Metal-to-metal annulus packoff

An all-metal, well annulus packoff assembly 10 for establishing a metal-to-metal seal between a wellhead housing 12 and a casing hanger 14, includes an annular metallic seal element 16 having a generally upstanding U-shaped cross section. An inner tubular portion 34 of the seal element 16 includes s...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	SHIVA PRASAD SINGEETHAM
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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