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Is there a credible risk of chloride pitting or SCC in production lines/risers (flexibles with 316 and 304 carcass) and or produce water reinjection duplex lines (no sea water) handling deaerated produced fluids with chloride concentration of up to 100,000 mg/l, at temperatures up to 120°C. It...

Can you get bacteria activity (MIC) in wet gas systems and if you have dry gas injection does that eliminate any microbial activity downstream.

MIC is the concerns here. The line in question hooks-up a non-producing well to a producing one (providing the option of switching production if need be). There is scale and wax inhibitor injection.

Can anyone recommend a potential flushing frequency for a dead leg line with potential for stagnant fluid causing internal corrosion (degradation of flexible flowline carcass). The line is a 6” Production Jumper- 316 SS carcass - MAOP 200 barg from well to manifold.

I am looking to define the required flushing frequency for dead leg line that exists between a subsea well and a manifold. Any suggestions on typical frequencies and procedures will be much appreciated.

Temporary Carbon Steel (CS) blinds without specified 625 overlay, were installed with 625/825 gaskets (as specified) and coated CS bolting (again as specified) at a 22Cr Duplex dead subsea tree with a threat of excessive sweet corrosion can it be said that either of the following blinding...

Temporary Carbon Steel (CS) blinds without specified 625 overlay, were installed with 625/825 gaskets (as specified) and coated CS bolting (again as specified) at a 22Cr Duplex dead subsea tree with a threat of excessive sweet corrosion can it be said that either of the following blinding...

The process is multiphase produced fluids from a subsea manifold to an FPSO. The seawater is external, North seabed conditions: Temp should range from about 6 to 17 °C and the Cl content should be 19345 ppm.

I have an issue with a leak at the mid water flange of a 12” production line the corrosion of the gasket is considered a possible failure mechanism, since, the gasket material is 316L and the ring groove, flange face and bore are Inconel 625 clad. I am looking to ascertain the suitability of...