FIELD: geophysics.
SUBSTANCE: invention relates to geophysics and can be used in oil and gas geology to optimize the placement of parametric, prospecting, exploration and production wells, detailed geophysical, mainly seismic works, and resource assessment on the explored oil and gas prospects in high carbon bituminous deposits. Method comprises ground seismic surveys using the common depth point method (CDPM), core drilling, electrical, radioactive, acoustic and seismic logging, thermometry and point measurements of temperatures and reservoir pressures, core study for the assessment of organic matter, well testing and judgment on the presence of oil and gas productive types of geological section based on the obtained data. According to GIS and CDPM seismic survey data, spectral-temporal images (STI) of various types of geological sections are established, and their quantitative spectral-temporal attributes (STA) are determined. Seismic STA, pressure, temperature and organic matter content are certified according to the maximum difference for different types of geological section. Result of the use of the method in the form of a map of oil and gas productive types of geological section is obtained by formalized integrated interpretation of certified seismic, thermobaric and geochemical attributes based on the use of artificial neural networks using the Kohonen algorithm and probabilistic-statistical algorithms. Thus, oil and gas types of geological section are identified quantitatively at any point of the space under study.
EFFECT: improved reliability and accuracy of the substantiation of conditions of placement of parametric, prospecting, exploration and production wells, CDPM seismic surveys and, on this basis, increased geological and economic efficiency of geological exploration of oil and gas in high-carbon bituminous deposits.
1 cl, 2 dwg
