In One of our Oil Field project , Oil , water and gas are separated in a separation train operating at 95°C and 3 barg pressure. The separated water is filterd and then Injected back in to the oil field reservoir to maintain the reservoir pressure.
The well fluid contains 20% Co2 and 500 ppm H2S in gas phase and the produced water contains 4500 ppm chlorides.

Presently the existing system has CS Pipe and having corrosion problem.
With new expansion project, client want to verify the MOC for this inlet line.
My question is:
1. Can we use FBE coated pipes in production fluid service? I have checked through different websites but not found any similar usage references.
2. Do we have any alternative other than Duplex material or FBE Coated CS in above service.


Thanks in advance.

Regards,

Puskar