| 发明名称 |
DRILL BIT DISTANCE TO HOLE BOTTOM MEASUREMENT |
| 摘要 |
Systems and methods for drilling a wellbore. The method includes measuring a first distance that a drilling device is raised while connected to a drill string, determining a weight-on-bit in the drill string, determining a second distance to lower the drilling device such that a drill bit at a lower extremity of the drill string approaches toward a bottom of the wellbore, based on the first distance and the weight-on-bit, and lowering the drilling device by the second distance. |
| 申请公布号 |
US2016369617(A1) |
申请公布日期 |
2016.12.22 |
| 申请号 |
US201514899873 |
申请日期 |
2015.12.17 |
| 申请人 |
SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
Zheng Shunfeng;Jeffryes Benjamin Peter;Orban Jacques;Tunc Gokturk |
| 分类号 |
E21B47/04;G01B11/22;E21B47/00;E21B19/00;E21B19/10 |
主分类号 |
E21B47/04 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for drilling a wellbore, comprising:
measuring a first distance that a drilling device is raised while connected to a drill string; determining a weight-on-bit in the drill string; determining a second distance to lower the drilling device such that a drill bit at a lower extremity of the drill string approaches toward a bottom of the wellbore, based on the first distance and the weight-on-bit; and lowering the drilling device by the second distance. |
| 地址 |
Sugar Land TX US |
