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公开(公告)号：US07503405B2
公开(公告)日：2009-03-17
申请号：US11737034
申请日：2007-04-18
申请人： David R. Hall , Tyson J. Wilde , Carla Hedengren
发明人： David R. Hall , Tyson J. Wilde , Carla Hedengren
IPC分类号： E21B7/04
摘要： In one aspect of the invention a drill string has a rotary valve disposed within its bore. The valve has a first disc attached to a driving mechanism and a second disc axially aligned with and contacting the first disc along a flat surface. Each disc has a port adapted to align with each other periodically when the discs rotate relative to one another. The aligned ports are adapted to direct fluid to at least one nozzle disposed in a working face of a drill bit of the drill string.
摘要翻译： 在本发明的一个方面，钻柱具有设置在其孔内的旋转阀。 阀具有附接到驱动机构的第一盘和沿着平坦表面轴向对准并接触第一盘的第二盘。 当盘相对于彼此旋转时，每个盘具有适于周期性地彼此对准的端口。 对准的端口适于将流体引导到布置在钻柱的钻头的工作面中的至少一个喷嘴。
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公开(公告)号：US20070221409A1
公开(公告)日：2007-09-27
申请号：US11737034
申请日：2007-04-18
申请人： David R. Hall , Tyson J. Wilde , Carla Hedengren
发明人： David R. Hall , Tyson J. Wilde , Carla Hedengren
IPC分类号： E21B7/04
摘要： In one aspect of the invention a drill string has a rotary valve disposed within its bore. The valve has a first disc attached to a driving mechanism and a second disc axially aligned with and contacting the first disc along a flat surface. Each disc has a port adapted to align with each other periodically when the discs rotate relative to one another. The aligned ports are adapted to direct fluid to at least one nozzle disposed in a working face of a drill bit of the drill string.
摘要翻译： 在本发明的一个方面，钻柱具有设置在其孔内的旋转阀。 阀具有附接到驱动机构的第一盘和沿着平坦表面轴向对准并接触第一盘的第二盘。 当盘相对于彼此旋转时，每个盘具有适于周期性地彼此对准的端口。 对准的端口适于将流体引导到布置在钻柱的钻头的工作面中的至少一个喷嘴。
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