Posted by John Deere D on January 23, 2019 at 23:28:58 from (199.66.171.25):
In Reply to: Pipe Line update posted by JD Farmer on January 23, 2019 at 13:47:49:
I retired in my 40 th year as a Senior Field Technician, an acting Power Engineer over a 350>400 mile section of both the 30" and 36" Natural Gas Pipe Line SYSTEM with a wide spectrum of responsibility:
For those who are interested in the "FAILURE of NATURAL GAS PIPELINES" please free to enhance your knowledge by reading "Stress corrosion cracking (SCC)" on the Internet.
Stress corrosion cracking (SCC) IS NOTHING TO BE TAKEN LIGHTLY!!!!!!!!!! ....Been there done that.....SCC LOCATIONS MUST BE IDENTIFIED and handled with ENGINEERED PROVEN REPAIRS!
Stress corrosion cracking (SCC) is the growth of crack formation in a corrosive environment. It can lead to unexpected sudden failure of normally ductile metals subjected to a tensile stress, especially at elevated temperature.
Corrosion,Cathodic Protection of the Pipeline infrastructure is also a subject not to be taken lightly!!! Anode beds.......WERE ALWAYS IN PLACE and MAINTAINED!.....makes for great reading!
INTERNAL INSPECTION TOOLS / TECHNOLOGY is the only way I ever felt confident pipelines transporting processed METHANE GAS was being well inspected:
Bob..Retired in my fortieth Year ..Natural Gas Transmission...Power Engineer....Gas Turbine Specialist:
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