LandOfFree - US Patents - Listing for Wells

Wells – Processes – Placing or shifting well part

Flapper opening mechanism

Wells – Processes – With indicating – testing – measuring or locating

Flapper type annulus pressure responsive tubing tester valve

Wells – Valves – closures or changeable restrictors – Longitudinally movable operator

Flapper type safety valve for subterranean wells

Wells – Valves – closures or changeable restrictors – Longitudinally movable operator

Flapper type safety valve for subterranean wells

Wells – Valves – closures or changeable restrictors – Fluid operated

Flapper valve

Wells – Valves – closures or changeable restrictors – Fluid operated

Flapper valve

Wells – Processes – Placing or shifting well part

Flapper valve and associated method for single trip...

Wells – Processes – Placing or shifting well part

Flapper valve assembly apparatus and method

Wells – Valves – closures or changeable restrictors – Longitudinally movable operator

Flapper valve assembly with floating hinge

Wells – Valves – closures or changeable restrictors – Fluid operated

Flapper valve protection

Wells – Valves – closures or changeable restrictors – Longitudinally movable operator

Flapper valve with biasing flapper closure assembly

Wells – Means for guiding insertable element laterally of well axis

Flapper-type subsurface safety valve

Wells – Processes – Assembling well part

Flash welding process for field joining of tubulars for...

Wells – Submerged well – Means removably connected to permanent well structure

Flex joint

Wells – With electrical means

Flex joint incorporating enclosed conductors

Wells – Processes – Sampling well fluid

Flexible borehole liner with diffusion barrier and method of...

Wells – Above ground apparatus – Moving tubing or cable into an existing well

Flexible conduit injection system

Wells – Submerged well – Riser

Flexible connection apparatus

Wells – Processes – Cementing – plugging or consolidating

Flexible contaminant-resistant grout composition and method