Laser wellbore completion apparatus and method
Method and apparatus for laser treatment of geological formation
Method and apparatus for perforating oil and gas wells
Method for laser drilling subterranean earth formations
Method for making holes and producing gas in coal seams
Method of electrothermomechanical drilling and device for its im
Methods for coring a masonry wall
Plasma channel drilling process
Pressure pulse fracturing system
Process and a device for establishing drilling holes
Profile melting-drill process and device
Pulsed electric rock drilling apparatus
Rock melting excavation process
Rock melting tool with annealer section
System for rapidly boring through materials
Thermal drilling device
Thermal drilling device
Thermochemical penetrator for ice and frozen soils
Well perforating apparatus and method