LandOfFree - US Patents - Listing for Wells,Processes,Operating valve, closure, or changeable restrictor in a well

Wells – Processes – Operating valve – closure – or changeable restrictor in a well

Method and removable auxiliary apparatus for permanently locking

Wells – Processes – Operating valve – closure – or changeable restrictor in a well

Method and system for controlling a downhole flow control...

Wells – Processes – Operating valve – closure – or changeable restrictor in a well

Method for controlling a downhole tool with a linearly...

Wells – Processes – Operating valve – closure – or changeable restrictor in a well

Method for controlling fluid flow into an oil and/or gas...

Wells – Processes – Operating valve – closure – or changeable restrictor in a well

Method for reduction of control lines to operate a...

Wells – Processes – Operating valve – closure – or changeable restrictor in a well

Method for wellhead control

Wells – Processes – Operating valve – closure – or changeable restrictor in a well

Method of and device for production of hydrocarbons

Wells – Processes – Operating valve – closure – or changeable restrictor in a well

Method of controlling a subsurface safety valve

Wells – Processes – Operating valve – closure – or changeable restrictor in a well

Method of disabling and locking open a safety valve with...

Wells – Processes – Operating valve – closure – or changeable restrictor in a well

Methods and apparatus for negating mineral scale buildup in...

Wells – Processes – Operating valve – closure – or changeable restrictor in a well

Methods and apparatus for selectively controlling fluid communic

Wells – Processes – Operating valve – closure – or changeable restrictor in a well

Modular actuator system for valves and chokes

Wells – Processes – Operating valve – closure – or changeable restrictor in a well

Mounts for blowout preventer bonnets

Wells – Processes – Operating valve – closure – or changeable restrictor in a well

Mounts for blowout preventer bonnets

Wells – Processes – Operating valve – closure – or changeable restrictor in a well

Mounts for blowout preventer bonnets

Wells – Processes – Operating valve – closure – or changeable restrictor in a well

Mounts for blowout preventer bonnets

Wells – Processes – Operating valve – closure – or changeable restrictor in a well

Mud valve

Wells – Processes – Operating valve – closure – or changeable restrictor in a well

Multi zone isolation tool having fluid loss prevention...

Wells – Processes – Operating valve – closure – or changeable restrictor in a well

Multi-cycle dump valve