135896 ⎘
Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole by injecting into the borehole a liquid, either initially at high pressure or subsequently subjected to high pressure, e.g. by pulses, by explosive cartridges acting on the liquid
ENHANCED EXTRACTION SYSTEM AND METHOD BASED ON ULTRASONIC EXCITATION AND ACID FRACTURING INTEGRATED PERMEABILITY ENHANCEMENT FOR COAL SEAM
#2METHOD FOR CONSTRUCTING ARTIFICIAL WATER-CONDUCTING CHANNEL THROUGH PULSE HYDRAULIC FRACTURING OF DRAINAGE BOREHOLES IN ROOF AQUIFER
#3SYSTEM FOR IN SITU RESOURCE UTILIZATION IN EXTRATERRESTRIAL ENVIRONMENTS
#4METHOD AND DEVICE FOR PREVENTING RIB SPALLING IN HIGH-STRESS SURROUNDING ROCK BY HYDRAULIC SLOTTING
#5HYDRAULIC FRACTURING A ROCK MASS
#6Coal bump control method for sectional hydraulic fracturing regions of near vertical ultra thick coal seam
#7Transport of explosives
#8Drill-power-based directional hydraulic fracturing system for downhole quick slotting and method thereof
#9Water jet mining system and method
#10METHOD FOR OVER-PIT AND UNDER-PIT COOPERATIVE CONTROL OF ROOFS OF FAR AND NEAR FIELDS OF AN EXTRA-LARGE STOPING SPACE
#11Robot automated mining
#12Robot automated mining
#13Robot automated mining
#14Water jet mining system and method
#15Surface access borehole resource extraction method
#16HORIZONTALLY ROTATABLE MULTI-KNUCKLE BOOM
#17Rock breaking product
#18Tool and method for initiating hydraulic fracturing
#19Gas Generator For Splitting And Destructing Materials, Ignition Unit And Composition For Use In Gas Generators
#20Rock drill and method of breaking rock
#21Borehole sealing and improved foam properties for controlled foam injection (CFI) fragmentation of hard compact materials
#22Low-frequency pulsing sonic and hydraulic mining method
#23Low-frequency pulsing sonic and hydraulic mining system