APPARATUS AND METHODS UTILIZING PROGRESSIVE CAVITY MOTORS AND PUMPS WITH INDEPENDENT STAGES

In one aspect, a drilling apparatus is disclosed, that includes a progressive cavity device that includes a plurality of linearly coupled rotors, each rotor disposed in a separate stator, wherein adjoining stators are separated by a coupling device configured to provide lateral support to the rotors...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KLOTZER, SUNDAIE, TAYLOR, KYLE L
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS HEATING LIGHTING MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS
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Beschreibung
Zusammenfassung:	In one aspect, a drilling apparatus is disclosed, that includes a progressive cavity device that includes a plurality of linearly coupled rotors, each rotor disposed in a separate stator, wherein adjoining stators are separated by a coupling device configured to provide lateral support to the rotors. In another aspect, the stators may be enclosed in a common housing. In yet another aspect, the adjoining stator sections may be rigidly connected to each other. Selon un aspect, cette invention concerne un appareil de forage comprenant un dispositif à vis excentrée qui comprend une pluralité de rotors à accouplement linéaire, chaque rotor étant disposé dans un stator distinct. Les stators attenants sont séparés par un dispositif d'accouplement conçu pour fournir aux rotors un support latéral. Selon un autre aspect de l'invention, les stators peuvent être accueillis dans un boîtier commun. Enfin, les sections de stator attenantes peuvent être reliées par accouplement rigide.