RISER PIPE SPLASH ZONE PROTECTION - monel or neoprene

[Ahmed s]

what are the pros and cons of Monel over Neoprene lining over splash zone Riser pipe coating ?

 

[1503-44]

https://search.spe.org/i2kweb/SPE/doc/onepetro:BF7C2209

--Einstein gave the same test to students every year. When asked why he would do something like that, "Because the answers had changed."

 

[EdStainless]

Coating on what?
Any sun exposure?
Any risk of mechanical damage?

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P.E. Metallurgy, consulting work welcomed

 

[1503-44]

Pipeline riser.
Usually inside a guard structure, but workboat regularly take them both on.
Sun
Air
Wind
Waves
Salt water
Marine growth


--Einstein gave the same test to students every year. When asked why he would do something like that, "Because the answers had changed."

 

[EdStainless]

I can't see neoprene holding up in the long term.

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P.E. Metallurgy, consulting work welcomed

 

[SJones]

Pros: Durability (Reliability), Damage Tolerance, No external corrosion allowance

Cons: Cost, Availability

Steve Jones
Corrosion Management Consultant

http://www.linkedin.com/in/drstevejones

All answers are personal opinions only and are in no way connected with any employer.

 

[1503-44]

We always used black rubber vulcanised to the pipe or Splashtron. Both worked very well.

https://duckduckgo.com/?q=vulcanized+rubber+in+splash+zone+pipeline+coating.&t=brave&ia=web

--Einstein gave the same test to students every year. When asked why he would do something like that, "Because the answers had changed."

 

[SJones]

Polychloroprene around 15 mm or more, dependent upon metocean conditions, appears to have acceptable performance. Never had to deal with a monel clad riser although some operators have specifications for them in addition to those that they have for polychloroprene.

I missed another pro for monel: the finished pipe will not have to be shipped to and from a coating plant

Steve Jones
Corrosion Management Consultant

http://www.linkedin.com/in/drstevejones

All answers are personal opinions only and are in no way connected with any employer.

 

[MJCronin]

I would use solid MONEL for everything, Ahmed ... You cannot be too safe ... Corrosion is 24/7

MJCronin
Sr. Process Engineer

 

[1503-44]

The whole pipeline, or just the splash zone?

--Einstein gave the same test to students every year. When asked why he would do something like that, "Because the answers had changed."