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| previous | kellyguard (en) - collezione «Ingegneria meccanica: Industria petrolifera» - Maria Cristina Basti | next |
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Ingegneria meccanica: Industria petrolifera
| English |
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| Noun |
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| A heavy-duty dart type check valve that is run on the drill pipe as a safety valve in the event of a kick, during tripping in and out of the well. |
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| CC88 |
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| All kellyguards are precision-bored by trepanning to provide true bores and are drifted to API specifications. When applicable, kellyguards are stamped with the API monogram. |
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| CC88 |
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| Petroleum Engineering |
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| lower kelly cock |
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| kellyguard |
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