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    4d ESP Design Tutorial - Answers

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    mm1919
    This document provides an example design for an ESP system to pump fluid from 7,000 feet underground at a rate of 1,400 barrels per day. It calculates that 81 psi of pressure would be lost to pipe friction. The total pressure required at the pump is calculated to be 3,162 psi. It is determined that 86 stages of pumping would be needed, requiring a 45 horsepower motor. The pump speed is selected to be 2,915 rpm for simplicity.

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    4d ESP Design Tutorial - Answers

    Uploaded by

    mm1919
    82 views6 pages
    This document provides an example design for an ESP system to pump fluid from 7,000 feet underground at a rate of 1,400 barrels per day. It calculates that 81 psi of pressure would be lost to pipe friction. The total pressure required at the pump is calculated to be 3,162 psi. It is determined that 86 stages of pumping would be needed, requiring a 45 horsepower motor. The pump speed is selected to be 2,915 rpm for simplicity.

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    4d ESP Design Tutorial - Answers(1)

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    This document provides an example design for an ESP system to pump fluid from 7,000 feet underground at a rate of 1,400 barrels per day. It calculates that 81 psi of pressure would be lost to pipe friction. The total pressure required at the pump is calculated to be 3,162 psi. It is determined that 86 stages of pumping would be needed, requiring a 45 horsepower motor. The pump speed is selected to be 2,915 rpm for simplicity.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    82 views6 pages

    4d ESP Design Tutorial - Answers

    Uploaded by

    mm1919
    This document provides an example design for an ESP system to pump fluid from 7,000 feet underground at a rate of 1,400 barrels per day. It calculates that 81 psi of pressure would be lost to pipe friction. The total pressure required at the pump is calculated to be 3,162 psi. It is determined that 86 stages of pumping would be needed, requiring a 45 horsepower motor. The pump speed is selected to be 2,915 rpm for simplicity.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 6

    Example ESP Design - Answers

    Well conditions
    Example ESP Design
     L   ν2 
    Pipe Friction at the planned rate:- Δpf =  f  ρf     
     d   2g 

    f = 0.03

     7000   3.28 
    2
    ΔPf   0.03 0.433     81psi
     0.188   2.32.173 

    Total pressure required above pump ΔPd =Pm +ΔPf +ΔPHH


    gPd = 50 + 81 + (0.433 psi/ft) (7000 ft) = 3162 psi
    PIn = PR - Q/PI
    Flowing Bottom Hole Pressure:-
    = 1700 - 1400/2 = 1000psi
    Example ESP Design
    Example ESP Design

    • Head per stage at 1400 b/d is 58 ft


    Example ESP Design

    • Head per stage at 1400 b/d is 58 ft


    • Power per stage at 1400 b/d is 0.52 BHP
    Example ESP Design
    Number of pump stages (N) required & motor power @ 2,915 rpm

    Pd -PIn  psi   3162-1000


    N= = = 86stages
    H  ft  *0.433  psi/ft  58*0.433

    • HHP = 86 (stages)*0.52 (BHP/stage)*(gf) = 45 HHP


    {no correction for fluid density (gf) is required}
    • The pump electric motor may now be chosen.
    • Allow for power loses in the motor & oversize to
    increase run life
    • Choosing a pump speed other than 2,915 rpm
    introduces extra complications
    Pump rate of an ESP is proportional to the speed

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