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15% and 28% Hcl Acid

15% and 28% Hcl Acid

Flow medium: 15% and 28% Hcl Acid
Working pressure: 10000 psi
Flow rate: 60 bbl/min
Working Temp: Max 50 deg C, Min -10 Deg C
What would be the suitable piping material and MOC for valves?

RE: 15% and 28% Hcl Acid

Is it a well stimulation fluid application?

Steve Jones
Corrosion Management Consultant

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

RE: 15% and 28% Hcl Acid

Thanks EdStainless

Steve, yes its for well stimulation fluid application

RE: 15% and 28% Hcl Acid

Quote (EdStainless)

What you will learn that there is no commonly available metal that will work. You are looking at alloys like B-2 and B-3. the better bet is lined FRP. This is common for this service.

Is there really lined FRP that is good to 10000psi?
(genuinely curious - I've used it up to maybe 200-300psi and that is already awfully thick. I can't imagine what a 10000psi rated FRP pipe would look like.)

RE: 15% and 28% Hcl Acid

The stimulation fluid will be treated with an inhibition package. The key information will be what materials were used to assess and select the treatment package. From that data, that should be supplied either by the well owner who qualified the chemicals, or the chemical supplier if the well owner didn't think about it, it will be possible to see whether less exotic materials are protected and have an acceptable chance of of an economic lifetime. API 10k will be a tall order for GRP piping, so a metallic backing as a minimum will be required. It then becomes a case of what to line it with and then whether the chemical treatment will take care of the valve trim.

Steve Jones
Corrosion Management Consultant

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

RE: 15% and 28% Hcl Acid

Badger, I was thinking of metallic with FRP liners, I should have spelled that out.
Most of these treatment packages are designed with a specific MOC in mind. And they should be able to tell you want that is and what the expected life is (usually fairly short).

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube

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