LOCKDOWN MECHANISM FOR WELLHEAD CONNECTOR

A connector for subsea wellhead bodies comprises a connector body adapted to be connected to a subsea wellhead body in generally coaxial alignment therewith. Latches carried by the connector body are engageable with the wellhead body to so connect the bodies. An actuator is operatively associated wi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	NORMAN ALLEN NELSON
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A connector for subsea wellhead bodies comprises a connector body adapted to be connected to a subsea wellhead body in generally coaxial alignment therewith. Latches carried by the connector body are engageable with the wellhead body to so connect the bodies. An actuator is operatively associated with the latches and longitudinally extendible for extending the latches into such engagement with the wellhead body. A lock assembly is provided for selectively locking the actuator in its longitudinally extended position. The lock assembly comprises inner and outer lock portions, the outer portion telescopically receiving the inner portion with a tight interference fit. The lock portions are oriented generally parallel to the path of movement of the actuator. One of the lock portions is connected to the connector body, while the other is connected to the actuator. Means are provided for selectively introducing pressurized fluid between the inner and outer lock members to forcibly radially separate them and allow relative telescopic movement therebetween.