New data obtained with magnetotelluric method supplement a seismic and a geological section when oil and gas researches carry out. The magnetotelluric method is considered to be a regional method till recently but it becomes exploring method when new generation equipment had appeared. Magnetotelluric data and seismic data correspond to each other quite well. It allows judging about prospects of oil-and-gas content of reefs. A dispersion of resistivity field allows revealing some features of geoelectrical section.
The reflection of epigenetic processes in the petrophysical equations used in assessing the filtration-volume properties of reservoir rocks was revealed, and a mechanism for taking these processes into account, which increases the reliability of hydrocarbon field reserves assessment was proposed.
