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Environmental satellite monitoring of the area under technogenic impact of oil and gas production in Tomsk Region

М.N. Alekseeva¹ , I.G. Yashchenko¹

¹ Institute of Petroleum Chemistry SB RAS, Tomsk, Russia

Accepted: 17.12.2021
DOI: 10.21046/2070-7401-2022-19-1-158-169

The work deals with the environmental monitoring studies of the oil-producing areas of Tomsk Region using remote sensing data. The importance of this work is due to the problem of associated petroleum gas flaring in flare units (FUs). The paper presents the graphical and numerical data on pollution distribution by air during associated petroleum gas combustion as well as map data obtained using remote sensing methods, MOD04 products, Sentinel-2 data and CALIOP lidar images available on the internet. It is shown that dark coniferous forests occupying 21 % of the territories in the dispersion zones from the flares in the Vasyugan group of fields, 33 % in the Luginetsk group of fields, and 27 % in the Krapivinskoye and Dvurechenskoye fields are subject to highest degradation risk. The most vulnerable tree species in the zones of dispersion of pollutants from the flares of the Yuzhno-Cheremshanskoye and Gerasimovskoye oil fields are light coniferous forests occupying 20 and 18 % of the dispersion areas, respectively. The aerosol optical depth (AOD) values are given according to the MOD 04_3k optical data obtained directly above the flares. A comparative analysis between the AOD values measured over the sites with active flares and the neighboring meteorological stations shows that, in 3 cases out of 5, the AOD values do not exceed the background AOD data measured in the vicinity of the FUs in the Dvurechenskoye, Krapivinskoye, Luginetskoye, Shinginskoye, and Yuzhno-Cheremshanskoye fields. In the Olen’ye, Stolbovoye, and Pervomayskoye fields, excessive (compared to the background) AOD values were recorded in the air on all measurements dates.A satisfactory state of the atmosphere with an insignificant anthropogenic aerosol load over the FUs of some of the fields is due to the advanced APG utilization technologies used by OOO Tomskneft. The CALIOP lidar profile showed smoke and dust pollution recorded in the zone of pollution dispersion from the FUs of the Vasyugan group of fields (Stolbovoye and Katylginskoye). This study demonstrates the powerful capabilities of space-borne monitoring of the state of the biosphere and atmosphere for identifying the technogenic environmental risks of exposure to the aerosol or heat impact in oil and gas producing areas.

Keywords: oil and gas fields, Tomsk Region, associated petroleum gas, flare units, vegetation cover, Sentinel-2 satellite data, MOD04 products, CALIPSO lidar data

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