发明名称 |
Method and apparatus for monitoring vibration using fiber obtic sensors |
摘要 |
<p>A apparatus for monitoring a downhole component is disciosed. The apparatus inciudes: an optical fiber sensor inciuding a plurality of sensing locations distributed along a length of the optical fiber sensor; an interrogation assembly configured to transmit an electromagnetic interrogation signal into the optical fiber sensor and receive reflected signals from each of the plurality of sensing locations; and a processing unit configured to receive the reflected signals, select a measurement location along the optical fiber sensor, select a first reflected signal associated with a first sensing location in the optical fiber sensor, the first sensing location corresponding with the measurement location, select a second reflected signal associated with a second sensing location in the optical fiber sensor, estimate a phase difference between the first signal and the second signal, and estimate a pararneter of the downhole component at the measurement location based on the phase difference.</p> |
申请公布号 |
DK201300373(A) |
申请公布日期 |
2013.06.18 |
申请号 |
DK20130000373 |
申请日期 |
2013.06.18 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
DUNCAN, ROGER G.;CHILDERS, BROOKS A.;HARMAN, ROBERT M.;BALAGOPAL, AJIT |
分类号 |
G01V8/16;E21B47/00;G01V8/10 |
主分类号 |
G01V8/16 |
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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