LandOfFree - US Patents - Listing for Wells

Wells – Processes – Distinct – separate injection and producing wells

Sacrificial agents for petroleum recovery processes

Wells – Processes – Placing or shifting well part

Safeguarded method and apparatus for fluid communiction using co

Wells – Submerged well – Connection or disconnection of submerged members remotely...

Safety apparatus for automatically sealing hydraulic lines withi

Wells – Submerged well – Connection or disconnection of submerged members remotely...

Safety apparatus for automatically sealing hydraulic lines withi

Wells – Processes – Perforating – weakening – bending or separating pipe at an...

Safety apparatus for perforating system

Wells – Processes – Cementing – plugging or consolidating

Safety cement plug launch system

Wells – Guide for device or conduit – On sucker or pump rod

Safety centering basket

Wells – Processes – Assembling well part

Safety check valve for coiled tubing

Wells – With eduction pump or plunger

Safety clamp for walking beam compressor

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

Safety coupling for rotary down hole pump

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

Safety coupling for rotary pump

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

Safety disc brake assembly

Wells – Valves – closures or changeable restrictors – Fluid operated

Safety gate valve for petroleum wells, permitting operation by a

Wells – Submerged well – Connection or disconnection of submerged members remotely...

Safety installation for a submerged drilling well-head

Wells – Submerged well – With safety or emergency shutoff

Safety joint

Wells – Processes – Freeing stuck object – grappling or fishing in well

Safety joint

Wells – Above ground apparatus – With means facilitating connecting or disconnecting...

Safety lock for elevators

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

Safety mechanism for weight-set downhole tool

Wells – Packers or plugs – Controllable passage through packer

Safety plug for sealing-off the tubing of a producing oil or gas