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[Toor]

Hi all,
Production separator oil outlet line to be connected to existing facility and which is the better option.

Problem; production operating pressure is 400 psi and oil flow is 2000BOPD, in future oil flow will increase to 8000BOPD.
we have two option to connect the oil outlet line with crude oil pump discharge and its discharge pressure is 300psi, in pump discharge option sound good but due to high separator pressure this oil still contain some associated gas and water and quality of crude may affected.
Option two, route the oil to existing separator and led down the pressure to 100 psi through control valve and further separator the oil and water from proposed oil line.
My question is which scheme is better and if connect with separator then ISS control system must be used.
Please provide some guidelines for both options.
Thanks
Toor