CENTRIFUGAL PUMP STAGE WITH RADIUSED IMPELLER FLOW PASSAGE EXIT FOR REDUCED EROSION

An electric submersible pump includes a shaft, a motor mechanically coupled to the shaft, and an impeller rotationally coupled to the shaft. The impeller includes a first hub and a first shroud. The first shroud is concentrically disposed about the first hub and has a first axial end and a second ax...

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Bibliographische Detailangaben
Hauptverfasser:	Brown, Donn J, Sheth, Ketankumar Kantilal, McManus, David
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS HEATING LIGHTING MECHANICAL ENGINEERING MINING NON-POSITIVE DISPLACEMENT PUMPS OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS
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Beschreibung
Zusammenfassung:	An electric submersible pump includes a shaft, a motor mechanically coupled to the shaft, and an impeller rotationally coupled to the shaft. The impeller includes a first hub and a first shroud. The first shroud is concentrically disposed about the first hub and has a first axial end and a second axial end. The second axial end is disposed radially outward with respect to the first axial end. A slope of an interior surface of the first shroud proximate the second axial end is within 20 degrees of being parallel to a longitudinal axis of the shaft. The impeller further includes first vanes extending from the first hub to the first shroud. The electric submersible pump further includes a diffuser fluidly coupled to the impeller. The diffuser includes a second hub, a second shroud concentrically disposed about the second hub, and second vanes extending from the second hub to the second shroud.