ELECTRIC ANNULAR WITH ROTATIONAL GEAR DRIVEN PUSHER

Embodiments described herein provide a well valve assembly, comprising a housing; a component disposed within the housing, the component having a circular circumference and an opening for flowing well fluid through the component, the component having an outer wall with a circumferential thread on th...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	KROESEN, Gerrit, BOULANGER, Bruce
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS THERMAL INSULATION IN GENERAL WEAPONS
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