公开(公告)号：US20140332278A1

公开(公告)日：2014-11-13

申请号：US14366377

申请日：2012-12-18

申请人： FLEXIDRILL LIMITED

发明人： Gregory Donald West ,  Mark Christopher Cunliffe

IPC分类号： E21B7/24 ,  E21B10/36 ,  E21B1/02

CPC分类号： E21B7/24 ,  E21B1/02 ,  E21B6/04 ,  E21B10/36 ,  E21B28/00

摘要： Apparatus, methods and uses that allow extended reach drilling by virtue of the provision in the drillstring and to downhole tools collective vibrations, not tuned specifically to a single resonant frequency, from a hammer assembly that provides vibrations of different frequency ranges.

摘要翻译： 装置，方法和用途，其通过提供钻柱和井下工具允许从提供不同频率范围的振动的锤组件而将未特别调谐到单个谐振频率的集体振动允许扩展到达钻孔。

公开(公告)号：US10472895B2

公开(公告)日：2019-11-12

申请号：US15645806

申请日：2017-07-10

申请人： FLEXIDRILL LIMITED

发明人： Peter Evan Powell ,  Mark Christopher Cunliffe

IPC分类号： E21B7/24 ,  E21B25/00 ,  E21B10/48

摘要： Disclosed is a vibratory apparatus for a drilling apparatus comprising: a housing, a rotor operable to rotate relative to the housing, the rotor comprising one or more sets of magnets, a shuttle engaged to enable movement longitudinally, the shuttle comprising one or more follower magnets, each arranged relative to a corresponding set of magnets in the rotor, wherein each set of magnets comprises magnets arranged around the rotor with a lateral spread such that on rotation the corresponding follower magnet on the shuttle will move longitudinally to follow one or more rotating magnets of the set, thus oscillating the shuttle longitudinally.