Cadweld failures pipelines
Cadweld failures pipelines
(OP)
Has anyone had experience where a cadweld on a pipeline has caused a failure (leak or rupture)? If so what was the cause, cracking from hard spot, etc..
(Not trying to spark a debate about cadwelding to pipelines in general, but what failure mechanism were involved)
Thanks
(Not trying to spark a debate about cadwelding to pipelines in general, but what failure mechanism were involved)
Thanks





RE: Cadweld failures pipelines
Let your acquaintances be many, but your advisors one in a thousand' ... Book of Ecclesiasticus
RE: Cadweld failures pipelines
RE: Cadweld failures pipelines
Could be poor coating around the cadweld leading to excessive localized corrosion? Must be thin wall pipe?
Greg Lamberson, BS, MBA
Consultant - Upstream Energy
Website: www.oil-gas-consulting.com
RE: Cadweld failures pipelines
Let your acquaintances be many, but your advisors one in a thousand' ... Book of Ecclesiasticus
RE: Cadweld failures pipelines
My only problems encountered with cadwelding involved the use of molds too many times resulting in the exothermic puddle depositing on the pipe (still reactive), melting the copper wire resulting in no connection. I investigated for copper migration into the pipe but found none in a few such incidents.
RE: Cadweld failures pipelines
Let your acquaintances be many, but your advisors one in a thousand' ... Book of Ecclesiasticus