via passageways formed in the outer body of the upper body assembly.
摘要翻译： 具有上主体组件的钻头，其通过由通过环形和小齿轮连接到夹具的遥控液压马达通过卡口式联接器夹紧件可拆卸地夹紧到固定卷轴上。 上身组件具有凯利衬套，可与凯利衬套一起旋转的瓦楞驱动衬套，与驱动衬套一起旋转的驱动环，围绕驱动环的轴承组件，以及连接到驱动环以与其一起旋转的弹性体汽提器。 剥离器适于与旋转的凯利驱动器密封接合，其向下滑过钻头。 快速连接/断开夹具和上主体组件上的润滑配件在夹具旋转到夹紧位置时可释放地配合，以通过形成在上部的外部主体中的通道从单个润滑生产线向轴承组件和密封件提供润滑 身体装配。
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公开(公告)号：US5248896A
公开(公告)日：1993-09-28
申请号：US973602
申请日：1992-11-09
申请人： John Forrest
发明人： John Forrest
摘要： A power generation unit associated with a downhole drilling motor capable of producing sufficient rotational speeds to produce power for operating downhole devices associated with the drilling operation. The power generation unit takes advantage of the high speed precessional rotation of the rotor within the stator to drive the generator. The assembly includes a multi-lobed rotor displaceable within a stator using drilling fluid pumped therethrough. A crankshaft, mounted at one end concentric with the rotor and at its high speed take-off end concentric with the stator, transfers the rotor center precession to the shaft of the generator. In a preferred embodiment, the generator will include a socket for simply connecting downhole devices requiring electrical power.
摘要翻译： 与井下钻井电机相关联的发电单元，其能够产生足够的转速以产生用于操作与钻井操作相关联的井下装置的动力。 发电单元利用定子内的转子的高速进动旋转来驱动发电机。 该组件包括可在定子内使用从其中泵出的钻井液置换的多叶片转子。 安装在与转子同心的一端并且与定子同心的高速起飞端的曲轴将转子中心进动转移到发电机的轴上。 在优选实施例中，发电机将包括用于简单地连接需要电力的井下装置的插座。
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公开(公告)号：US5094304A
公开(公告)日：1992-03-10
申请号：US587882
申请日：1990-09-24
申请人： Gary M. Briggs
发明人： Gary M. Briggs
CPC分类号： E21B7/068
摘要： A selectively adjustable double bend positive positioning directional drilling system for kickoff from a main well bore to change the directiion of drilling. The tool is selectively adjustable to facilitate running into the vertical well bore and subsequently to provide an aggressive build rate upon kickoff. The tool string incorporates a pair of kickoff pads--a lower fixed pad and an upper rotatively adjustable pad. As the tool is run into the well bore the adjustable pad is oriented away from the bend in the motor housing. Once in the hole, the string would be rotated relative to the adjustable pad by the reactive torque of the downhole motor and locked in the desired orientation. The adjustable pad incorporates an internal slot system to guide rotation and lock the pad in position. Alternatively, a single arm underreamer-type assembly could be used as the upper kickoff pad.
摘要翻译： 一个选择性可调的双弯正定位定向钻井系统，用于从主井筒开始改变钻井的指导。 该工具可选择性地调节以便于进入垂直井眼，随后在开球时提供积极的建造速度。 工具串包括一对启动垫 - 下固定垫和上可旋转调节垫。 当工具进入井筒时，可调节的垫片远离电动机壳体中的弯曲部分。 一旦在孔中，弦将相对于可调节的垫通过井下电动机的反作用扭矩旋转并锁定在期望的方位。 可调节垫包括内部槽系统，以引导旋转并将垫锁定在适当位置。 或者，可以使用单臂扩孔器组件作为上部启动垫。
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公开(公告)号：US5009265A
公开(公告)日：1991-04-23
申请号：US404159
申请日：1989-09-07
IPC分类号： E21B19/086 , E21B23/06 , E21B33/12 , E21B33/129
CPC分类号： E21B33/1292 , E21B19/086 , E21B23/06 , E21B33/1294
摘要： A geothermal wellhead repair unit including a mechanically set packer to isolate the wellhead for removal and repair thereof. The packer is run into the well string using a running tool. The packer is set by placing tension on the mandrel to set the packing elements and the slip assembly. Once the packer is set, the running tool can be disengaged without fear of collapsing the packer and the wellhead removed for repair or replacement. Upon replacement of the wellhead, the running tool is used to unset and retrieve the packer.
摘要翻译： 一个地热井口修复单元，包括机械设置的封隔器，用于隔离井口，以便拆卸和修理井口。 打包机使用运行工具运行到井筒中。 封隔器通过在心轴上放置张力来设置包装元件和滑动组件来设定。 一旦封隔器被固定，运行的工具就可以脱开，而不用担心打包机塌缩，并将井口拆下来进行修理或更换。 在更换井口时，运行的工具用于取消打开和取回封隔器。
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8.发明授权Apparatus for controlled absorption of axial and torsional forces in a well string 失效用于受控吸收井筒中的轴向和扭转力的装置
公开(公告)号：US4901806A
公开(公告)日：1990-02-20
申请号：US223461
申请日：1988-07-22
申请人： John Forrest
发明人： John Forrest
CPC分类号： E21B17/073 , E21B44/005
摘要： A drill string apparatus for the controlled absorption of both axial and torsional forces exhibited on the well string during drilling operations. The device is adapted to be connected in the drill string above the drilling tool in order to control the forces acting on the bit and to arrange the mean weight on bit for the selected drilling operation. Generally, the apparatus includes an outer casing coupled at its upper end to the drill string and an inner assembly telescopically received within the outer casing and connected at its lower end to the lower part of the bottom hole assembly or the drilling tool. Rotational torque is transferred from the drill string and outer casing to the inner assembly and drill bit by a series of helical splines. The mean weight on bit is controlled through an interchangeable pressure control nozzle mounted at the top of the inner assembly. Dual pistons with corresponding fluid chambers dampen axial forces while the helical splines decouple the torsional forces from axial vibrations to ensure proper control of the drill bit. In addition to attenuating vibration in conventional drilling operations, the present invention can be utilized in highly deviated holes and in drill strings using coiled tubes.
摘要翻译： 用于在钻井操作期间在井筒上显示的轴向和扭转力的受控吸收的钻柱装置。 该装置适于连接在钻具上方的钻柱中，以便控制作用在钻头上的力，并将平均重量排列在钻头上用于选定的钻孔操作。 通常，该装置包括在其上端连接到钻柱的外壳和可伸缩地容纳在外壳内并且在其下端处连接到底孔组件或钻孔工具的下部的内部组件。 旋转扭矩通过一系列螺旋花键从钻柱和外壳传递到内组件和钻头。 钻头的平均重量通过安装在内部组件顶部的可互换压力控制喷嘴来控制。 具有相应流体室的双活塞抑制轴向力，而螺旋花键将扭转力与轴向振动分离，以确保钻头的适当控制。 除了在常规钻孔操作中衰减振动之外，本发明可以用于高度偏斜的孔和使用螺旋管的钻柱中。
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公开(公告)号：US4865137A
公开(公告)日：1989-09-12
申请号：US186716
申请日：1988-04-22
申请人： Thomas F. Bailey , John Campbell
发明人： Thomas F. Bailey , John Campbell
CPC分类号： E21B10/345 , E21B10/20 , E21B10/22
摘要： An underreamer including a body having a bore therethrough, an arm mounted at its upper end to the body, a sleeve member detachably secured to the lower end of each arm and adapted to receive the frictional wear caused by the rotation of the conical cutter mounted thereto. Bearings and seals disposed between the cutter and the sleeve member provide smooth rotation of the cutter. In addition, locking pins and bearings extending between the arm and the sleeve member secure the sleeve on the arm. The arms are pivotally mounted in slots in the body and mechanical structure is provided for moving the arms to their cutting position with their lower ends positioned radially outward from the body.
摘要翻译： 包括具有穿过其中的孔的主体，在其上端安装到主体的臂，可拆卸地固定到每个臂的下端并适于接收由安装在其上的锥形切割器的旋转引起的摩擦磨损的套筒构件 。 设置在切割器和套筒部件之间的轴承和密封件提供切割器的平滑旋转。 此外，在臂和套筒构件之间延伸的锁定销和轴承将套筒固定在臂上。 臂可枢转地安装在主体中的狭槽中，并且提供机械结构用于将臂移动到其切割位置，并且其下端从身体径向向外定位。
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公开(公告)号：US5269383A
公开(公告)日：1993-12-14
申请号：US822359
申请日：1992-01-15
申请人： John Forrest
发明人： John Forrest
CPC分类号： E21B47/022 , E21B4/02 , E21B41/0085 , E21B44/005 , E21B7/068
摘要： A navigable downhole drilling system incorporating a drilling motor having a system of sensors and information processors for determining the depth, inclination, direction and thrust of the drilling motor. Accordingly, the drilling operation can be continuously monitored and adjusted to ensure desired directional drilling. A programmed processor may be incorporated into the drilling system to guide the drilling motor along a predetermined course. A generator assembly provides power to the processors and sensors as a result of the precessional rotation of the rotor within the stator of the drilling motor. The overall length of the drilling system is minimized by piggybacking the thrust bearings with the power generation unit and siamesing the transmission assembly for the drilling motor with the power section of the motor. As a result, a downhole drilling system of navigable length is created which can be readily directed along the desired course.
摘要翻译： 一种可导航的井下钻井系统，其包括具有用于确定钻井马达的深度，倾斜度，方向和推力的传感器和信息处理器系统的钻井马达。 因此，可以连续地监视和调整钻孔操作，以确保期望的定向钻孔。 可以将编程的处理器并入到钻井系统中以沿着预定的过程引导钻井马达。 由于转子在钻孔马达的定子内的进动旋转的结果，发电机组件向处理器和传感器提供动力。 通过用发电单元搭载推力轴承，并利用电动机的动力部分将钻井电机的变速器组件分开，使钻井系统的总长度最小化。 结果，产生可导航长度的井下钻井系统，其可以沿着期望的路线容易地引导。
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