Quad/Hex/Collar weld

[zacharialamsyah]

Dear all
I read some article about J lay pipeline installation, and i found some terms about Quad/Hex/Collar weld, which i not clearly understand

1.What is the definitions of quadruple, hex weld or collar weld which are related to J Lay pipe installation? Can someone explain ?

Thank you for explanation and answer

Regards,
Zachari Alamsyah

 

[racookpe1978]

Copy the words in that article here. Too vague otherwise.