ASSESSMENT OF GEOECOLOGICAL CONSEQUENCES OF HYDROCARBON EXTRACTION ON THE SHELF
Time analysis of the level of seismicity in the territories of intensive hydrocarbon production shows a clear trend of increasing seismic activity. At the same time, the maximum magnitude of registered earthquakes is noted after the start of production activities. The paper presents methods for assessing the tension of the geological massif before the production process (natural tension), after the extraction of hydrocarbon raw materials from the reservoir and after pumping water into the reservoir. The study is carried out using the block element method, with the introduction of a block element in the form of a cut-out ball for reservoir modeling. Expressions for the functional and pseudo-differential equations and the integral representation of the solution are obtained. Model calculations were performed, and the main trends in tension changes were identified. The results obtained can be used in monitoring systems for assessing the geoecological consequences of mining activities to develop preventive measures that allow performing a prospective analysis of man-made stresses in the earth’s crust and assessing the risk of a seismic event before the start of the production process.