LandOfFree - US Patents - Listing for Wells

Wells – Brushing – scraping – cutting or punching-type cleaners – Reciprocable relative to central member extending from well top

Reamer

Wells – Submerged well – Testing

Rechargeable hydraulic power source for actuating downhole tool

Wells – Processes – Assembling well part

Reciprocating lubricator

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

Reciprocating pump dump valve and methods of use

Wells – Valves – closures or changeable restrictors – Destructible element

Reciprocating pump vent-dump valve and methods of use

Wells – With eduction pump or plunger – With leak means

Reciprocating pump with partial flow reversal

Wells – Screens – Porous material

Reciprocating rod type downhole pump

Wells – Processes – Placing or shifting well part

Reciprocating running tool

Wells – Processes – Placing or shifting well part

Reciprocating slickline pump

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

Reciprocating water well pump

Wells – Processes – Disassembling well part

Recirculatable ball-drop release device for lateral oilwell...

Wells – Processes – Separating material entering well

Recirculating gas separator for electric submersible pumps

Wells – Processes – Heating – cooling or insulating

Recirculating pump for electrical submersible pump system

Wells – Processes – Producing the well

Recirculation gas separator

Wells – Processes – Producing the well

Recirculation gas separator

Wells – Valves – closures or changeable restrictors – Fluid operated

Reclosable circulating valve for well completion systems

Wells – Processes – Sampling well fluid

Reclosable circulation valve for use in oil well testing

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

Recloseable auxiliary valve

Wells – Processes – Cyclic injection then production of a single well

Recovering hydrocarbons from tar sand or heavy oil reservoirs