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

System and method for selectively communicatable hydraulic...

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

System and method to control multiple tools through one...

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

System for controlling a hydraulic actuator, and methods of...

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

Temporary lock-open tool for subterranean well valve

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

Tester valve with silicone liquid spring

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

Tester valve with silicone liquid spring

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

Thermally stable diamond cutting elements in roller cone...

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

Thermally-controlled valves and methods of using the same in...

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

Tool for closing a well tubing

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

Tool string

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

Tubing drain valve

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

Tubing drain valve useful with heavy, sand-bearing oil

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

Underbalanced well completion

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

Valve and sensing device for well conduits

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

Valve apparatus for controlling communication between the interi

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

Valve apparatus for use in sand control

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

Valve for an internal fill up tool and associated method

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

Valve for use in wells

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

Valve within a control line