REVERSE CIRCULATION HAMMER SPLINE ARRANGEMENT IMPROVEMENTS

REVERSE CIRCULATION HAMMER SPLINE ARRANGEMENT IMPROVEMENTS

A down-the-hole hammer drill that delivers fluid to a cutting face has particular application, but not limited, to a reverse-circulation (RC) down-hole face sampling hammer drill is tailored to the design of the cutting face to improve flushing of the cutting face. An associated drill bit and drive...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BEIERER PHILIPP, HILL RAYMOND
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A down-the-hole hammer drill that delivers fluid to a cutting face has particular application, but not limited, to a reverse-circulation (RC) down-hole face sampling hammer drill is tailored to the design of the cutting face to improve flushing of the cutting face. An associated drill bit and drive sub are also disclosed.