Selvtettende, ekspanderende, oppblasbare tetningsstykker

The present invention generally relates to a sealing apparatus (50) for isolating a wellbore. In one aspect, the present invention provides an expandable sealing apparatus having an expandable tubular (48) and a sealing element (120) disposed around the tubular. A chamber (125) for maintaining a flu...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	OLIVER JAMES, WHANGER JAMES K
Format:	Patent
Sprache:	nor
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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