LandOfFree - US Patents - Listing for Wells,With below and above ground modification,Head for tool, piston or cleaner

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

Apparatus for dropping articles downhole

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

Apparatus for injecting displacement plugs

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

Apparatus for releasing a cementing plug

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

Ball catcher

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

Ball valve type injector and catcher apparatus with adjustable f

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

Bottom valve tripping and liquid channeling device for an automa

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

Cementing head

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

Cementing plug container with remote control system

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

Cementing system

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

Geothermal well head and actuator assembly

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

Hydraulic wiper plug launcher

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

Launching tool for objects downhole

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

Lift through plug container for slant rig

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

Lift-through head and swivel

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

Lifting top drive cement head

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

Lifting top drive remote control cement head

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

Lubricator

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

Lubricator corrosion inhibitor treatment

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

Lubricator for underbalanced drilling