| 油井下用光纤温度压力传感器 |
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| 引用本文： | 赵庆超,郭士生,李舜水,刘嘉.油井下用光纤温度压力传感器[J].山东科学,2014,27(4):57-61. |
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| 作者姓名： | 赵庆超 郭士生 李舜水 刘嘉 |
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| 作者单位： | 1．山东省科学院激光研究所，山东 济南 250014;
2 中海石油（中国）有限公司上海分公司 ，上海 200030 |
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| 基金项目： | 山东省自主创新成果转化重大专项(2011ZHZX1A0107);山东省信息产业发展专项资金项目 |
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| 摘 要： | 研制了一种基于光纤F-P腔与光纤Bragg光栅的温度压力传感器,用于监测油井下的压力和温度。该传感器通过F-P腔腔长的变化监测油井下压力,通过光纤Bragg光栅反射波长的变化监测油井下温度。传感器测压范围0~69 MPa,实验测试和标定结果表明,传感器的压力响应与F-P腔腔长呈良好线性关系,线性拟合度为0.999 999;传感器测温范围5~175℃,温度精度±1℃。实际应用证明,该传感器可实时在线监测井下压力和温度状况,运行正常。
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| 关 键 词： | 油井 温度 压力 F-P腔 光纤Bragg光栅 |
| 收稿时间： | 2014-02-28 |
Optical fiber temperature and pressure sensor in an oil well |
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| ZHAO Qing-chao,GUO Shi-sheng,LI Shun-shui,LIU Jia.Optical fiber temperature and pressure sensor in an oil well[J].Shandong Science,2014,27(4):57-61. |
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| Authors: | ZHAO Qing-chao GUO Shi-sheng LI Shun-shui LIU Jia |
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| Institution: | 1. Laser Institute, Shandong Academy of Sciences, Jinan 250014, China;
2. Shanghai Branch, CNOOC Co, Ltd., Shanghai 200030, China |
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| Abstract: | We developed a temperature and pressure sensor based on optical F-P cavity and optical Bragg grating, which was used to monitor temperature and pressure in an oil well. It detected pressure by F-P cavity length variation and temperature by the change of optical Bragg grating reflection wavelength. Pressure measuring range is 0~69 MPa. Test and calibration results demonstrate that a better linear relationship exists between F-P cavity length and pressure response, linear fitting degree of 0.999 999. Temperature measuring range is 5~175 ℃, precision of ±1 ℃. Practical applications prove that the sensor can monitor real time pressure and temperature in an oil well and is reliable. |
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| Keywords: | pressure optical Bragg grating oil well temperature F-P cavity |
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