pipe roll
pipe roll
(OP)
Hello,
I would like to get some information about pipe roll (rotation of the pipeline when installed subsea) and the ways to prevent it when installing tees or valves.
Regards,
I would like to get some information about pipe roll (rotation of the pipeline when installed subsea) and the ways to prevent it when installing tees or valves.
Regards,





RE: pipe roll
http://virtualpipeline.spaces.msn.com
"What gets us into trouble is not what we don't know, its what we know for sure" - Mark Twain
RE: pipe roll
Actually I would like to know the ways used in industry to stop this happening.
Regards,
RE: pipe roll
Are you towing out, lowering in... cutting into existing ?????
http://virtualpipeline.spaces.msn.com
"What gets us into trouble is not what we don't know, its what we know for sure" - Mark Twain
RE: pipe roll
Actually, I am interested in the ways of stopping it during deep S-lay installation.
Regards,
RE: pipe roll
http://virtualpipeline.spaces.msn.com
"What gets us into trouble is not what we don't know, its what we know for sure" - Mark Twain
RE: pipe roll
RE: pipe roll
http://virtualpipeline.spaces.msn.com
"What gets us into trouble is not what we don't know, its what we know for sure" - Mark Twain
RE: pipe roll
RE: pipe roll
RE: pipe roll
Siddharth
These are my personal views/opinions and not of my employer's.
RE: pipe roll
But those are for the connection, not trying to control it during laying. I think that's what S0606 is aftera. I don't know if anyone is trying to control it during laying, except by holding tension and not letting it overbend too much.
http://virtualpipeline.spaces.msn.com
"What gets us into trouble is not what we don't know, its what we know for sure" - Mark Twain
RE: pipe roll
BigInch,
Yes meant Swivel flanges. I cant get what exactly S0606 is looking for!
Siddharth
These are my personal views/opinions and not of my employer's.
RE: pipe roll
I've always included a misalignment fitting "ball-socket type" in my tie-ins. It accepts a few degrees angular misalignment and rotates to any angle to match flange bolt holes, but that's for tie-ins, not during laying.
http://virtualpipeline.spaces.msn.com
"What gets us into trouble is not what we don't know, its what we know for sure" - Mark Twain
RE: pipe roll
I am looking for more information on the subject of rectifying this problem
RE: pipe roll
I have seen flotation sections attached to the upper section of the pipe as it is being runout, this keeps it orientated.
Offshore Engineering&Design
RE: pipe roll
RE: pipe roll
http://virtualpipeline.spaces.msn.com
"What gets us into trouble is not what we don't know, its what we know for sure" - Mark Twain