Method for forming an in situ oil shale retort with explosive ex

Method for forming an in situ oil shale retort with horizontal f

Method for forming uniform flow rubble bed

Method for fragmenting oil shale formation

Method for fragmenting underground formations by hydraulic press

Method for hydraulically mining unconsolidated subterranean mine

Method for igniting the top surface of oil shale in an in situ r

Method for immobilizing contaminants in previously leached ores

Method for improving solution flow in solution mining of a miner

Method for in situ minefields

Method for in situ recovery of liquid and gaseous products from

Method for in situ shale oil recovery

Method for in situ shale oil recovery

Method for introducing and blowing rock dust and device for...

Method for loading explosive laterally from a borehole

Method for locating the remaining recoverable mineral reserves d

Method for longwall mining with side-by-side arch sections

Method for manufacturing track for auger boring machine

Method for maximizing shale oil recovery from an underground for

Method for mining coal using ammonia and nitrifying bacteria