System og fremgangsmåte for sikker frakopling fra en undersjöisk brönn

System og fremgangsmåte for sikker frakopling fra en undersjöisk brönn

A system for controlled separation of a conduit 20 into an upper portion 20a and a lower portion 20b, wherein at least a length of the conduit is residing in a tubular member of a well, the system comprising: a separation joint 28 at which the conduit is separated into the upper portion and the lowe...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WENDLER, CURTIS E, NIVENS, HAROLD WAYNE
Format: Patent
Sprache:nor
Schlagworte:
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:A system for controlled separation of a conduit 20 into an upper portion 20a and a lower portion 20b, wherein at least a length of the conduit is residing in a tubular member of a well, the system comprising: a separation joint 28 at which the conduit is separated into the upper portion and the lower portion; a valve 34 in the lower portion of the conduit operable to prevent fluid flow through the lower portion of the conduit; and a well engaging member 32 in the lower portion of the conduit actuable to engage an interior surface of the tubular member and axially support the lower portion of the conduit at a location independent of a profile of the interior surface.