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

Hydraulically operated fluid metering apparatus for use in a...

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

Hydraulically operated formation isolation valve for...

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

In-flow control device utilizing a water sensitive media

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

Infinitely variable control valve apparatus and method

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

Inflatable flow control device and method

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

Inflatable shifting tool

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

Injection valve and method

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

Injection valve and method

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

Insert gas lift system

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

Interchangeable choke assembly

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

Internal pressure operated circulating valve with annulus...

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

Interventionless oil tool actuator with floating piston and...

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

Isolation valve

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

Linear actuation system in the form of a ring

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

Lock open and control system access apparatus and method for...

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

Low power miniature hydraulic actuator

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

Low pressure responsive downhole tool

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

Low pressure responsive downhole tool with cam actuated relief v

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

Low pressure responsive downhole tool with differential pressure