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    • 1. 发明申请
    • TORQUE RESISTANT COUPLING FOR OILWELL TOOLSTRING
    • 用于油井工具的耐扭矩联接
    • US20110073325A1
    • 2011-03-31
    • US12570840
    • 2009-09-30
    • Steven HendersonLarry GrigarTommie DunnKerry HamiltonRebecca A. Santiago
    • Steven HendersonLarry GrigarTommie DunnKerry HamiltonRebecca A. Santiago
    • E21B23/00E21B33/068
    • E21B17/043
    • A downhole oilwell toolstring having an adapter having a male threaded portion, a longitudinally extending tubular female housing having a female threaded portion on an inner surface of the housing, a first end located proximate to the female threaded portion, a second end located distal to the female threaded portion, and a recessed groove extending around the circumference of the interior surface of the female housing at a location between the first end the female threaded portion. The adapter has a first end that is distal from the threaded portion and a second end that is proximate to the threaded portion, and a recessed groove extending around the outer circumference of the adapter at a location between the threaded portion and the first end of the adapter. The female housing is connected with the male adapter by way of the female threaded portion and the male threaded portion engaging one another. A ring is located in the recessed groove in the adapter and the recessed groove in the female housing.
    • 一种具有接合器的井下油井工具串,其具有阳螺纹部分,纵向延伸的管状阴壳体,在壳体的内表面上具有阴螺纹部分,位于靠近阴螺纹部分的第一端, 内螺纹部分和凹槽,凹槽在阴内螺纹部分的第一端之间的位置处围绕阴壳体的内表面的圆周延伸。 适配器具有远离螺纹部分的第一端和靠近螺纹部分的第二端,以及在螺纹部分和第一端之间的位置处围绕适配器的外圆周延伸的凹槽 适配器。 阴壳体通过内螺纹部分与阳适配器连接,阳螺纹部分彼此接合。 环位于适配器中的凹槽中,凹形凹槽位于阴壳中。