Devices for placing or drawing out wear protectors

Introduced: September 1968

Last revised: January 2006

Full Title

Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings > Wear protectors; Centralising devices > Devices for placing or drawing out wear protectors

Classification Context

Section:: FIXED CONSTRUCTIONS
Class:: EARTH OR ROCK DRILLING; MINING
Subclass:: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS

Related Keywords

ASSEMBLING of wear protectors to drill pipes, sucker rods, etc.