135657 ⎘
Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells; Obtaining a slurry of minerals, e.g. by using nozzles using steerable or laterally extendable nozzles
Traveling undercut solution mining systems and methods
#2Traveling undercut solution mining systems and methods
#3DEVICE FOR NON-ENTRY MINING
#4Horizontal Borehole Mining System and Method
#5Traveling undercut solution mining systems and methods