发明名称 |
WELL TOOLS SELECTIVELY RESPONSIVE TO MAGNETIC PATTERNS |
摘要 |
A system for use with a subterranean well can include a magnetic sensor, a magnetic device which propagates a magnetic field to the magnetic sensor, and a barrier positioned between the magnetic sensor and the magnetic device. The barrier can comprise a relatively low magnetic permeability material. A method of isolating a magnetic sensor from a magnetic device in a subterranean well can include separating the magnetic sensor from the magnetic device with a barrier interposed between the magnetic sensor and the magnetic device, the barrier comprising a relatively low magnetic permeability material. A well tool can include a housing having a flow passage formed through the housing, a magnetic sensor in the housing, and a barrier which separates the magnetic sensor from the flow passage, the barrier having a lower magnetic permeability as compared to the housing. |
申请公布号 |
WO2013151658(A1) |
申请公布日期 |
2013.10.10 |
申请号 |
WO2013US29762 |
申请日期 |
2013.03.08 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
KYLE, DONALD G.;MERRON, MATTHEW J.;FRIPP, MICHAEL L. |
分类号 |
E21B47/092;E21B34/14;E21B43/12 |
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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