WELL TOOLS UTILIZING SWELLABLE MATERIALS ACTIVATED ON DEMAND

A well tool includes a generally tubular mandrel with a flow passage extending longitudinally through the mandrel, and a flow controller which initially prevents a fluid from contacting a swellable material, but which permits the fluid to contact the material in response to manipulation of pressure...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SEVRE, Alf, K, SOLHAUG, Kristian, KALMAN, Mark, D
Format:	Patent
Sprache:	eng ; fre ; ger
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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