How "sour" is sour as per API-6A for wellhead design

[rigrat2]

I cannot find information anywhere that will tell me how "sour" is sour when designing wellhead systems. The API-6A is the recommended standard but I cannot find it. If someone can find the information (in ppm H2S) and pass it on to me, it would be muchly appreciated. Can someone help me please?

 

[SJones]

Take a look at ISO 15156 -1, -2 - they will define sour service for you and give you guidance on materials too.

Steve Jones
Materials & Corrosion Engineer

http://www.pdo.co.om/pdo/