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Ingegneria meccanica: Industria petrolifera
| English |
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| Noun |
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| Countable |
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| A sub used to enlarge and undergauge well to gauge, ream out ledges and split casing, remove key seats, and straighten a well. It has cutting blades, rollers, or cones of tungsten carbide on it and is run down the well on a drillstring. |
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| Mdo91 |
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| Griffith standard three point roller reamers are of heavy duty design utilising drive fit hardened reamer pin blocks which can be easily field replaced by rig crews. |
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| CC88 |
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| Petroleum Engineering |
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| drill stem |
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| alesatore |
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