Mining machinery

Movable joint bent sub

Near bit offset stabilizer

Orientatable adjustable bent housing

Orientatable adjustable bent sub

Regulator of angle and reactive moment of a gerotor type...

Remote controlled actuation device

Rotary steerable drilling tool

Steerable directional drilling tool

Steerable horizontal subterranean drill bit

Steerable horizontal subterranean drill bit having a one...

Steerable horizontal subterranean drill bit having an offset...

Steerable horizontal subterranean drill bit having elevated...

Steerable horizontal subterranean drill bit having offset...

Steerable tool underreaming system

Surface adjustable adjustable bent housing

Surface control bent sub for directional drilling of petroleum w

Tool for drilling curved sections of well holes

Underground boring apparatus with controlled steering capabiliti

Well drilling tool