| 发明名称 |
ROLL REDUCTION SYSTEM FOR ROTARY STEERABLE SYSTEM |
| 摘要 |
Roll reduction system for rotary steerable system. A well drilling system includes a tubular housing that attaches inline in a drill string and a bit drive shaft supported to rotate in the housing by a roll reduction system. The roll reduction system includes a first gear carried by the housing to rotate relative to the housing and coupled to rotate with the bit drive shaft, and a second gear carried by the housing to rotate relative to the housing and coupled to the first gear to rotate in an opposite direction to the first gear. |
| 申请公布号 |
US2015368973(A1) |
申请公布日期 |
2015.12.24 |
| 申请号 |
US201314766927 |
申请日期 |
2013.03.05 |
| 申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
Gajji Bhargav;Gaikwad Rahul Ramchandra;Agarwal Puneet |
| 分类号 |
E21B4/00;E21B7/06;E21B17/10 |
主分类号 |
E21B4/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A well drilling system comprising:
a tubular housing that attaches inline in a drill string; a bit drive shaft supported to rotate in the housing by a roll reduction system, the roll reduction system comprising:
a first gear carried by the housing to rotate relative to the housing and coupled to rotate with the bit drive shaft; anda second gear carried by the housing to rotate relative to the housing and coupled to the first gear to rotate in an opposite direction to the first gear. |
| 地址 |
Houston TX US |
