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core barrel
NOUN
1.
(in a core drill) a length of pipe for holding rock cores while they are being extracted from the drill hole.
Source: Dictionary.com
core barrel | Define core barrel at Dictionary.com
dictionary.reference.com/browse/core barrel
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www.merriam-webster.com/dictionary/core%20barrel

Define core barrel: a tube inside a drill pipe and supported by a bit to receive the ... are looking for one that's only in the Merriam-Webster Unabridged Dictionary.

www.dictionary.com/browse/core-barrel

Core barrel definition, (in a core drill) a length of pipe for holding rock cores while they are being extracted from the drill hole. See more.

www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/core-barrel

Definition of core barrel – Our online dictionary has core barrel information from A Dictionary of Earth Sciences dictionary. Encyclopedia.com: English ...

www.thefreedictionary.com/core

Define core. core synonyms, core pronunciation, core translation, English ... of rock, ice, or other material obtained from the center of a mass by drilling or cutting .

www.glossary.oilfield.slb.com/Terms/c/core.aspx

To deepen the wellbore by way of collecting a cylindrical sample of rock. A core bit is used to accomplish this, in conjunction with a core barrel and core catcher.

www.collinsdictionary.com/us/dictionary/english/coring

Coring entails taking core samples from the well and examining the presence of oil or gas.Coring involves drilling with a donut-shaped bit that allows a ...

www.learnersdictionary.com/definition/barrel

Definition of barrel written for English Language Learners from the Merriam- Webster Learner's Dictionary with audio pronunciations, usage examples, and ...

dictionary.cambridge.org/dictionary/english/core

core meaning, definition, what is core: the basic and most important part of something: . Learn more.

en.oxforddictionaries.com/definition/core

the tough central part of various fruits, containing the ... Meaning, pronunciation, example sentences, and more from Oxford Dictionaries.