Hydraulic mining method

Details Hydraulic mining method Hydraulic mining method

E - Fixed Constructions

21

C

262/68

E21C 25/60 (2006.01) E21B 43/29 (2006.01)

Patent

CA 1236128

HYDRAULIC MINING METHOD ABSTRACT OF THE DISCLOSURE A method of hydraulically mining an underground pitched mineral vein comprising drilling a vertical borehole through the earth's lithosphere into the vein and drilling a slant borehole along the footwall of the vein to intersect the vertical borehole. Material is removed form the mineral vein by directing a high pressure water jet thereagainst. The resulting slurry of mineral fragments and water flows along the slant borehole into the lower end of the vertical borehole from where it is pumped upwardly through the vertical borehole to the surface.

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