(petroleum engineering) A series of links in the drill string to connect drill cables to the drill bit; sets up the uneven motion on the upstroke that helps free the string of tools. Also known as jar coupling.
jars
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(järz)
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 | Plain of Jarres |
| olla (in archaeology) |
| storage jars (in archaeology) |
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 | Sci-Tech Dictionary. McGraw-Hill Dictionary of Scientific and Technical Terms. Copyright © 2003, 1994, 1989, 1984, 1978, 1976, 1974 by McGraw-Hill Companies, Inc. All rights reserved. Read more |
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Mentioned in
- Plain of Jarres
- olla (in archaeology)
- storage jars (in archaeology)
- Four Sons of Horus (in archaeology)
- bottle house
- sinker bar (mining engineering)
- Plain of Jars (region, Laos)
- honey jar (in archaeology)
- cooking pot (in archaeology)
- bead rim (in archaeology)
- mixiria
- white foots
- biscuit cutter (mining engineering)
- sealing wax
