VALVES FOR ACTUATING DOWNHOLE SHOCK TOOLS IN CONNECTION WITH CONCENTRIC DRIVE SYSTEMS

A system for generating pressure pulses in drilling fluid includes a concentric drive power section. The power section includes a stator and a rotor rotatably disposed in the stator. The rotor is coaxially aligned with the stator. The system also includes a valve. The valve includes a first valve me...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MARCHAND, NICHOLAS RYAN, CLAUSEN, JEFFERY RONALD, DONALD, SEAN MATTHEW
Format: Patent
Sprache:eng ; fre
Schlagworte:
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