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Seismic techniques are the dominant geophysical techniques for the characterization of subsurface... more Seismic techniques are the dominant geophysical techniques for the characterization of subsurface structures and stratigraphy. The seismic techniques also dominate the monitoring and mapping of reservoir injection and production processes. Borehole seismology, of all the seismic techniques, despite its current shortcomings, has been shown to provide the highest resolution characterization and most precise monitoring results because it generates higher signal to noise ratio and higher frequency data than surface seismic techniques. The operational environments for borehole seismic instruments are however much more demanding than for surface seismic instruments making both the instruments and the installation much more expensive. The current state-of-the-art borehole seismic instruments have not been robust enough for long term monitoring compounding the problems with expensive instruments and installations. Furthermore, they have also not been able to record the large bandwidth data ...
Development of 300 ° c Fiber Optic seismic sensors for Geothermal reservoir Imaging and Monitoring
Seismic techniques are the dominant geophysical techniques for the characterization of subsurface... more Seismic techniques are the dominant geophysical techniques for the characterization of subsurface structures and stratigraphy. The seismic techniques also dominate the monitoring and mapping of reservoir injection and production processes. Borehole seismology, of all the seismic techniques, despite its current shortcomings, has been shown to provide the highest resolution characterization and most precise monitoring results because it generates higher signal to noise ratio and higher frequency data than surface seismic techniques. The operational environments for borehole seismic instruments are however much more demanding than for surface seismic instruments making both the instruments and the installation much more expensive. The current state-of-the-art borehole seismic instruments have not been robust enough for long term monitoring compounding the problems with expensive instruments and installations. Furthermore, they have also not been able to record the large bandwidth data ...
We are introducing a new fiber optic sensor system implemented as a Fiber Optic Seismic Sensor (F... more We are introducing a new fiber optic sensor system implemented as a Fiber Optic Seismic Sensor (FOSS)™ for geophysical imaging and monitoring. We are presenting the design and experimental test results for the fiber optic sensor and comparing its performance with regular exploration geophones and high performance accelerometers. We demonstrate that the new Fiber Optic Seismic Sensor (FOSS)™ has a significantly better performance than the current state-of-the art coil geophones and accelerometers in terms of noise floor, sensitivity, frequency response and high temperature performance. We are also presenting the deployment system that makes it possible to deploy 1,000 (one thousand) downhole 3C seismic sensors in both vertical and horizontal boreholes.
A Fiber Optic Borehole Seismic Vector Sensor System for High Resolution CCUS Site Characterization and Monitoring
Energy Procedia, 2014
Seismic techniques are the dominant geophysical techniques for the characterization of subsurface... more Seismic techniques are the dominant geophysical techniques for the characterization of subsurface structures and stratigraphy. The seismic techniques also dominate the monitoring and mapping of reservoir injection and production processes. Borehole seismology, of all the seismic techniques, despite its current shortcomings, has been shown to provide the highest resolution characterization and most precise monitoring results because it generates higher signal to noise ratio and higher frequency data than surface seismic techniques. The operational environments for borehole seismic instruments are however much more demanding than for surface seismic instruments making both the instruments and the installation much more expensive. The current state-of-the-art borehole seismic instruments have not been robust enough for long term monitoring compounding the problems with expensive instruments and installations. Furthermore, they have also not been able to record the large bandwidth data ...
Development of 300 ° c Fiber Optic seismic sensors for Geothermal reservoir Imaging and Monitoring
Seismic techniques are the dominant geophysical techniques for the characterization of subsurface... more Seismic techniques are the dominant geophysical techniques for the characterization of subsurface structures and stratigraphy. The seismic techniques also dominate the monitoring and mapping of reservoir injection and production processes. Borehole seismology, of all the seismic techniques, despite its current shortcomings, has been shown to provide the highest resolution characterization and most precise monitoring results because it generates higher signal to noise ratio and higher frequency data than surface seismic techniques. The operational environments for borehole seismic instruments are however much more demanding than for surface seismic instruments making both the instruments and the installation much more expensive. The current state-of-the-art borehole seismic instruments have not been robust enough for long term monitoring compounding the problems with expensive instruments and installations. Furthermore, they have also not been able to record the large bandwidth data ...
We are introducing a new fiber optic sensor system implemented as a Fiber Optic Seismic Sensor (F... more We are introducing a new fiber optic sensor system implemented as a Fiber Optic Seismic Sensor (FOSS)™ for geophysical imaging and monitoring. We are presenting the design and experimental test results for the fiber optic sensor and comparing its performance with regular exploration geophones and high performance accelerometers. We demonstrate that the new Fiber Optic Seismic Sensor (FOSS)™ has a significantly better performance than the current state-of-the art coil geophones and accelerometers in terms of noise floor, sensitivity, frequency response and high temperature performance. We are also presenting the deployment system that makes it possible to deploy 1,000 (one thousand) downhole 3C seismic sensors in both vertical and horizontal boreholes.
A Fiber Optic Borehole Seismic Vector Sensor System for High Resolution CCUS Site Characterization and Monitoring
Energy Procedia, 2014