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

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

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

Formation fracturing and gravel packing tool

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

Formation isolation valve

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

Formation isolation valve

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

Formation isolation valve adapted for building a tool string of

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

Formation isolation valve and method of use

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

Formation protection valve apparatus and method

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

Formation saver sub and method

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

Frangible flapper valve with hydraulic impact sleeve and...