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    What Is The Reason For ESP Temperature Rise

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    azareiforoush
    The ESP in the well has been experiencing rising temperatures from 110 to 135 degrees Celsius over the past 4 months despite a constant fluid rate. There are two likely reasons for this: 1. The ESP may not be fully submerged in liquid, which is necessary for proper cooling. While sensors should shut off the ESP if the liquid level drops too low, it could still operate and overheat. 2. The maximum operating temperature of the ESP may be lower than the environmental temperature at its installed depth in the well. This would cause it to continuously operate above its rated temperature. To diagnose the issue, the operator should check the ESP's current draw history to see if motor damage from overheating could explain the

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    What Is The Reason For ESP Temperature Rise

    Uploaded by

    azareiforoush
    485 views2 pages
    The ESP in the well has been experiencing rising temperatures from 110 to 135 degrees Celsius over the past 4 months despite a constant fluid rate. There are two likely reasons for this: 1. The ESP may not be fully submerged in liquid, which is necessary for proper cooling. While sensors should shut off the ESP if the liquid level drops too low, it could still operate and overheat. 2. The maximum operating temperature of the ESP may be lower than the environmental temperature at its installed depth in the well. This would cause it to continuously operate above its rated temperature. To diagnose the issue, the operator should check the ESP's current draw history to see if motor damage from overheating could explain the

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    The ESP in the well has been experiencing rising temperatures from 110 to 135 degrees Celsius over the past 4 months despite a constant fluid rate. There are two likely reasons for this: 1. The ESP may not be fully submerged in liquid, which is necessary for proper cooling. While sensors should shut off the ESP if the liquid level drops too low, it could still operate and overheat. 2. The maximum operating temperature of the ESP may be lower than the environmental temperature at its installed depth in the well. This would cause it to continuously operate above its rated temperature. To diagnose the issue, the operator should check the ESP's current draw history to see if motor damage from overheating could explain the

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    485 views2 pages

    What Is The Reason For ESP Temperature Rise

    Uploaded by

    azareiforoush
    The ESP in the well has been experiencing rising temperatures from 110 to 135 degrees Celsius over the past 4 months despite a constant fluid rate. There are two likely reasons for this: 1. The ESP may not be fully submerged in liquid, which is necessary for proper cooling. While sensors should shut off the ESP if the liquid level drops too low, it could still operate and overheat. 2. The maximum operating temperature of the ESP may be lower than the environmental temperature at its installed depth in the well. This would cause it to continuously operate above its rated temperature. To diagnose the issue, the operator should check the ESP's current draw history to see if motor damage from overheating could explain the

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    of 2

    What is the reason for ESP temperature rise?

    Could somebody be able to comprehend what is going in an ESP having its temperature continuously
    rising since 4 months (110 to 135 degC), with a constant fluid rate?

    First Answer:

    Subsurface ESP equipment temperature depend on motor performance. Reservoir fluid acts as refrigerant
    fluid to prevent motor overheating and protect elastomeric seals from high temperatures. According to design
    criterial, motor operating temperature is settled to be controlled with reservoir inflow. However, if there is
    not  enough reservoir influx, motor temperature will rise.

    Now, if you put away any reservoir problem influx, a  progressive motor damaging  is the next thing that could
    produce an overheating. You can check motor consumption historical to confirm or discard this diagnosis.

    Second Answer:

    The main two reasons are:

    1. ESP maximum Operating Temperature is less than the environment temperature at the ESP setting depth:
    ESP is set deep in a well that would have its environment temperature less than the maximum operating
    temperature of the ESP. So at the operating temperature of the ESP would always be less than the maximum
    Operating Temp.

    2. ESP is not fully covered by liquid: ESP would have to be fully covered by the dynamic fluid level of the
    produced liquid to ensure proper cooling of the rotating elements of the ESP/ Although, the ESP should
    automatically shut off once the dynamic level falls deeper the ESP sensors, it might go on producing and
    temperature increase. 

    How we can confirm that the failure reason of an ESP installation is a reverse rotation?

    ESP systems fail for many reasons, and it is critical to understand and address the root causes of failure
    to consistently meet and exceed run life and production target. Can anyone explain, how we can confirm
    that the failure reason of an ESP installation is a reverse rotation? When we dismantle the ESP
    assembly, what are the evidences of the reverse rotation?

    ESP systems can flow in both directions of rotation, direct or reverse, of course in a
    direct rotation the system will be more efficient;  May be the case where the dynamic level is too low that the
    ESP system does not flow in reverse direction.

    In effect the protocol of tests during the startup contemplates verifying the correct direction of rotation;   In
    reverse the system will consume less current and this is how it is determined which is the correct direction.

    Another  way to verify the correct rotation is measuring time  to get the fluid on surface, in reverse rotation it
    will take longer to reach the surface, since the system is more inefficient

    ESP well showed no recovery, stopped the well and DFL showed 1400 ft above the pump,
    try to start the well but down over load, reverse pump rotation but well down due to over
    load, what happen?

    First Answer:

    I think you can check

    1. Static BHP
    2. Flowing BHP

    3. Total Dynamic Head

    4. Friction Loss

    Power Electrical System:

    1. Check Primary Power (Voltage)

    2. Check Fuse

    3. Check Circuit Control

    4. Check Start Button

    Second Answer:

    you need to isolate the problem first if it is surface or down hole, make sure the surface is on operating
    condition, you can disconnect the surface cable and start the drive at no load, if it is ok then second step
    trouble shoot the down hole,

    the reason could be a mechanical condition or electrical condition, so you need to check the insulation
    resistance using megger at 2000v, if it is ok then most likely it is mechanical issue, could be due to well
    condition for example pumping solid material or sand or and debris,

    you can try pumping two volume tubing to flush the pump and its intake while the pump is off, make sure the
    pumping rate within the ESP pump flow range and avoid getting close to the ESP housing burst pressure, then
    wait until the pump stop spinning, then start at reverse rotation for 15 minutes and then stop and switch to the
    right direction and start the ESP, you can adjust the overload to 115% of the motor name plate and check the
    OL set time you can increase couple of seconds and try again ... good luck

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