LandOfFree - US Patents - Listing for Wells

Wells – Valves – closures or changeable restrictors – Fluid operated

Fail safe gas bias safety valve

Wells – With electrical means – Valve

Fail safe surface controlled subsurface safety valve for use...

Wells – Means for guiding insertable element laterally of well axis – Secured in operative position by movable means engaging well...

Fail-safe coupling for a latch assembly

Wells – Processes – Graveling or filter forming

Fail-safe one trip perforating and gravel pack system

Wells – With electrical means

Fail-safe safety cut-off valve for a fluid well

Wells – With electrical means

Fail-safe safety cut-off valve for a fluid well

Wells – With below and above ground modification – Eduction pump or plunger in well

Fail-safe subsea fluid transportation system

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

Fail-safe well safety valve and method

Wells – Valves – closures or changeable restrictors – Fluid operated

Failsafe control system for a subsurface safety valve

Wells – Valves – closures or changeable restrictors – Fluid operated

Failsafe gas closed safety valve

Wells – Processes – Placing or shifting well part

Failsafe liner installation assembly and method

Wells – Processes – Placing or shifting well part

Failsafe liner installation assembly and method

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

Failsafe safety valve and method

Wells – Processes – Distinct – separate injection and producing wells

Fatty acid additives for surfactant foaming agents

Wells – Processes – Distinct – separate injection and producing wells

Fatty acid salts as steam foaming agents

Wells – Above ground apparatus – With means for injecting solid or particulate material into...

Feed apparatus for feeding capsular cartridges into drilled...

Wells – Processes – Chemical inter-reaction of two or more introduced materials

Fiber laden energized fluids and methods of use

Wells – Processes – Chemical inter-reaction of two or more introduced materials

Fiber laden energized fluids and methods of use thereof

Wells – Processes – Placing or shifting well part

Fiber optic deployment apparatus and method