DOWNHOLE SCREW MOTOR GEARED-ROTOR MECHANISM

oil gas industries; well drilling. SUBSTANCE: invention can be used also in screw pumps for recovery of oil and transfer of liquids. Geared-rotor mechanism of downhole screw motor has stator with internal helical teeth made of elastic material and rotor with external helical teeth whose number is le...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	KOCHNEV A.M, BOBROV M.G, SUSLOV V.F, KOROTAEV JU.A, TSEPKOV A.V
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINE PLANTS IN GENERAL FIXED CONSTRUCTIONS HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES STEAM ENGINES WEAPONS
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