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SYSTEM FOR UNSTICKING PIPES OF A DRILL STRING OF A DRILLING APPARATUS
SYSTEM FOR UNSTICKING PIPES OF A DRILL STRING OF A DRILLING APPARATUS
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机译:用于钻孔装置的钻柱的不显着管道的系统
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摘要
An unstuck system of stuck drill pipes of a drill string of a drilling apparatus adapted to drilled wells to extract fluids or mud includes a torsion coupling system adapted to disconnect an upper portion from a bottom portion including the stuck drill pipes of the drill string and to transfer a rotation to the unstuck system. The unstuck system includes at least an axial forced vibration generator including at least one axially movable element adapted to generate at least a vibration which is propagated to pipes of a portion free from being stuck, where the induced vibrations fall within a band of induced frequencies near or corresponding to a resonance frequency of the portion free from being stuck.
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