FIELD: oil and gas industry.
SUBSTANCE: holes are made in soil using a manual metal rod. Collecting sorbers are arranged in the provided holes. Process exposure is performed for sorption of soil-ground air. Collected samples are analysed as per thermal desorption - gas-chromatography - mass selective analysis chain, and more than 80 hydrocarbon compounds are determined with accuracy of up to 1 picogram. Analysis results are compared to reference data. Obtained data is interpreted in the algorithm of the training and map generation system by means of analysis of main components, discriminant analysis and hierarchical cluster analysis. Deposits are modelled as per trained criteria.
EFFECT: simpler production; higher efficiency of searching.
7 dwg
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