| 发明名称 |
Magnetic Ranging While Rotating |
| 摘要 |
A method for magnetic ranging includes rotating a downhole tool in a drilling well in sensory range of magnetic flux emanating from a target well. The downhole tool includes a magnetometer set and an accelerometer set rotatably coupled to the tool. The magnetometer set and the accelerometer set acquire corresponding magnetometer measurements and accelerometer measurements while rotating. The magnetometer measurements are transformed to a rotation independent reference frame to obtain rotation invariant measurements which are in turn processed to compute at least one of a distance and a direction from the drilling well to the target well. |
| 申请公布号 |
US2015378043(A1) |
申请公布日期 |
2015.12.31 |
| 申请号 |
US201414318327 |
申请日期 |
2014.06.27 |
| 申请人 |
Schlumberger Technology Corporation |
发明人 |
Brooks Andrew |
| 分类号 |
G01V3/08;G01P15/00;E21B47/04 |
主分类号 |
G01V3/08 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for magnetic ranging comprising:
(a) rotating a downhole drilling tool in a drilling well in sensory range of magnetic flux emanating from a target well, the downhole tool including a magnetometer set and an accelerometer set rotatably coupled to the tool; (b) causing the magnetometer set and the accelerometer set to acquire corresponding magnetometer measurements and accelerometer measurements while rotating in (a); (c) transforming the magnetometer measurements acquired in (b) to a rotation independent reference frame to obtain rotation invariant measurements; (d) processing the rotation invariant measurements to compute at least one of a distance and a direction from the drilling well to the target well. |
| 地址 |
Sugar Land TX US |
