Yatsyuta D. Application of the method of analysis of spontaneous electromagnetic emission of the Earth for hydrocarbons search in the Black Sea.

The thesis presents the results of the study of the Earth's crust oil and gas promising areas of Prykerchensky shelf and the north-western shelf of the Black Sea using the method of analysis of spontaneous electromagnetic emission of the Earth (ASEMEE). In principle it is proved that the registration of the natural pulse of electromagnetic radiation on the surface of the water environment allows getting the information about the structure and geodynamic processes beneath the sea bottom. The software and algorithmic support for allocation of local anomalies of pulsed electromagnetic radiation with minimal distortion have been developed on the basis of the latest achievements in mathematical data processing methods aimed primarily at processing of non-linear signals and fields. The software products which provide the high speed data processing and technological field measurements were developed. The conceptual understanding of the geological structure and oil and gas content of Prykerchensky shelf and transition zone from the north-west shelf to the continental slope of the Black Sea have been systematized. The results of aerogeophysical researches applying ASEMEE method confirmed the presence and location of major known structures within the Kerch water area and provided an opportunity to discover 23 new local uplifts. The landslides system of fragile and viscous types was determined for the first time, and as a result the separate blocks of folds of Prykerchensky shelf are shifted and form four large extended blocks that can be traced to the whole depth of survey, but do not break the Pliocene sediments. The results of marine researches by ASEMEE method indicate that the most favorable area for search of conventional oil and gas and gas hydrates in the transition zone from the northwest shelf to the continental slope of the Black Sea is the band of several kilometers located on the seabed with depth of about 500 - 1000m. This zone is located in the south end zone of intense gas shows. It is proved that the application of ASEMEE method will optimize exploration drilling, significantly increase success coefficient and the volume of proven oil and gas reserves and reduce their cost. n.