Radially moving slips

Radially moving slips

Reeled well tubing systems

Releasable air vent pipe for use on water well covers

Remote control fracture valve

Remotely accessible mobile repair unit for wells

Remotely controlled assembly for wellbore flow diverter

Remotely operated coupling and well devices employing same

Removable seal

Removable surface pack-off device for reverse cementing...

Retrievable sealing plug and method of making same

Retrieval tool for back pressure valve and tree test plug

Retrivevable frac mandrel and well control stack to...

Rod coupling breakout device

Rod guide bearing assembly for oil well pumping apparatus

Rod pump stuffing box

Roller for use in a spinner apparatus

Roller guide for oil-well pump

Rotary blowout preventer adaptable for use with both kelly and o

Rotary blowout preventer adaptable for use with both kelly and o