| 发明名称 |
FOCUSED SYMMETRIC PIPE INSPECTION TOOLS |
| 摘要 |
An electromagnetic sensor for a pipe inspection tool includes a first coil antenna having a wire wrapped about a first core in a first direction, and a second coil antenna axially offset from the first coil and the wire wrapped about a second core in a second direction. A power source is coupled to the wire such that, when excited by the power source, the first coil antenna generates a first magnetic field in a first polar orientation and the second coil antenna generates a second magnetic field in a second polar orientation opposite the first polar orientation. |
| 申请公布号 |
US2016187523(A1) |
申请公布日期 |
2016.06.30 |
| 申请号 |
US201514909912 |
申请日期 |
2015.06.17 |
| 申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
Sanmartin Luis Emilio;Khalaj Amineh Reza;Donderici Burkay |
| 分类号 |
G01V3/28;E21B47/00 |
主分类号 |
G01V3/28 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An electromagnetic sensor for a pipe inspection tool, comprising:
a first coil antenna having a wire wrapped about a first core in a first direction; a second coil antenna axially offset from the first coil and having the wire wrapped about a second core in a second direction; and a power source coupled to the wire, wherein, when excited by the power source, the first coil antenna generates a first magnetic field in a first polar orientation and the second coil antenna generates a second magnetic field in a second polar orientation opposite to the first polar orientation. |
| 地址 |
Houston TX US |
