Brønnproduksjonsrørventil og fremgangsmåte for styring av fluidstrøm

A well tubing valve including a substantially tubular body connected in a tubular string and a rotational valve member having at least one aperture. The valve member is a sleeve having a part spherical surface, is rotationally moveable relative to the body to align and misalign the at least one aper...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Brown, Irvine Cardno, Reid, Michael Adam
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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