DOWNHOLE RELEASE JOINT WITH RADIALLY EXPANDABLE MEMBER

A downhole releasable tubular connection includes a joint between two tubing strings, wherein one of the two tubing strings is radially expanded and plastically deformed by an expansion device. When the expansion device is moved adjacent to the joint, a threaded connection mechanism in the joint rea...

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Bibliographische Detailangaben
Hauptverfasser:	BENNETT, FREDERICK C, CHOWDHARY, HARSH V, BUTTERFIELD, CHARLES A, WHIDDON, RICHARD M
Format:	Patent
Sprache:	eng ; fre
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 downhole releasable tubular connection includes a joint between two tubing strings, wherein one of the two tubing strings is radially expanded and plastically deformed by an expansion device. When the expansion device is moved adjacent to the joint, a threaded connection mechanism in the joint reacts to the radially outward forces of the expansion device and releasably expands, thereby decoupling the tubing strings. La présente invention a trait à un raccord tubulaire amovible de fond qui inclut un joint entre deux colonnes de production, l'une des deux colonnes de production s'étendant radialement et étant plastiquement déformée par une vanne de détente. Lorsque la vanne de détente est déplacée de façon adjacente au joint, un mécanisme de raccord fileté dans le joint réagit aux forces extérieures radiales de la vanne de détente et s'étend de façon amovible, ce qui permet de la sorte de découpler les colonnes de production.