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Windup
| Diamond Glossary (алмазы и бриллианты - глоссарий терминологии) |
The amount of twist occurring in a string of drill rods when the string is rotated during drilling. there can be as many as several com¬plete revolutions of the rod at the collar before the bottom member of the string begins to rotate. also called wrapup.
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Revolutions, английский
[rotation] per minute оборотов в минуту
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Hole curvature, английский
The amount, expressed in degrees, that a borehole has diverged from its intended course in a distance of 100 feet.
Jacking pressure, английский
The amount of pressure exerted by a jack to force a cone penetrometer into a soil being tested.
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