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Ingegneria meccanica: Industria petrolifera
| English |
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| Noun |
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| Uncountable |
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| The space between two concentric cylinders such as between the drill string and the wellbore, the tubing and the casing, casing and the wellbore. |
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| Sh91 |
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| Drilling fluid is pumped down through the bit and then up the annulus, the area in the hole that is outside the drill pipe . |
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| Sh91 |
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| annular space |
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| Petroleum Engineering |
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| mud system |
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| annulus |
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