CLORIDES CORROSION

[GabrieleB]

I have a reinjnection water with 67000 ppm of clorides.
Wich is the pratically solution for the piping in this case.
Carbon steel or Duplex material?
Wich is the mechanism of corrosion of clorides on carbon steel? If there is an absence of oxigen is the corrosion inhibited? Thank's for your answer.
P.S. Naturally the duplex is the bettere choice, but is carbon steel technically applicable?
For the moment we not consider GRP/GRE pressure is too elevate

 

[tomwalz]

You might try cloride with an "H" as in "Chloride" on a Google search. Seems to be a lot of material on the subject.

My experience with this is lab based and I would say stainless but there may be a cheaper solution.

Thomas J. Walz
Carbide Processors, Inc.

http://www.carbideprocessors.com

Good engineering starts with a Grainger Catalog.

 

[stanweld]

Carbon steel has been/is beeing used for de-oxgenized sea water injection (water flood) wells to increase oil production.

 

[rustbuster]

What is you're operating temperature? any other corrodents in the water? If you are more specific with the chemistry you will get a better opinion in here.

 

[brimmer]

If you take out the oxygen your corrosion rate will be reduced greatly, but there still will be corrosion at very low levels (genarally speaking not knowing the deatils of your scenario). You can also try a liner and carbon steel, don't know the configuration of your piping or pressure, but this is an option that works very well.

 

[SJones]

Produced water is known to be corrosive and that is why NORSOK M-001 only recommends corrosion resistant alloys or non-metallics.

Steve Jones
Materials & Corrosion Engineer

http://www.oilandgaspeople.com/cv/11499664

http://www.linkedin.com/pub/8/83b/b04