DOWNHOLE TRANSMISSION WITH WELLBORE FLUID FLOW PASSAGE

An electric submersible pump (ESP) assembly comprising an electric motor, a seal section disposed uphole of the electric motor, a gas separator disposed uphole of the seal section, a downhole transmission assembly disposed uphole of the gas separator, comprising a flow passage fluidically coupled to...

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Bibliographische Detailangaben
Hauptverfasser:	KOPECKY, Trevor Alan, SHETH, Ketankumar Kantilal, BROWN, Donn J
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 (ESP) assembly comprising an electric motor, a seal section disposed uphole of the electric motor, a gas separator disposed uphole of the seal section, a downhole transmission assembly disposed uphole of the gas separator, comprising a flow passage fluidically coupled to a liquid phase discharge port of the gas separator, a first drive shaft coupled to a drive shaft of the gas separator, a second drive shaft, and a transmission that mechanically couples the first drive shaft to the second drive shaft, wherein the transmission is configured to turn the second drive shaft at a slower angular speed than the angular speed of the first drive shaft, and a centrifugal pump assembly disposed uphole of the downhole transmission assembly, having a fluid inlet coupled to a fluid outlet of the downhole transmission assembly, and having a drive shaft coupled to the second drive shaft.