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    • 1. 发明授权
    • Shifting tool for a subterranean completion structure
    • 用于地下完井结构的移位工具
    • US5641023A
    • 1997-06-24
    • US511029
    • 1995-08-03
    • Colby M. RossDhirajlal C. PatelRonnie D. Finley
    • Colby M. RossDhirajlal C. PatelRonnie D. Finley
    • E21B34/00E21B34/14
    • E21B34/14E21B2034/005
    • In a well having a substantially annular completion structure therein, the completion structure having portions of lesser and greater inner diameter and an axially-shiftable element associated with the portion of greater inner diameter, the axially-shiftable element having an inner diameter greater than a diameter of the portion of lesser inner diameter, a shifting tool for, and method of, axially shifting the axially-shiftable element. The shifting tool comprises: (1) a first shifting tool portion having a first shifting profile associated therewith, the first shifting tool portion adapted to pass through the portion of lesser inner diameter and (2) a second shifting tool portion having a second shifting profile associated therewith, the first shifting profile engageable with the second shifting tool portion to cause the second shifting tool portion to move in concert with the first shifting tool portion, the second shifting profile engageable with the axially-shiftable element to cause the axially-shiftable element to move in concert with the second shifting tool portion, the first and second shifting tool portions thereby cooperable to provide substantial axial forces to shift the axially-shiftable element.
    • 在其中具有基本上环形的完井结构的井中,完井结构具有较小和较大内径的部分和与较大内径部分相关联的可轴向移动的元件,该轴向可移动元件的内径大于直径 较小内径的部分,用于轴向移动可轴向移动的元件的换档工具和方法。 换档工具包括:(1)第一移位工具部分,其具有与其相关联的第一变速轮廓,第一换档工具部分适于穿过较小内径的部分;以及(2)第二换档工具部分,具有第二换档轮廓 所述第一移动轮廓可与所述第二换档工具部分接合,以使所述第二换档工具部分与所述第一换档工具部分一致地移动,所述第二换档轮廓可与所述可轴向移动的元件接合,以使所述可轴向移动元件 与第二换档工具部分一起移动,第一和第二换档工具部分由此配合以提供实质的轴向力以移动可轴向移动的元件。
    • 5. 发明授权
    • Releasable running tool for setting well tool
    • 可释放的运行工具,用于设置好工具
    • US5404955A
    • 1995-04-11
    • US101713
    • 1993-08-02
    • Ralph H. Echols, IIIDhirajlal C. PatelTommy F. Grigsby
    • Ralph H. Echols, IIIDhirajlal C. PatelTommy F. Grigsby
    • E21B23/00E21B23/06
    • E21B23/06E21B23/00
    • A well tool assembly and a method of operating same including a clutch which provides a rotary-driving connection between a running tool and well tool mandrel when the running tool is rotated in a first direction (e.g. clockwise) and has cammed surfaces which ride up on complementary cammed surfaces on the mandrel to disengage the clutch when the running tool is rotated in a second (e.g. counterclockwise) or opposite direction. Once the clutch is disengaged, the running tool can be disconnected from the mandrel by rotating the running tool in said first direction. The clutch can be disengaged either hydraulically at the same time a well tool (e.g. a packer) is being hydraulically set or by rotation of the running tool in the second direction in the event the well tool assembly becomes stuck before the assembly reaches its destination.
    • 一种钻井工具组件及其操作方法,包括离合器,当离合器在第一方向(例如顺时针)上旋转运动工具时,该离合器提供运行工具和井身工具心轴之间的旋转驱动连接,并且具有骑马的凸轮 当行走工具在第二(例如逆时针)或相反方向旋转时,心轴上的互补的凸轮表面脱离离合器。 一旦离合器脱离,通过沿着所述第一方向旋转运行的工具,运行工具可以与心轴分离。 离合器可以同时液压地脱开,同时井具(例如封隔器)被液压地设置,或者在组件到达其目的地之前井工具组件被卡住的情况下沿着第二方向旋转。
    • 8. 发明授权
    • Universal washdown system for gravel packing and fracturing
    • 用于砾石包装和压裂的通用冲洗系统
    • US06378609B1
    • 2002-04-30
    • US09455018
    • 1999-12-09
    • Dean S. OnealKevin C. SerretteErvin Charlie Becker, IIIDhirajlal C. Patel
    • Dean S. OnealKevin C. SerretteErvin Charlie Becker, IIIDhirajlal C. Patel
    • E21B3312
    • E21B43/045
    • A universal washdown system for circulating fluid through a wellbore to clean debris therefrom and to gravel-pack a production zone is provided. The system includes a production assembly with a multi-position service tool assembly disposed therein. The multi-position service tool is connected to and sealingly engages a packer that is included in the production assembly. The multi-position service tool assembly moves from a first to a second position in the production assembly by pulling longitudinally thereon. The apparatus is lowered into the well with the service tool connected to the production assembly in the first position. When the service tool assembly is in the second position, fluid passing down through a longitudinal central flow passage defined therethrough is communicated with an annulus defined between a liner assembly and the wellbore through crossover ports defined in the service tool to allow a gravel pack fluid to pass into a desired formation.
    • 提供了一种通用的冲洗系统,用于使流体通过井筒循环以从其中清除碎屑并将生产区砾石包装。 该系统包括具有设置在其中的多位置维修工具组件的生产组件。 多位置维修工具连接到密封地接合包括在生产组件中的封隔器。 多位置维修工具组件通过在其上纵向牵拉而从生产组件中的第一位置移动到第二位置。 在第一位置连接到生产组件的维修工具将设备下降到井中。 当维修工具组件处于第二位置时,通过限定穿过其中的纵向中心流动通道的流体通过限定在服务工具中的交叉端口与限定在衬套组件和井眼之间的环形空间连通,以允许砾石充填流体 进入所需的地层。
    • 9. 发明授权
    • Through-tubing recirculating tool assembly for well completions
    • 管道循环工具组件,用于完井
    • US5343953A
    • 1994-09-06
    • US110851
    • 1993-08-24
    • Dhirajlal C. PatelTommy F. Grigsby
    • Dhirajlal C. PatelTommy F. Grigsby
    • E21B17/06E21B23/04E21B37/08E21B43/04E21B47/09E21B37/04
    • E21B17/06E21B23/04E21B37/08E21B43/04E21B47/091
    • A recirculating tool assembly is lowered on a length of coil tubing into the production tubing of a well completion to a location above side wall perforations in the production tubing which have become obstructed. The tool assembly includes an upper tool portion telescoped into and releasably latched within a lower sealing and tubing extension portion. Recirculating fluid is pumped down the coil tubing, flowed through a first tool assembly passage, and downwardly discharged into the production tubing. A portion of the discharged fluid is forced outwardly through the production tubing perforations to remove the obstructions therefrom, and the remainder of the discharged fluid is forced upwardly through a second tool assembly passage into the annulus between the coil tubing and the production tubing for return to the surface. After this recirculation process is completed the upper tool assembly portion is unlatched from the lower assembly portion, using fluid pressure within the coil tubing, and removed from the production tubing. An alternate embodiment of the tool assembly is used to form a gravel pack internally around additional perforations formed in the production tubing before the tool assembly is lowered into place therein. After the upper tool assembly portion is unlatched and removed, production fluid flows into the production tubing through these additional perforations and then flows into the lower portion of the tool assembly, through a sand screen structure carried thereon, for delivery to the surface.
    • 循环工具组件在一定长度的线圈管上下降到完井的生产管道中,该管道已经被堵塞在生产管道中的侧壁穿孔上方。 工具组件包括可伸缩并可释放地锁定在下部密封和管道延伸部分内的上部工具部分。 再循环流体被卷绕在线圈管上,流过第一工具组合通道,并向下排放到生产管道中。 排出的流体的一部分被迫向外通过生产管道穿孔以从其中移除阻塞物,并且排出的流体的其余部分被向上推动通过第二工具组件通道进入盘管和生产管道之间的环形空间,以返回到 表面。 在该再循环过程完成之后,利用线圈管内的流体压力将上部工具组件部分从下部组件部分解开,并从生产管道中移除。 工具组件的替代实施例用于在工具组件下降到位之前在生产管道中形成的附加穿孔内部形成砾石包装。 在上部工具组装部分被解锁和移除之后,生产流体通过这些附加的穿孔流入生产管道,然后通过其上承载的砂筛结构流入工具组件的下部,以输送到表面。
    • 10. 发明授权
    • Well packer
    • 好包装
    • US4671354A
    • 1987-06-09
    • US770149
    • 1985-08-27
    • William D. HendersonDhirajlal C. PatelDennis D. RoodRichard M. Sproul
    • William D. HendersonDhirajlal C. PatelDennis D. RoodRichard M. Sproul
    • E21B33/129E21B33/128
    • E21B33/1292
    • A well packer adapted to be set and reset in a well bore without removal of the packer from the well bore including a packer mandrel adapted to be connected with a tubing string, an interlocking segment assembly on the packer mandrel for releasable connection with the mandrel, a drag spring assembly connected with the interlocking segment assembly for frictional engagement with a well bore wall, a locking slip assembly coupled with the drag spring assembly for locking the packer with the well bore wall, a seal element package assembly connected with slip assembly for sealing around the packer mandrel with the well bore wall, and a detent ring between the slip assembly and the seal element package permitting initial setting of the upper ends of the slips and preloading of the seal element package preliminary to final setting of the slips and expansion of the seal element package.
    • 一种井式打包机,其适于在井眼中设置和复位,而不从井筒中移除封隔器,包括适于与油管柱连接的封隔器心轴,封隔器心轴上的互锁段组件,用于与心轴的可释放连接, 与所述互锁段组件连接以用于与井眼壁摩擦接合的阻力弹簧组件,与所述牵引弹簧组件耦合以用于将所述封隔器与所述井筒壁锁定的锁定滑动组件,与滑动组件连接的密封元件封装组件,用于密封 围绕具有井筒壁的封隔器心轴,以及在滑动组件和密封元件组件之间的止动环,允许初始设定滑动件的上端并预先装载密封元件包装以初步设定滑动件和扩张 密封元件包装。