METHOD OF DEMUDDING BOTTOM-HOLE ZONE AND INTERHOLE SPACE OF HOLES FOR MINING OF RARE METALS BY METHOD OF UNDERGROUND LEACHING Russian patent published in 2001 - IPC

FIELD: operation of boreholes. SUBSTANCE: prior to treatment of bottom-hole zone with field of elastic vibrations, hydrodynamic connection of holes with bed is analyzed and bed hydraulic permeability in interhole space is determined on the basis of hydrodynamic, geological, geophysical information and analysis of parameters of holes of given deposit in the course of their operation. Results of data processing are used for determination of conditions of treatment of bottom-hole zone and interhole space with elastic vibration field. Treatment with elastic vibration field is carried out in preset regime. Rate of removal of mudding materials from bottom hole and interhole space and rate of transfer of metal into leaching solution are monitored. On the basis if monitoring, conditions of treatment with elastic vibration field are corrected and recommendations are given on optimal conditions of hole operation at new values of permeability of bottom-hole zone and interhole space. Concrete conditions of treatment with elastic vibration field of bottom-hole zone and interhole space are offered. EFFECT: higher intensity of operation of production holes in mining of rare metals, for instance, uranium by treatment of bottom-hole zone and interhole space with elastic vibration field. 9 cl, 5 dwg