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

Failsafe safety valve and method

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

Flapper gas lift valve

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

Flow actuated valve for use in a wellbore

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

Flow control and isolation in a wellbore

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

Flow control apparatus

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

Flow control apparatus and method for use of the same

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

Flow control apparatus for use in a wellbore

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

Flow control apparatus for use in a wellbore

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

Flow control device

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

Flow control in a well bore

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

Flow control in multilateral wells

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

Flow control system having a downhole rotatable valve

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

Flow restriction device for use in producing wells

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

Flow switchable check valve and method

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

Flow-activated valve and method of use

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

Flow-biased sequencing valve

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

Fluid actuated circulating sub

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

Fluid connector with check valve and method of running a string

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

Fluid flow control apparatus, shifting tool and method for oil a