Using the new API 579-1/ASME FFS-1 Code
Using the new API 579-1/ASME FFS-1 Code
(OP)
Hello,
I am doing research in rerating of corroded pipelines. So far I have used the DNV RP F101 and B31G code to calculate the MAOP using the measured anomalies in the pipe. However, I still have to use the new API 579 code, released June this year (API 579-1/ASME FFS-1, JUNE 5, 2007), but this is turning out to be a challenge for me. I was hoping can anyone guide me in how I can use this code to measure the remaining strength of the pipeline as this code is not as straight forward as the DNV and the B31G codes. I would appreciate anyone's input. Thank you.
I am doing research in rerating of corroded pipelines. So far I have used the DNV RP F101 and B31G code to calculate the MAOP using the measured anomalies in the pipe. However, I still have to use the new API 579 code, released June this year (API 579-1/ASME FFS-1, JUNE 5, 2007), but this is turning out to be a challenge for me. I was hoping can anyone guide me in how I can use this code to measure the remaining strength of the pipeline as this code is not as straight forward as the DNV and the B31G codes. I would appreciate anyone's input. Thank you.





RE: Using the new API 579-1/ASME FFS-1 Code
If you are able to supply more details of the system you are analysing I may be able to advise further.
RE: Using the new API 579-1/ASME FFS-1 Code
D: 20in, MAOP: 129bar, WT: 12.7mm, and grade of X65.
There are roughly 15 anomalies, all internal corrosion defects located at the 6 o'clock position, for instance one of the defects has the following data:
Axial(mm): 588; Circ(mm):94mm and Depth (%WT):48
I have been able to determine the MAOP using DNV-RP-F101 and the ASME B31G code, but the API RP 579 seems a bit difficult for me to understand. I have tried to read Section 5 of the code (Local metal loss) but it just jumps around the whole code without clarity on my part. All I was hoping for is a guide as to how to use the code maybe depicted in an example if possible.
I would be most grateful for any assistance.
Many thanks, XTZ123!
Looking forward to your reply.
RE: Using the new API 579-1/ASME FFS-1 Code
RE: Using the new API 579-1/ASME FFS-1 Code