tubing leaking
tubing leaking
(OP)
Dear jents
I have a question about tubing leaking in Esp systems,, I want know what is the affect of tubing leaking on motor amp (running amp)as I read on some papers that it Dec the amp,and which I think not correct, any help please.
Second thing,
I have a question about tubing leaking in Esp systems,, I want know what is the affect of tubing leaking on motor amp (running amp)as I read on some papers that it Dec the amp,and which I think not correct, any help please.
Second thing,





RE: tubing leaking
second thing???
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way
RE: tubing leaking
RE: tubing leaking
David Simpson, PE
MuleShoe Engineering
In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual. ùGalileo Galilei, Italian Physicist
RE: tubing leaking
Look at your pump curve. How much power did it require when it was operating correctly? Using the curve how much power would it require at the maximum flow rate plotted on the curve? This will tell you if the power should go up or down with a tubing leak.
Below are general descriptions of power required based on stage geometry. Remember the size of an impeller designed for an ESP is limited by casing size. Stages used in ESP’s are typically designed a little different than stages used in the industrial pump industry due to the physical space limitations.
1.Radial flow stage power will continue to increase as flow increases.
2.Mixed flow stage power requirements are reasonably flat. For electrical submersible pumps a mixed flow stage will start with a low power requirement at low flow rates and increase to its maximum requirement around the pump BEP. It will then start to decrease as flow increases above BEP.
3.Axial flow stage (gas pumps) power is highest at 0 flow and decreases as flow increases.
RE: tubing leaking
overload and under load setting and its time delay.
some engineers use to set over load on 115% of running amp, some set it one 115% of rated motor amp,,with start delay zero seconds and run delay between 4 to 8 seconds.
for underload ,its common of 85 to 80 % of running ampere with long start ( 10 seconds )and run delay (30 sec ).
my question is what is the ideal setting for overload and underload values and its time delay and why ,,thx again for ur help
RE: tubing leaking
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way