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23 October 2014 CARS technique for geological exploration of hydrocarbons deposits
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Abstract
We developed a Raman lidar with ultraspectral resolution for automatic airborne monitoring of pipeline leaks and for oil and gas exploration. Experiments were carried out under the CARS circuit. Minimal concentrations of 200 ppb of heavy hydrocarbon gas have been remotely measured in laboratory tests. Test flights indicate that a sensitivity of 6 ppm for methane and 2 ppm for hydrogen sulfide has been reached for leakage detection. As estimations have shown the reliability of heavy hydrocarbon gas detection by the integration method of seismic prospecting and remote laser sensing in CARS circuit can exceed 80%.
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A. P. Zhevlakov, Victor Bespalov, V. V. Elizarov, A. S. Grishkanich, S. V. Kascheev, E. A. Makarov, S. A. Bogoslovsky, and A. A. Il’inskiy "CARS technique for geological exploration of hydrocarbons deposits", Proc. SPIE 9245, Earth Resources and Environmental Remote Sensing/GIS Applications V, 92451U (23 October 2014); https://doi.org/10.1117/12.2067945
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