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Buckling detection in deep water

thread311-282062

Buckling detection in deep water

Buckling detection in deep water

(OP)
Hi Guys,

I'm involved in a deep water project (1400 m WD), and I'm writing a functional specification for installation of rigid pipeline. My question is what are the most suitable methods for buckle detection in such deep water (either in j-lay and reeled pipeline)? Of course the gauging plate doesn't seem a good method for that application.

Thank you  

RE: Buckling detection in deep water

Is not buckle detector used for Reeling and/or J-Lay pipelaying methods?

RE: Buckling detection in deep water

(OP)
For atedionyahoo. Do you mean the standard buckle detector (like a gauge plate)? I know that for deep water application it's not a standard to use it because the risk of rupture of buckle detector itself.
 

RE: Buckling detection in deep water

Can't use a conventional buckle detector with reeled pipe - the pipe is one continuous length and so unless you want to insert ?km of cable inside the reeled pipr it won't work.  Flipside is reeled pipe will have a low D/t ratio (typical rule of thumb D/t < 20) and is thus lees prone to buckling to begin with.

Conventional buckle detectors can be used in J-lay, no more of a PITA that when used with S-lay.

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