Method of creating a safe environment in salt mining
Method of creating an underground batch retort complex
Method of cutting and cutting rotative bit
Method of detonating explosives for fragmenting oil shale format
Method of disposing solid sodium chloride while selectively solu
Method of downhole hydraulicking mineral resources
Method of downhole hydraulicking of mineral resources
Method of electric smelting to matte in situ
Method of electro-hydraulic control of longwall mine units
Method of enhancing recovery of oil from pillars adjacent in sit
Method of enhancing the removal of methane gas and associated fl
Method of excavating overburden in surface mining operations
Method of excavating rock caverns by blasting
Method of excavation and apparatus therefor
Method of explosive fracturing of a formation at depth
Method of extraction of nodular sediments or the like from the s
Method of forming a rubblized in-situ retort
Method of forming an in situ oil shale retort
Method of forming an in situ oil shale retort in formation with
Method of forming an in situ oil shale retort with void volume a