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Drift angle buildup
| Diamond Glossary (алмазы и бриллианты - глоссарий терминологии) |
The rate of the increase in the drift angle which is generally expressed as the num¬ber of degrees increase for a specific drilled footage. example, 2° per 100 feet.
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Slip velocity, английский
The rate, expressed in feet per minute, at which a given size and shape of rock particle will descend or settle in water, example: the slip ve- 82
Upward velocity, английский
The rate at which drilling fluid pro¬gresses up the borehole. compare up-hole velocity.
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