There are many types of natural gas fields including shale formations that are common especially in the St-Lawrence Valley (Canada). Since methane (CH4), the major component of shale gas, is odorless, colorless and highly flammable, in addition to being a greenhouse gas, methane emanations and/or leaks are important to consider for both safety and environmental reasons. Telops recently launched on the market the Hyper-Cam Methane, a field-deployable thermal infrared hyperspectral camera specially tuned for detecting methane infrared spectral features under ambient conditions and over large distances. In order to illustrate the benefits of this novel research instrument for natural gas imaging, the instrument was brought on a site where shale gas leaks unexpectedly happened during a geological survey near the Enfant-Jesus hospital in Quebec City, Canada, during December 2014. Quantitative methane imaging was carried out based on methane’s unique infrared spectral signature. Optical flow analysis was also carried out on the data to estimate the methane mass flow rate. The results show how this novel technique could be used for advanced research on shale gases.
Marc-André Gagnon, Pierre Tremblay, Simon Savary, Vincent Farley, Éric Guyot, Philippe Lagueux, Vince Morton, Jean Giroux, and Martin Chamberland, "Passive thermal infrared hyperspectral imaging for quantitative imaging of shale gas leaks," Proc. SPIE 10428, Earth Resources and Environmental Remote Sensing/GIS Applications VIII, 1042818 (Presented at SPIE Remote Sensing: September 14, 2017; Published: 5 October 2017); https://doi.org/10.1117/12.2277315.
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Study of self-shadowing effect as a simple means to realize nanostructured thin films and layers with special attentions to birefringent obliquely deposited thin films and photo-luminescent porous silicon