METHOD OF REMOVING A DOWNHOLE CASING

Method and apparatus for removing a downhole casing from a well on a single trip. A downhole tool assembly is arranged on a work string having a downhole pull tool, a spear tool, motor unit and cutting device. The downhole pull tool is set inside a first casing string and the spear tool, motor unit...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Hansen, Steffen, Sunde, Frode, Rooyakkers, Edwin, Wathne, Arnstein, Enerstvedt, Eirik, Evertsen, Steffen
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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