AXIAL POSITION-CONTROLLED OPERATION TOOLSTRING AND METHOD

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

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: TORVESTAD, Bjørn Tore, FAGNA, Jan-Ove, LØLAND, Atle, KROGSÆTER, Kurt Luis
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
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung: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 knives of the casing cutter tool are spaced out a predetermined initial distance below the dogs of the tag sub. The dogs are arranged for being collapsible by weight loading against the protrusion. A method includes using the toolstring.