Hole enlargement drilling device and methods for using same

A bottomhole assembly (BHA) coupled to a drill string includes one or more controllers, and a hole enlargement device that selectively enlarges the diameter of the wellbore formed by the drill bit. The hole enlargement device includes an actuation unit that may move extendable cutting elements o the...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	TREVIRANUS JOACHIM, OPPELAAR HANS-ROBERT, HERBERG WOLFGANG EDUARD, MEISTER MATTHIAS, FREYER CARSTEN, BOTHMAN GUNNAR
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!