Axial position-controlled operation toolstring and method

An axial position-controlled operation toolstring for conducting an axial position-controlled operation in a well includes from below and up: a casing cutter tool including knives; a tag sub with dogs arranged for landing on a protrusion in said well; a pipe spear; and a drill pipe string. The knive...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Fagna, Jan-Ove, Krogsæter, Kurt Luis, Torvestad, Bjørn Tore, Løland, Atle
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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