Methane & Gas detection

Gas & methane detection and identification

Environmental monitoring is now an important stake for industrial manufacturers, which requires to have highly sensitive instruments to ensure people safety and pollution reduction. To avoid high maintenance costs and severe risks of pollution, gas transportation companies need to efficiently detect gas leaks all along the pipelines, from the production site to the consumers. Industrials from the Oil & Gas industry are also experiencing the same challenges around or within their facilities. They need to properly control their emissions of gases such as NOx, Methane, Ammonia, Oxygen, NO, SO2, SO3, SF6 etc.

Some detection options can be considered between chemical, electrical and optical solutions. Optical Gas Imaging (OGI) has been identified as the most relevant technic for gas detection. Exosens proposes to OEMs and companies working to maintain industrial structures some short wave infra-red (SWIR) or thermal imaging solutions. LWIR cameras have become a popular tool, either for routine inspection or failure diagnosis, beside other advanced NDT non-destructive testing technologies. Overall, thermal cameras secure predictive maintenance, while limiting inspectors’ expositions to hazardous areas and supporting these environmental monitoring challenges.

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Methane Detection

Methane Detection

Methane Detection

With the Telops Hyper-Cam, scientists are able to detect and identify methane present in a scene, and to locate it precisely in an image or video, pixel by pixel. Recently, scientists from Linköping University, in Sweden, were thus able to « film » methane emissions in real time – a breakthrough that could play a significant role in the fight against climate change. Their results were published in the prestigious journal Nature Climate Change.

Methane Detection

Methane Detection

The Telops Hyper-Cam has also been successfully used by Total E&P under an R&D project to demonstrate the real-time 3D reconstruction of methane gas clouds. During the experiment, three Hyper-Cams were installed around the area being observed and networked to a central computer. Each Hyper-Cam produced in real-time a radiometrically calibrated hyperspectral image. The computer merged the hyperspectral data from the imagers to compute and display the 3D cloud as well as to estimate the leak rate. Total’s work has been presented at the SPE/ATCE Conference in Dubai, UAE, on September 28th, 2016.

Infrared imaging can help visualize fugitive emissions and small gas leaks under various environmental conditions and industrial contexts. As many gases are toxic and/or flammable, like natural gas (CH4), efficient gas detection from a remote location is advantageous for safety purposes. The selectivity brought by high-resolution infrared hyperspectral imaging allows to identify the chemical nature of the gases, reducing at the same time the frequency of false alarms.

Volcanology

Volcanology

Volcanology

The unpredictable behavior of volcanos make infrared remote sensing a very attractive investigation tool for surveillance and academic purposes. Passive infrared hyperspectral imaging allows the detection and identification of multiple gases like sulfur dioxide (SO2) and silicon fluoride (SiF4) coming out from craters and fumaroles, from distant locations, without the need of additional equipment.

Volcanology

Volcanology

One of our Field Applications Scientist, Marc-André Gagnon, along with a team of French scientists from the Université Blaise Pascal, climbed the Stromboli volcano, in Italy, to gather hyperspectral thermal imaging data of its eruption with the Telops Hyper-Cam.

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