Coker unit drilling equipment

Device for cutting, drilling or similar working of rock, ore, co

Device for making a hole in the ground

Directional boring drill bit blade

Divergent fluid nozzle for drilling tool

Downhole jet unit for testing and completing wells

Fluid drilling head

Head for injecting a fluid under pressure to break up ground...

High pressure pipe and device for making a hole in the ground, p

Hole forming tool

Jet cutting device with deflector

Method of and apparatus for horizontal well drilling

Method of and apparatus for single plenum jet cutting

Negative pressure vortex nozzle

Nozzle insert for rotary rock bit

Pulsation nozzle, for self-excited oscillation of a drilling flu

Rotatable end deflector for abrasive water jet drill

System including a multi-stepped nozzle assembly for back-boring

Tool for excavating an object

Tool for excavating an object