PROCESS OF PUMPING OF FLUID INTO ROCK MASS AND GEAR FOR ITS REALIZATION Russian patent published in 2000 - IPC

FIELD: mining industry, rendering rock mass loosened and wetted. SUBSTANCE: process of pumping of fluid into rock mass includes drilling of holes, their sealing and pumping of fluid into them with the aid of multiplunger pumping plant. First holes are treated with fluid under pressure of natural absorption till process stabilizes. Then fluid is pumped into holes under pulse mode till moment of hydraulic seam fracture. Pulses are fed into each hole with phase shift. Gear to pump fluid into rock mass includes multiplunger pumping plant fitted with pressure and intake valves, tank with fluid, line to supply fluid and instrumentation. Low-pressure pump is placed in line supplying fluid. Transfer from one operational mode to another is carried out with the help of distributors, each of them being connected with its first inlet to outlet of low-pressure pump and with another inlet-to pressure valve of proper plunger and outlet of distributor is connected to inlet of one or several units sealing holes. EFFECT: enhanced efficiency of treatment process thanks to stage-by-stage and uniform action on rock mass and enlarged radius of treatment with due account of filtration and collector properties of rock mass. 3 cl, 2 dwg