An apparatus for facilitating the connection of tubulars...

An apparatus for facilitating the connection of tubulars...

An apparatus for forming an underground tunnel

An apparatus for magnetically treating flowing fluids

An apparatus for measuring an internal dimension of a well-bore

An apparatus for retaining two strings of tubulars

An apparatus for retrieving metal debris from a well bore

An apparatus for running tubulars into a borehole

An apparatus, a system and a method for washing a tubular in...

An apparatus, system, and method for detecting and...

An aqueous and petroleum gel method for preventing water-influx

An arrangement and method for deploying downhole tools

An arrangement for affixing an expandable packer in a hole

An arrangement for drilling slots

An arrangement in a feed beam of a rock drill

An assembly and method for discharging fluid into a drill...

An assembly and method for forming a seal in junction of a...

An automatic control system and method for bottom hole...

An axle, a friction reducing fitting and an axle...

An elongate element tensioning member