HOLD DOWN APPARATUS FOR PROGRESSING CAVITY PUMP

A hold down apparatus is taught for a progressing cavity pump of the type having a stator, a helical rotor locatable in the stator and rotated by a string of rods, the pump being insertable in a bore of a tubing string by carriage on the rod string. The hold down apparatus includes a sub connected t...

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Bibliographische Detailangaben
Hauptverfasser:	HILL, DAVID A, ALDRIDGE, COLIN A
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING COLOUR PRINTING DECORATIVE ARTS EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS HEATING LIGHTING LINING MACHINES MECHANICAL ENGINEERING MINING MOSAICS OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PAPERHANGING PERFORMING OPERATIONS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES PRODUCING DECORATIVE EFFECTS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS SPECIAL DESIGNS OR PICTURES STAMPS TARSIA WORK TRANSPORTING TYPEWRITERS WEAPONS
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Beschreibung
Zusammenfassung:	A hold down apparatus is taught for a progressing cavity pump of the type having a stator, a helical rotor locatable in the stator and rotated by a string of rods, the pump being insertable in a bore of a tubing string by carriage on the rod string. The hold down apparatus includes a sub connected to a lower end of the tubing, the sub having a bore open to the bore of the tubing string and including a pump-engaging member; and a hold down member at the lower end of the stator for insertion into the sub, the hold down member having a bore therethrough with a tag bar extending thereacross and including a tubing-engaging member for engaging with the pump-engaging member of the sub and for abutting against the pump-engaging member hold the stator against rotation relative to the sub