Demonstration of Fiber-Optic Seismic Sensor With Improved Dynamic Response in Oilfield Application

被引：4

作者：

Yi, Duo ^{[1
]}

Liu, Fei ^{[2
]}

Zhang, Min ^{[3
]}

He, Xiangge ^{[3
]}

Zhou, Xian ^{[2
]}

Long, Keping ^{[2
]}

Li, Xuejin ^{[4
]}

机构：

[1] Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen 518061, Peoples R China

[2] Univ Sci & Technol Beijing, Sch Comp & Commun Engn, Beijing 100083, Peoples R China

[3] Peking Univ, Beijing Int Ctr Gas Hydrate, Beijing 100871, Peoples R China

[4] Chinese Univ Hong Kong, Shenzhen 518172, Peoples R China

来源：

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 2022年 / 71卷

基金：

中国国家自然科学基金;

关键词：

Damping; Resonant frequency; Optical fiber sensors; Vibrations; Time-frequency analysis; Optical fiber theory; Correlation coefficient; Dynamic response; fiber-optic seismic sensor (FOSS); seismic detection; ACCELEROMETER; GEOPHONE;

D O I：

10.1109/TIM.2021.3128713

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Dynamic response of the seismic sensor is crucial, particularly for ultra-weak vibration detection. The related researches almost focus on traditional electrical ones. However, for fiber-optic seismic sensor (FOSS), the dynamic response, as well as the on-site results, is rarely reported. This study thoroughly evaluates the theoretical mechanism for improving the dynamic response of FOSS and its applications in the oilfield. The Ricker wavelet is utilized to simulate the applied seismic signal, and its dynamic response output is investigated. The influences of peak frequency and damping ratio on resonance wave suppression and correlation coefficient improvement are discussed. Besides, the perforation shot detection based on ten-level 3-component FOSS arrays is demonstrated in the oilfield. The basic FOSSs and damping-optimized FOSSs are both manufactured for dynamic response comparison. The signal features, including attenuation time, correlation coefficient, and principal frequency component distribution, all confirm the dynamic response improvement of the proposed damping-optimized FOSS array.

引用

页数：8

共 23 条

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