发明名称 |
Directional casing drilling |
摘要 |
A directional drilling system, including a casing string, a casing latch disposed inside the casing string proximate a lower end of the casing string and coupled to the casing string, a rotary steerable system disposed inside the casing string and coupled to the casing latch, and a drill bit coupled to the rotary steerable system.
|
申请公布号 |
US7086485(B2) |
申请公布日期 |
2006.08.08 |
申请号 |
US20030735312 |
申请日期 |
2003.12.12 |
申请人 |
SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
MORIARTY KEITH ALAN;JOHNSON MICHAEL ROBERT |
分类号 |
E21B10/66;E21B7/04;E21B7/20 |
主分类号 |
E21B10/66 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|