LandOfFree - US Patents - Listing for Wells

Wells – Means for perforating – weakening – bending or separating pipe... – Cutter rotates circumferentially of pipe

Rotary downhole cutting tool

Wells – Processes – Cleaning or unloading well

Rotary drilling apparatus and method

Wells – Above ground apparatus – With seal for reciprocating member

Rotary drilling head

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

Rotary drive apparatus for downhold pump

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

Rotary drive assembly for downhole rotary pump

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

Rotary driven retrieval tool for horizontal directional...

Wells – Above ground apparatus – With seal for reciprocating member

Rotary fluid-sealing structure using speed-reduction stages

Wells – Processes – Assembling well part

Rotary locking system with metal seals

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

Rotary oil well pump and sucker rod lift

Wells – With below and above ground modification – Above ground actuating means for below ground device

Rotary piston well tool

Wells – Guide for device or conduit – Surrounding existing device or tubing

Rotary pump stabilizer

Wells – With below and above ground modification – Above ground actuating means for below ground device

Rotary running tool for rotary lock mandrel

Wells – Above ground apparatus – With seal for reciprocating member

Rotary stuffing box and seal assembly

Wells – Above ground apparatus – With tube rotating means

Rotary support table

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

Rotatable ball valve apparatus and method

Wells – Expansible anchor or casing – Liner hanger

Rotatable liner hanger

Wells – Expansible anchor or casing – Liner hanger

Rotatable liner hanger with multiple bearings and cones

Wells – Processes – Placing or shifting well part

Rotatable liner with multiple simultaneously set liner hanger ar

Wells – Conduit wall or specific conduit end structure – Downhole coupling or connector

Rotatable reciprocating collar for borehole casing