公开(公告)号：WO2018170002A1

公开(公告)日：2018-09-20

申请号：PCT/US2018/022242

申请日：2018-03-13

Applicant: HALLIBURTON ENERGY SERVICES, INC.

Inventor： BROWN, Donn J. ,  ROBERTS, Randy S. ,  GOTTSCHALK, Thomas John

IPC: F04D7/04 ,  F04D13/08 ,  F04D13/10 ,  E21B43/38

CPC classification number: E21B43/38 ,  E21B43/128 ,  F04D7/04 ,  F04D9/003 ,  F04D13/08 ,  F04D13/10

Abstract: An electric submersible pump (ESP) gas separator is described. An ESP gas separator includes a propeller upstream of a fluid entrance to a crossover, the crossover including a production pathway and a vent pathway, and the propeller including a plurality of blades comprising washout twist, wherein gas rich fluid of multi-phase fluid traveling through the gas separator flows through the propeller and into the vent pathway, and gas poor fluid of the multi- phase fluid flows around the propeller and then through the production pathway. An ESP assembly includes a gas separator between a centrifugal pump and an induction motor, the gas separator serving as an intake for fluid into the centrifugal pump and including a propeller in a separation chamber, the propeller comprising a plurality of blades, each blade having a pitch that increases in coarseness from a hub towards a shroud of the propeller.