Linear electric motor for downhole use
Motor drive actuator for downhole flow control devices
Plug or lock for use in oil field tubular members and an operati
Sealed ESP motor system
Self-propelled apparatus
Solenoid actuated well safety valve
Solenoid actuator and pulse drive
Solenoid operated blanking block valve
Submersible pump adapter
Submersible pump line protector
Subsurface device actuator requiring minimum power
Subsurface tubing safety valve
Swivel and eccentric weight to orient a roller sub
Thrust section wear preventor
Thrust section wear preventor
Well installation in which electrical current is supplied for a
Wellbore motor having magnetic gear drive