METHOD OF SOFTENING POROUS MEDIUM UNDER DEVELOPMENT Russian patent published in 2009 - IPC E21C37/00 

FIELD: mining.

SUBSTANCE: this invention refers to the mining and building and is used during softening of rocks, coal layers, soils and other porous materials. Method includes pumping solutions of the surface-active agents into the mass 1 through the well 2. Surface-active agents includes injected thereto at least one aerogenic agent obtaining aerogenic agent directly in the pores and cracks of the developed porous medium. This aerogenic agent is used for the softening of the developed porous medium. Obtained aerogenic agent is capable of catalytic decomposition when contacting developed porous medium containing natural catalysts. Catalysts are supplied to the well. Here the aerogenic agents are used whereof the aerogenic agent is obtained during their chemical interaction. Aerogenic agent is obtained at the elevated temperature having thermal effect on the developed porous medium after the pumping of the SAM solutions and aerogenic agents. SAM and aerogenic agents are pumped into the mass separately. Before pumping of the SAM solutions and aerogenic agents the vaccum in the wells is created.

EFFECT: this invention allows to increase the efficiency of the softening.

7 cl, 1 dwg