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Device and procedure for the insertion of a new drilling string-element into the drill-string of a well
Device and procedure for the insertion of a new drilling string-element into the drill-string of a well
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机译:用于将新的钻柱元件插入井的钻柱的装置和程序
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摘要
A device and the relative are described, for the insertion of a new drilling string-element into a drilling-string essentially including a short pipe-shaped body (C) having, at opposite ends thereof, a device suitable for screwing the body onto drill pipes, in which two valves are housed, of which one valve (A) is radial to said short body, interceptable from the outside by means an adaptor and equipped with a suitable safety plug, the other valve (B) being axial with respect to the body.
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