LandOfFree - US Patents - Listing for Wells

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

Back pressure plug tool

Wells – Processes – With explosion or breaking container to implode

Back-off apparatus and method for retrieving pipe from wells

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

Back-off tool

Wells – Packers or plugs – With expanding anchor

Backflow prevention device

Wells – Processes – Cleaning or unloading well

Backflush filter system for downhole pumps

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

Backoff sub and method for remotely backing off a target joint

Wells – Processes – Disassembling well part

Backpressure adapter pin and methods of use

Wells – Above ground apparatus – With assembly or disassembly means

Backpressure adaptor pin and methods of use

Wells – Packers or plugs – With controllable bypass outside central conduit

Backsurge well cleaning tool

Wells – Packers or plugs – Central support has shoulders expanding sealing portion – or...

Backup shoe for well packer

Wells – Above ground apparatus – Treatment of produced fluids

Backwash oil and gas production

Wells – Processes – Using microorganisms

Bacteria and its use in a microbial profile modification process

Wells – Processes – Using microorganisms

Bacteriogenic mineral plugging

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

Baffle system for conducting well treating operations

Wells – Processes – Separating material entering well

Baffle system for two-phase annular flow

Wells – Processes – Sampling well fluid

Bailer discharging device and method of using thereof

Wells – Valves – closures or changeable restrictors – Fluid operated

Balance line hydraulically operated well safety valve

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

Balance line safety valve with tubing pressure assist

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

Balance line safety valve with tubing pressure assist