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Ingegneria meccanica: Industria petrolifera
| English |
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| Noun phrase |
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| Countable |
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| A hanger-like device that is made of an U-shaped, solid cylindrical steel bar and is suspended form the ears of a travelling block on a drilling rig. It is designed to provide working distance between the travelling block and the elevators that are used to grip and lift or lower tubular goods in the well. |
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| Sh91 |
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| When coming out of the hole with the conventional drillpipe elevator system, the drill collars must be removed either with a lifting sub or with a second elevator that utilises a groove in the drill collar. To use D-C LIFT, however, it is usually necessary to remove the regular drillpipe elevator from the links. |
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| CC88 |
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| Mechanics |
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| auxiliary equipment |
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| anelloni |
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| 3 |
