IPC Main Group
E21B 23/00 Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
Introduced: September 1968
Last revised: January 2006
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
EXTRACTING articles from boreholes
7 direct subcodes
Child Classifications
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- E21B 23/01 for anchoring the tools or the like
- E21B 23/02 for locking the tools or the like in landing nipples or in recesses between adjacent sections of tubing
- E21B 23/03 for setting the tools into, or removing the tools from, laterally offset landing nipples or pockets
- E21B 23/04 operated by fluid means, e.g. actuated by explosion
- E21B 23/06 for setting packers
- E21B 23/08 Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
- E21B 23/14 for displacing a cable or a cable-operated tool, e.g. for logging or perforating operations in deviated wells