Fiber Optic 4C Seabed Cable For Permanent Reservoir Monitoring

Maas, Steve; Buchan, I.

doi:10.1109/ut.2007.370762

Cited by 9 publications

(7 citation statements)

References 1 publication

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“…[142] As shown in Figure 42a, Steven J. Maas et al established an accelerometer monitoring system in the ocean by employing multiple fiber accelerometers to achieve real-time monitoring of the health status of the structure in three dimensions. [145] In tunnel safety construction monitoring, Wenzhu Huang et al used a high-sensitivity fiber seismometer array for 8 km long-range monitoring of underpass tunnels, as shown in Figure 42b. [146] The system can record the vibration response of the tunnel structure and the train, offering safe and reliable information for the safety assessment of the tunnel structure and train operation.…”

Section: Structural Health Monitoringmentioning

confidence: 99%

“…established an accelerometer monitoring system in the ocean by employing multiple fiber accelerometers to achieve real‐time monitoring of the health status of the structure in three dimensions. [ 145 ] In tunnel safety construction monitoring, Wenzhu Huang et al. used a high‐sensitivity fiber seismometer array for 8 km long‐range monitoring of underpass tunnels, as shown in Figure 42b.…”

Section: Applications Of Optical Interferometric Mems Accelerometermentioning

confidence: 99%

Section: Applications Of Optical Interferometric Mems Accelerometermentioning

confidence: 99%

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Optical Interferometric MEMS Accelerometers

Zhao,

Qi,

Wang

et al. 2023

Laser & Photonics Reviews

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Laser interferometry is one of the most accurate measurement technologies whose displacement resolution can reach the femtometer (fm) level. With the development of Micro‐Electro‐Mechanical Systems(MEMS) technology, many excellent optical interferometric MEMS sensors have emerged, which play an essential role in intelligent manufacturing, aerospace, and many other fields. Among them, optical interferometric MEMS accelerometers develop rapidly due to their high sensitivity, low noise, and anti‐electromagnetic interference advantages. Lots of research in optical interferometric chip design, micro‐nano fabrication process, signal demodulation algorithm, and range extension technology are performed, and different types of MEMS accelerometers based on the optical interferometric principles are developed, which have been demonstrated and applied in the fields of disaster monitoring, equipment operation and maintenance, and resource exploration. This paper reviews the development status of optical interferometric MEMS accelerometers, mainly focusing on the critical problems and solutions that need to be solved in the development process of optical interferometric accelerometers, and finally introduces the typical application scenarios.

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Section: Structural Health Monitoringmentioning

confidence: 99%

Section: Applications Of Optical Interferometric Mems Accelerometermentioning

confidence: 99%

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Optical Interferometric MEMS Accelerometers

Zhao,

Qi,

Wang

et al. 2023

Laser & Photonics Reviews

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“…This is usually done in an overwhelming hydrostatic pressure background where the ratio of intensities of the quietest acoustic signals at sea to the hydrostatic background is of the order of 10 −9 . This is no simple task, but over the past decade the air-backed mandrel hydrophone has emerged commercially as the preferred type for seismic seabed work [7,17,18]. A brief review of the design, basic operational principle and other properties of the hydrophone are given below.…”

Section: The Optical Fibre Hydrophonementioning

confidence: 99%

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

Freitas¹

2011

Meas. Sci. Technol.

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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.

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“…Some frontier researches are ongoing to reduce the deployment and fabrication cost [14], to enhance the signal detection capability or signal resolution [15], to enhance the spatial coverage by the introduction of fiber optic sensors. These frontier researches are all related to the cable technology which could be introduced in the industry from scientific applications [16].…”

Section: Other Innovative Projectsmentioning

confidence: 99%

Development of Japanese scientific cable technology

Mikada

Asakawa

2008

Oceans 2008

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Fig. 1 Eight cabled observatories around Japan for Earthquake Monitoring and Engineering Developments [1]. They are a) JMA Off-Suruga, b) JMA Off-Boso, c) ERI East Off-Izu Peninsula, d) NIED Sagami-Trough, e) ERI Off-Sanriku, A) JAMSTEC Hatsushima Engineering Development, B) JAMSTEC Off-Muroto, and C) JAMSTEC Off-Tokachi-Kushiro systems. Circled water areas were advocated by the Headquarters of Earthquake Research Promotion that the realtime observations are necessary for future potential of catastrophic earthquakes.Abstract-Japanese ocean science community has installed eight cabled observatories in Japanese water in the past. Japan started installing cabled observatories in the middle of 1970's for disaster mitigation as countermeasure to possible megathrust earthquake in the Tokai region, about 100 km away from Tokyo. Their first system composed of metal wires used frequency modulated signal transmission for carrying data acquired on the seafloor to land. The first Japanese cabled observatory was installed in 1978, i.e., five years after the initiation of engineering development. Since 1990, all newly installed cabled observatories have used fiber optic communication lines following the technological development in the telecom industry. Obviously, the development of scientific cabled observations adjusted their stride with that in the industry. Since the major telecom cables have been installed in a point-to-point configuration, scientific cabled observatories have been developed in the same way. In general, they have a land station and a line of cable along which observational instruments or junction boxes are connected in-line in the place of repeaters. Recently, scientists started trying to expand their observations in a way to enhance observational capabilities using multi-disciplinary sensors as the growth of their understanding to invisible processes in the sea. Cabled observatory projects are now underway to enable next-step data acquisition on the seafloor with much wider spatial coverage and dense observational instruments. Technological development from a point-to-point configuration to a network, whose topology could be either ring or star shape, has become necessary. Power supply and communication mechanisms to all of sensors attached to observatory need to be revisited as well.

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Fiber Optic 4C Seabed Cable For Permanent Reservoir Monitoring

Cited by 9 publications

References 1 publication

Optical Interferometric MEMS Accelerometers

Optical Interferometric MEMS Accelerometers

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

Development of Japanese scientific cable technology

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