发明名称 |
DRILL BIT STABILIZER AND METHOD OF USE |
摘要 |
<p>A stabilizer for a drill string and drill bit is mounted behind the drill bit in the drilling assembly. The stabilizer comprises a tubular body having one or more stabilizer blades mounted thereon. The stabilizer blades extend radially outwardly from the stabilizer body. In a first position, the stabilizer blades are in vertical axial alignment behind the drill bit. Drill string pressure is utilized to release a locking mechanism permitting relative rotation between the stabilizer blades and the stabilizer body thereby rotating the stabilizer blades to a second position providing stabilization for the drill string and drill bit.</p> |
申请公布号 |
CA2403727(A1) |
申请公布日期 |
2001.09.27 |
申请号 |
CA20012403727 |
申请日期 |
2001.03.19 |
申请人 |
ROTARY DRILLING TECHNOLOGY, LLC. |
发明人 |
HARVEY, PETER R.;KRASE, STEVEN J.;WOODS, MICHAEL J. |
分类号 |
E21B17/10;E21B23/04;E21B47/01;(IPC1-7):E21B17/10 |
主分类号 |
E21B17/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|