Ringrom-isolasjonsventil og brønnhodesammenstilling

An annulus isolation valve comprises a valve actuation bore and a flow passage capable of providing fluid communication between an upper annulus and a lower annulus. The flow passage comprises a first flow path and a portion of the valve actuation bore. Further, the first flow path has a second long...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Russell, Casey, Paulo, Paulo Cezar Silva, Li, Charles, Newlands, Nick, Dyson, Andy, Mogedal, Øystein
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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