Patent ID: 11965402
Assignee: HALLIBURTON ENERGY SERVICES, INC.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. An electric submersible pump (ESP) assembly, comprising:
an electric motor having a first drive shaft;
a seal section having a second drive shaft, wherein the seal section is located uphole of the electric motor and a downhole end of the second drive shaft is coupled to an uphole end of the first drive shaft;
a fluid intake located uphole of the seal section, wherein the fluid intake defines a plurality of inlet ports;
a gas separator comprising a third drive shaft, a plurality of gas phase discharge ports, and at least one liquid phase discharge port, wherein the gas separator is located uphole of the fluid intake and a downhole end of the third drive shaft is coupled to an uphole end of the second drive shaft;
a centrifugal pump comprising a fourth drive shaft, a fluid inlet at a downhole end of the centrifugal pump, and a plurality of pump stages, wherein the centrifugal pump is located uphole of the gas separator, the at least one liquid phase discharge port of the gas separator is fluidically coupled to the fluid inlet of the centrifugal pump, and a downhole end of the fourth drive shaft is coupled to an uphole end of the third drive shaft; and
an inverted shroud assembly, wherein a downhole end of the inverted shroud assembly is coupled to an outside of the gas separator downhole of the gas phase discharge ports of the gas separator and uphole of the fluid intake.