Dear colleagues
Hi:
we have a client who wants to re use a 36 " and 42" trunk produced wet gas pipeline with 16" laterals connected to trunk in new application.
They insist to use the built pipeline which is oversized already.
The pipeline gathering system was designed to operate in Gas lift mode, now we are doing a ESP pump conversion , so there is not much gas at all.
As design is changed , gas velocity is very small ( 2m/s)liquid hold up may cause problems, slug and freezing happens, however the electrical heat trace need to be in service all the time.
my question:
When we have ESP pumps, how does it affect the produced gas pressure, how they manage the gas pressure when it is in ESP mode.
I need some information from people who did the same improvements.
Do you have any article about Gas lift conversion to ESP? WHAT ABOUT PIPELINE VACUUM GENERATION DUE TO CONDENSATION OF GAS, PIPELINE ON LOW POINTS MAY ACT LIKE A VESSEL HOLDING LIQUIDS.
we only require 16" trunk pipeline, line is 12 kilometers with up to 50 meters elevation increase, So I am very concerned about liquid formations and the only tool we have is hysys which is not enough at all.
How can I convince client to build a proper gathering pipeline, imagine that they do not want to spend money at all.
My boss also doe not let me do heat transfer analysis on pipeline, 50% of gas is water vapor at 160 C and 650 kPag.
plus : gas is sour and I am worried about corrosion, for god sake what should I do with this type of clients? thanks all
Edited by ziba, 16 October 2014 - 04:12 PM.