Swivel cementing head with manifold assembly having remote...

Swivel chamber for water actuated wireline drills

Swivel connector

Swivel for core drilling

Swivel for use in conjunction with a downhole drilling motor...

Swivel mechanism

Swivel tanker floating storage system

Swivel unit

Swivelling device for a downhole rod pump

Swivelling device for a downhole rod pump

Synergistic microbicidal mixtures of 4-isothiazolin-3-ones...

System and apparatus for directing a survey of a well

System and apparatus for directing the drilling of a well

System and apparatus for extracting oil and the like from...

System and apparatus for sealing a fracturing head to a...

System and method for a failsafe control of a downhole valve...

System and method for accurate wellbore placement

System and method for actuating wellbore tools

System and method for automating exploration or production...

System and method for automating or metering fluid recovered...