IPC Subgroup
E21B 15/02 specially adapted for underwater drilling
Introduced: September 1968
Last revised: January 2006
Full Title
Supports for the drilling machine, e.g. derricks or masts > specially adapted for underwater drilling
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
Scope Notes
Limiting references: Supports for the drilling machine specially adapted for directional drilling, e.g. slant hole rigs
Related Keywords
underwater DRILLINGSUBAQUEOUS deep drillingdeep-drilling UNDERWATER