May also be called a jet basket: a device with nozzles and a basket or catch basin to catch smaller pieces of junk stirred up by circulation.

A rig with a folding mast that can be lowered and raised relatively quickly.

See bit nozzle.

A single length (30 feet or 9 meters) of drill pipe, drill collar, casing, or tubing that has threaded connections at both ends.

Several joints screwed together constitute a stand of pipe.

A device used to support the end of a length of pipe while another length is being screwed on

A jackup drilling rig.

A mobile bottom-supported offshore drilling structure with columnar or open-truss legs that support the deck and hull.

When positioned over the drilling site, the bottoms of the legs rest on the seafloor.

A jackup rig is towed or propelled to a location w