发明名称 |
ANGULAR POSITION SENSOR WITH MAGNETOMETER |
摘要 |
An angular position sensor can include a magnetic device from which a magnetic field emanates, and multiple magnetometers, whereby each magnetometer senses a varying strength of the magnetic field due to relative rotation between components of a well tool. A method of determining an azimuthal position of a shaft which rotates relative to an outer housing can include securing a selected one of at least one magnetic device and at least one magnetometer to the shaft, securing the other of the magnetic device and the magnetometer to the outer housing, a fluid motor rotating the shaft relative to the outer housing in the well, and the magnetometer sensing a varying strength of a magnetic field emanating from the magnetic device as the shaft rotates relative to the housing. |
申请公布号 |
EP2867462(A4) |
申请公布日期 |
2016.06.15 |
申请号 |
EP20120880450 |
申请日期 |
2012.07.02 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
LOZINSKY, CLINT, P.;ZACHARKO, JONATHAN, P. |
分类号 |
E21B47/092;E21B47/01;E21B47/022;E21B49/00 |
主分类号 |
E21B47/092 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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