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| 光纤复合型油气井下压力温度测量系统 | |
| 引用本文： | 张向东,李育林,彭文达,王卫平,乔学光.光纤复合型油气井下压力温度测量系统[J].光子学报,2003,32(7):864-867. |
| 作者姓名： | 张向东 李育林 彭文达 王卫平 乔学光 |
| 作者单位： | 1. 中国科学院西安光学精密机械研究所,西安,710068 2. 深圳大学光电子学研究所,深圳,518060 3. 西安石油学院,西安,710065 |
| 基金项目： | 国家自然科学基金资助课题 (6 0 1770 2 8) |
| 摘 要： | 针对目前广泛使用的电子式油气井下压力温度测量系统可靠性低、高温环境漂移大的不足,设计了一种基于非本征型F-P干涉仪(EFPI)和光纤布喇格光栅(FBG)的复合型油气井下压力、温度测量系统,详细说明了其工作原理、传感器组成和信号解调方法,初步试验结果表明,该测量系统不仅克服了电子测量方式的不足,而且具有复用性好、测量精度高等优点. |
| 关 键 词： | 油气井 非本征型F-P干涉仪 光纤光栅 温度压力传感器 |
| 收稿时间： | 2002/8/29 |
| 修稿时间： | 2002年8月29日 |
Pressure and Temperature Measurement System Based on EFPI Combined with FBG for Oil and Gas Down-hole |
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| Zhang Xiangdong,Li Yulin,Peng Wenda,Wang Weiping,Qiao Xueguang.Pressure and Temperature Measurement System Based on EFPI Combined with FBG for Oil and Gas Down-hole[J].Acta Photonica Sinica,2003,32(7):864-867. | |
| Authors: | Zhang Xiangdong Li Yulin Peng Wenda Wang Weiping Qiao Xueguang |
| Institution: | 1. Xi′an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi′an 710068;2. Optoelectronics Institute of Shenzhen University Shenzhen 518060;3. Xi′an Petroleum Institute, Xi′an 710065 |
| Abstract: | To overcome the long-term unstability and large shift of the electrical temperature and pressure sensing system used in the oil and gas down-hole at present, a fiber-optic compound system based on EFPI and FBG for this measurement is designed, its working principle, components and signal dividing and demodulating methods are also proposed in detail. The primary testing results show that the aforementioned drawbacks of the electrical sensing systems has been overcome by this novel fiber-optic sensing system , and it also owns many merits such as easily to be multiplexed, high accuracy, good linearity and so on. |
| Keywords: | Oil/gas down-hole Extrinsic Febry-Perot interferometer Fiber Bragg grating Temperature and pressure sensor |
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