Recent developments in seismic seabed oil reservoir monitoring applications using fibre-optic sensing networks

Abstract

This review looks at recent developments in seismic seabed oil reservoir monitoring techniques using fibre-optic sensing networks. After a brief introduction covering the background and scope of the review, the following section focuses on state-of-the-art fibre-optic hydrophones and accelerometers used for seismic applications. Related metrology aspects of the sensor such as measurement of sensitivity, noise and cross-axis performance are addressed. The third section focuses on interrogation systems. Two main phase-based competing systems have emerged over the past two decades for seismic applications, with a third technique showing much promise; these have been compared in terms of general performance.

A Fiber-Optic Interferometric Tri-Component Geophone for Ocean Floor Seismic Monitoring

“…The sensor with the compliant cylinder structure responds linearly in frequency below the sensor’s resonance [11,28]. Thus the sensitivity of the sensor is expressed as $R_e=\frac{\Delta \phi }{a},$ where $∆\phi$ is the phase shift induced by the acceleration $a$ which is detected by a standard commercial MEMS accelerometer in our measurement, with the test results shown in Figure 9.…”

Development and research of fiber-optic hydrophone protective housing

“…Оптическая часть одиночных волоконно-оптических гидрофонов представляет собой волоконно-оптический интерферометр, чувствительное плечо которого наматывается на сердечник, изготовленный из материала, обеспечивающего высокую чувствительность гидрофона к акустическому давлению [9][10][11]. Аналогичный волоконно-оптический гидрофон, построенный на основе интерферометра Маха-Цендера, входит в состав действующего макета донной сейсмической станции [12][13][14].…”

Theoretical and experimental study of suppressing stimulated Brillouin scattering and phase noise in interferometric fiber sensing systems with phase modulation

“…Currently, interferometric fiber sensing systems have been widely used in many fields such as oil exploration and underwater sensing [2,3]. With the development of the multiplex technique and optical amplifier technique, long-haul and large-scale array systems have come into reality [3][4][5].…”