发明名称 |
POINT THE BIT ROTARY STEERABLE SYSTEM |
摘要 |
A method, device, and system is described herein for pointing a rotary drill bit. A rotary bit pointing device is positioned between a proximal end of a control shaft and a universal joint. As the bottom hole assembly rotates, various portions of the rotary bit pointing device are enabled and subsequently disabled to apply a substantially constant force in a substantially constant direction to the control shaft. Such a force causes the distal end of the control shaft to point the rotary drill bit in a target direction. |
申请公布号 |
CA2850018(A1) |
申请公布日期 |
2013.04.04 |
申请号 |
CA20122850018 |
申请日期 |
2012.09.27 |
申请人 |
HUTTON, RICHARD;RUTLAND, JEFF |
发明人 |
HUTTON, RICHARD;RUTLAND, JEFF;RUTLAND, JEFF |
分类号 |
E21B7/08;E21B44/00 |
主分类号 |
E21B7/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|