发明授权
- 专利标题： Optical transducer and method for the simultaneous measurement of pressure and temperature in oil and gas wells
- 专利标题（中）： 光学传感器和同时测量油气井压力和温度的方法
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申请号： US11191243申请日： 2005-07-28
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公开(公告)号： US07308165B2公开(公告)日： 2007-12-11
- 发明人: Jose Luiz Arias Vidal , Manoel Felician da Silva Júnior , Ricardo Munoz Freitas , Arthur Martins Barbosa Braga , Luiz Carlos Guedes Valente , Rogério Dias Regazzi , Alexandre Sant'Anna Ribeiro , Lincoln Homero Thomé Ferreira , Joao Luiz dos Santos Lorenzo
- 申请人： Jose Luiz Arias Vidal , Manoel Felician da Silva Júnior , Ricardo Munoz Freitas , Arthur Martins Barbosa Braga , Luiz Carlos Guedes Valente , Rogério Dias Regazzi , Alexandre Sant'Anna Ribeiro , Lincoln Homero Thomé Ferreira , Joao Luiz dos Santos Lorenzo
- 申请人地址： BR
- 专利权人： Petroleo Brasileiro S.A. - Petrobras
- 当前专利权人： Petroleo Brasileiro S.A. - Petrobras
- 当前专利权人地址： BR
- 代理机构： Nixon & Vanderhye PC
- 优先权： BR0403240 20040810
- 主分类号： G02B6/00
- IPC分类号： G02B6/00
摘要：
An optical transducer 100, 200 and method for the simultaneous measurement of downhole pressure and temperature in a single- or multi-point configuration including a body 10a/10b with an elastic membrane 50 onto which at least one Bragg grating 60a/60b is attached, and at least an additional Bragg grating 60b/60a contained on the same optical fiber 30. The elastic membrane 50 conveys strain proportional to the pressure and temperature conditions to which is submitted said transducer to at least one Bragg grating 60a/60b, the portion of light not reflected by the Bragg gratings 60a, 60b continues along the remaining of the optical fiber 30.