METHOD OF HYDROGEODYNAMIC CLEANING OF WATER BEDS FROM PETROLEUM PRODUCTS AND HYDROGEODYNAMIC TRAP FOR PETROLEUM PRODUCTS Russian patent published in 2018 - IPC E21B37/00 E02D31/00 E02D19/10 

FIELD: oil and gas industry.

SUBSTANCE: group of inventions refers to the oil industry and can be used in oil storage tanks of light oil products while eliminating groundwater pollution. By the way, prospecting works of technogenic deposits are carried out. Hydrogeodynamic traps are formed with the formation in their center of a gravitational reservoir from fractured igneous rocks by drilling water-reducing wells. Carry out drilling of water-absorbing wells. They form a vertically oriented gravitational vessel of cylindrical shape with a storage volume excluding self-ejection of suspended petroleum products from the depression crater of fractured igneous rocks within the boundaries of the technogenic deposit of suspended oil products of increased volume. Between water-absorbing and water-reducing wells, water flow is created with the simultaneous separation of suspended petroleum products by drilling technological wells around water-reducing wells, that are covered with rubble or socketed with filters. Wells are taken through the wells from the deep part of the aquifer with the creation of a funnel of depression and localization of oil products in it. Pump localized oil products to the surface.

EFFECT: increasing the safety of extraction of petroleum products by increasing the gravitational capacity of fractured intrusive rocks of the saturation zone in the center of hydrogeodynamic traps – to reduce the size and depth of formation of dangerous gas-geochemical methane haloes.

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