METHOD FOR BOREHOLE UNDERGROUND LEACHING OF MINERALS Russian patent published in 2024 - IPC E21B43/28 

FIELD: mining.

SUBSTANCE: proposed invention relates to mining, namely to geotechnological methods of development of mineral deposits by borehole underground leaching. Method of borehole underground leaching of minerals in conditions of occurrence of gas mudding of ore-bearing formation includes construction of a network of process wells, pumping of leaching solutions, pumping out of productive solutions. Network of process wells is constructed in stages — at the first stage, a design network of pumping and injection wells is constructed, and at the second stage, degassing wells are constructed. Latter are constructed in staggered order between rows of pumping and injection wells. After the formation degassing process is terminated, rows of design pumping wells are converted into rows of injection wells, and degassing wells are used as pumping ones.

EFFECT: increased efficiency of extraction due to elimination of gas mudding of ore bed and intensification of extraction of productive solutions.

1 cl, 2 dwg