Apparatus for rock drilling

Apparatus for rotating a tubing string of a pumping wellhead

Apparatus for running two tubing strings into a well

Apparatus for sampling drill hole cuttings

Apparatus for separating components in well fluids

Apparatus for separating solids from liquids

Apparatus for setting a liner in a well casing

Apparatus for signalling within a borehole while drilling

Apparatus for signalling within a borehole while drilling

Apparatus for slant drilling

Apparatus for slotting and cutting pipe

Apparatus for storing and moving a drill pipe to a position...

Apparatus for storing drill rods

Apparatus for stripping fluid from well pipe

Apparatus for supporting a direct drive drilling unit in a...

Apparatus for testing an oil well, and corresponding method

Apparatus for testing and monitoring landfills

Apparatus for testing drill stems

Apparatus for testing earth formations

Apparatus for testing earth formations