METHOD plugging geological boreholes, have lost from the surface, such as the development of mineral deposits tubular after its open development and the transition to underground

摘要

Method plugging geological boreholes lost from the surface, for example, in developing tubular mineral deposits after the closure of its open design and switching to an underground, comprising drilling of a horizontal underground excavation extending below the aquifer towards each geological well least two working wells and one control borehole and creating plugging stoppers in the barrel of each geological borehole, characterized in that the opening to the underground deposit for th liquidation horizons using geodetic calculations are probabilistic location of the center of each geological wells and determine the size of R allowable approaching future horizontal exploratory mine workings depending on! R = ρ + ΔL when ρ r,! where r - radius probable location area geological boreholes, m; ! ρ - protective pillar radius, meters; ! ΔL - length of embedment of the conductor in well plugging polutorakratnogo based on hydrostatic pressure in an earth borehole, m! after opening the deposit horizontal underground workings of them are horizontal search underground workings, the tangent of one of its side surfaces to a circle of radius R centered at a probability of intersection of the geometrical axis of each geological wells Elimination horizon through conductor defined preventer drilled parallel horizontal exploration wells with a step that does not exceed the working range of geolokatora action, and after completion of the drilling of the second exploration HP well ins and subsequent wells prosvechiva