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    • 1. 发明授权
    • Downhole makeup tool for threaded tubulars
    • 用于螺纹管的井下化妆工具
    • US5404944A
    • 1995-04-11
    • US126379
    • 1993-09-24
    • Gerald LyndeRalph D. WrightRichard A. SukupPatrick R. Brand
    • Gerald LyndeRalph D. WrightRichard A. SukupPatrick R. Brand
    • E21B17/02E21B23/04E21B23/00
    • E21B17/021E21B23/04
    • A downhole tool for making up threaded connections between lower and upper tubulars within a well bore includes a lower anchoring member, an upper anchoring member, and a drive member including a movable piston assembly. A plurality of straight splines on the piston assembly and mating splines on a housing rotatable with the lower anchoring member allow axial movement while preventing rotational movement of the piston assembly with respect to the lower anchoring member during the tool driving stroke. The helical drive component on the piston assembly and a mating driven component rotatable with the upper anchoring member cooperate to rotate the upper anchoring member and thus the upper tubular to make up the downhole threaded connection. According to the method of the present invention, the upper and lower anchoring members are each secured to a respective tubular, and fluid pressure is increased to drive the piston assembly downward, thereby rotating the upper tubular. A torque sub may be provided including strain gauges for measuring makeup torque And for transmitting representative signals to the surface during the makeup operation.
    • 用于在井眼内部构造下管和上管之间的螺纹连接的井下工具包括下锚定构件,上锚固构件和包括可移动活塞组件的驱动构件。 活塞组件上的多个直花键和可与下锚固构件一起旋转的壳体上的配合花键允许轴向运动,同时防止活塞组件相对于下锚固构件在工具驱动行程期间的旋转运动。 活塞组件上的螺旋驱动部件和可与上部锚固部件一起旋转的配合从动部件协作以使上部锚定部件旋转,从而使上部管状物构成井下螺纹连接。 根据本发明的方法,将上下锚定构件分别固定在相应的管状件上,并且增加流体压力以向下驱动活塞组件,从而使上管旋转。 可以设置扭矩副,其包括用于测量化妆扭矩的应变仪,并用于在化妆操作期间将代表性的信号发送到表面。
    • 4. 发明授权
    • Packer mill
    • 封隔器磨
    • US5881816A
    • 1999-03-16
    • US834003
    • 1997-04-11
    • Ralph D. Wright
    • Ralph D. Wright
    • E21B23/00E21B31/16E21B33/10
    • E21B23/006E21B31/16
    • A packer mill system for milling a packer in a wellbore has been invented which has, in certain aspects, a bushing with a hollow generally cylindrically shaped bushing body with a bottom, a top, a bushing bore extending therethrough from top to bottom, and at least one key on an interior surface thereof, the at least one key projecting inwardly into the bushing bore, a mandrel initially disposable within the bushing, the mandrel having a hollow generally cylindrically shaped mandrel body with a top, a bottom, a mandrel bore extending therethrough from top to bottom, and a slot system formed in an exterior surface of the mandrel body, the at least one key disposed for movement through the slot system, engagement apparatus connected to the bottom of the mandrel body for engaging the packer, milling apparatus connected to the bottom of the bushing body and disposed for movement therethrough of the engagement apparatus, the slot system having a series of one or more interconnected slots through which the at least one key is movable, the series of interconnected slot(s) including one or more exits at the top and at the bottom for movement of the at least one key out from the slot system thereby freeing the bushing from the mandrel. In certain aspects torsion or torque is applied only by the slot system and only in a single direction so that, when using a downhole motor, a rotary shoe or other mill can be replaced or redressed and then reinserted into the wellbore through the slot system to continue milling.
    • 已经发明了一种用于在井眼中研磨封隔器的封隔器系统,其在某些方面具有具有中空的大致圆柱形的衬套主体的衬套,其具有底部,顶部,从顶部到底部延伸穿过的衬套孔, 至少一个键在其内表面上,所述至少一个键向内突出到所述衬套孔中,所述心轴最初是一次性的在所述衬套内,所述心轴具有中空的大致圆柱形的心轴本体,其具有顶部,底部,心轴孔, 以及形成在心轴体的外表面的槽系统,所述至少一个键设置成通过槽系统移动,接合装置连接到心轴本体的底部,用于接合封隔器,铣削装置 连接到衬套主体的底部并且设置成用于通过接合装置的移动,槽系统具有一系列一个或多个相互连接的槽th 所述至少一个键可移动的粗糙部分,所述一系列互连的狭槽在顶部和底部包括一个或多个出口,用于使所述至少一个键从所述狭槽系统移出,从而使所述衬套从所述心轴释放 。 在某些方面,扭矩或扭矩仅由狭槽系统施加并且仅在单个方向施加,使得当使用井下电动机时,可以更换或纠正旋转靴或其他磨机,然后通过槽系统将其重新插入到井筒中 继续研磨