Formation of hydrochemical indicators for reservoirs of oil deposits of the Surgut arch
The causes of the spatial variation of hydrochemical characteristics of groundwater of some oil deposits of the Surgut crest of Western Siberia. On the basis of statistical processing of the database, including several thousand analyzes of groundwater salinity distribution histograms, concentration of Ca2+ and HCO3 for the main productive horizons deposits. Substantiates theinfluence of deep inflow (hydrothermal) treatment on the formation of the chemical composition of formation water of oil fields, which is expressed in increasing the depth of the content of HCO3 ion.