Application of Chemometric Approaches in the Method of Passive Adsorption of Hydrocarbons when Searching for Oil and Gas
It is considered the possibility of using the technology of passive adsorption of soil-ground gas hydrocarbons (more than 85 hydrocarbon compounds from C<sub>2</sub> to C<sub>20</sub>) with the use of projection approaches to the multidimensional analysis of the array of chromatography-mass spectrometry data for the search for oil and gas fields . Field studies were carried out in real geochemical conditions, and it was shown that the discriminant method of projections onto latent structures (PLS-DA) makes it possible to establish a relationship between chromatographic data and matrix D regression responses, which can later be used to estimate the oil content of territorial objects. The result of processing the PLS-DA dataset was converted into a probability map of finding oil and gas deposits for subsequent geochemical evaluation.