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    • 7. 发明申请
    • VALVE DEVICE AND ASSOCIATED METHODS OF SELECTIVELY COMMUNICATING BETWEEN AN INTERIOR AND AN EXTERIOR OF A TUBULAR STRING
    • 阀门设备和相关的方法之间的内部和外部的一个管状的字符串之间的选择性交流
    • US20100084130A1
    • 2010-04-08
    • US12247115
    • 2008-10-07
    • William Mark RICHARDSWilliam D. Henderson
    • William Mark RICHARDSWilliam D. Henderson
    • E21B44/00
    • E21B21/103E21B34/102E21B43/04
    • A valve device and associated methods of selectively communicating between an interior and an exterior of a tubular string. A valve device includes an openable and closable flowpath for selectively permitting and preventing flow between an interior and exterior of the valve device, and a lock assembly which prevents the flowpath from being opened greater than a predetermined number of times. A method of testing at least one annular seal in an annulus formed between a tubular string and a wellbore wall includes the steps of: sealingly engaging the annular seal to thereby prevent flow through the annulus across the annular seal; and applying a pressure differential across the annular seal to thereby test the annular seal, the pressure differential being applied via a valve device interconnected in the tubular string
    • 一种阀装置以及在管状柱体的内部和外部之间选择性地连通的相关方法。 阀装置包括可开启和关闭的流路,用于选择性地允许和防止阀装置的内部和外部之间的流动,以及防止流路打开大于预定次数的锁组件。 一种测试形成在管状管柱和井眼壁之间的环形空间中的至少一个环形密封件的方法包括以下步骤:密封地接合环形密封件,从而防止环通过环形密封件的流动; 并且跨越所述环形密封件施加压力差,从而测试所述环形密封件,所述压差通过互连在所述管状柱体中的阀装置施加
    • 8. 发明授权
    • Packer with back-up retrieving method
    • 封隔器具有备份检索方法
    • US5667016A
    • 1997-09-16
    • US585214
    • 1996-01-11
    • William D. HendersonJeffrey J. Lembcke
    • William D. HendersonJeffrey J. Lembcke
    • E21B23/06E21B33/129
    • E21B33/129E21B23/06
    • A packer or bridge plug is described which may be released by manipulation of the production tubing connected to it. If manipulation of the production tubing is unsuccessful in releasing the packer, the tensile strength of the production tubing need not be exceeded in attempting to remove the packer. Instead, the production tubing is removed along with certain internal components of the packer. Thereafter, heavy-wall tubing, with or without jars, can be lowered into the wellbore with a retrieving tool at the bottom of that string. The retrieving tool latches onto components of the packer to allow an alternative method of release which allows for use of significantly higher tensile loads to liberate the packer from the wellbore.
    • 描述了封隔器或桥塞,其可以通过操纵与其连接的生产管道来释放。 如果生产管道的操作不能释放封隔器,则在尝试去除封隔器时不必超过生产管道的拉伸强度。 相反,生产管道与封隔器的某些内部部件一起被移除。 此后,带有或不带有罐的重壁管可以通过该绳索底部的检索工具下降到井筒中。 检索工具锁定到封隔器的部件上,以允许另一种释放方法,其允许使用显着更高的拉伸载荷来从井眼释放封隔器。