EXTRUSION BALL ACTUATED TELESCOPING LOCK MECHANISM

An assembly and a method of performing an operation in a borehole. The assembly includes a plug, and a retrieving head rigidly coupled to the plug in a locked configuration. The retrieving head includes a lock disposed therein comprising a housing, a mandrel, and a ball seat. The ball seat is secure...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CULLUM, Jason, SOSA, Andres
Format:	Patent
Sprache:	eng
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:	An assembly and a method of performing an operation in a borehole. The assembly includes a plug, and a retrieving head rigidly coupled to the plug in a locked configuration. The retrieving head includes a lock disposed therein comprising a housing, a mandrel, and a ball seat. The ball seat is secured to the housing at a first seat location when the assembly is in the locked configuration. The assembly is conveyed assembly in the borehole. A ball is dropped through the assembly to seat at the ball seat. A fluid pressure created at the ball moves the ball seat to a second seat location within the housing to place the assembly in an unlocked configuration. The mandrel is shifted to allow the retrieving head to move axially in the unlocked configuration.