Expandable reamer apparatus for enlarging boreholes while drilling and methods of use

An expandable reamer apparatus and methods for reaming a borehole, wherein a laterally movable blade carried by a tubular body may be selectively positioned at an inward position and an expanded position. The laterally movable blade, held inwardly by blade-biasing elements, may be forced outwardly b...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Radford, Steven R, Ireland, Kelly D, Gautam, Anurag, Laing, Robert A, Mumma, Matthew D, Pritchard, Daryl L
Format:	Patent
Sprache:	eng
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!