ibraag
Mechanical
- Aug 8, 2007
- 3
Folks,
We have a number of underground pipelines that are made of high strength polyethylene and PVC. These are in what we call sour gas service, i.e. relatively high content of H2S (up to 4%). Canadian regulations allow usage of plastic pipelines for up to 5% H2S. I am not sure if there is any scientific basis behind that figure. Now we are in the process of abandoning a few plastic lines. We would like to do some material testing to see if any degradation occured. I need some help with what type of testing to go for and any standards in accordance to which such testing shall be done.
We have a number of underground pipelines that are made of high strength polyethylene and PVC. These are in what we call sour gas service, i.e. relatively high content of H2S (up to 4%). Canadian regulations allow usage of plastic pipelines for up to 5% H2S. I am not sure if there is any scientific basis behind that figure. Now we are in the process of abandoning a few plastic lines. We would like to do some material testing to see if any degradation occured. I need some help with what type of testing to go for and any standards in accordance to which such testing shall be done.