US2026055771A1PendingUtilityA1

Pumping arrangement in an electrical submersible pump

Assignee: BURLEIGH LAWRENCEPriority: Aug 22, 2022Filed: Aug 22, 2023Published: Feb 26, 2026

Est. expiryAug 22, 2042(~16.1 yrs left)· nominal 20-yr term from priority

Inventors:BURLEIGH LAWRENCE

F04D 29/2283F04D 13/14E21B 43/128F04D 29/506F04D 13/021F04D 13/10

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References

Claims

Abstract

An ESP pump includes a first centrifugal pump having a first vane design to operate in a clockwise direction, and a second centrifugal pump having a second vane design to operate in a counterclockwise direction, with a submersible induction or permanent magnet motor for driving the first and second centrifugal pumps. The first and second centrifugal pumps being connected to a common shaft.

Claims

exact text as granted — not AI-modified

1 . An ESP pump which includes
 a first centrifugal pump having a first vane design to operate in a clockwise direction   a second centrifugal pump having a second vane design to operate in a counterclockwise direction   a submersible induction or permanent magnet motor for driving the first and second centrifugal pumps   the first and second centrifugal pumps being connected to a common shaft.   
     
     
         2 . An ESP pump according to  claim 1  wherein the first centrifugal pump has a larger flow rate than the second centrifugal pump. 
     
     
         3 . An ESP pump according to  claim 1  wherein the first centrifugal pump has a smaller flow rate than the second centrifugal pump. 
     
     
         4 . An ESP pump according to  claim 1  wherein the first centrifugal pump has a smaller flow rate than the second centrifugal pump have similar flow rates or the same flow rate.

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