LandOfFree - US Patents - Listing for Wells

Wells – Packers or plugs – With expanding anchor

Mandrel locking sleeve

Wells – Packers or plugs – With expanding anchor

Mandrel locking sleeve

Wells – Expansible anchor or casing – Expansible means translated by wedge or cam

Mandrel operated torque anchor

Wells – With below and above ground modification – Head for tool – piston or cleaner

Manifold arrangement for use with a top drive power unit

Wells – Processes – Placing or shifting well part

Manifold device and method of use for accessing a casing...

Wells – Processes – Assembling well part

Manipulatable spider components adapted for cooperation with...

Wells – Processes – Cementing – plugging or consolidating

Manual port closing tool for well cementing

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

Manual port closing tool for well cementing

Wells – Grapple and well anchored lifting means

Manually operated spear apparatus

Wells – Processes – Specific propping feature

Manufacture of strong, lightweight, hollow proppants

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

Mapping fracture dimensions

Wells – Receptacles – With valved or closed top

Marginal oil extraction device

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

Marine bottomed tensioned riser and method

Wells – Submerged well – Wellhead

Marine casing suspension apparatus

Wells – Submerged well – Riser

Marine conductor string provided with a connector and a connecto

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

Marine production riser system

Wells – Submerged well – Submerged – buoyant wellhead or riser

Marine riser

Wells – Submerged well – Riser

Marine riser

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

Marine riser