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COMPOSITE WRAP's for pipeline repair

COMPOSITE WRAP's for pipeline repair

COMPOSITE WRAP's for pipeline repair

(OP)
What is Your expirience with composite wrap for onshore underground gas pipeline repairs?

Until now we have used Clock Spring, some times WrapMaster (PermaWrap). I think this is fiber glass wrap's.

Now we have some "Black Diamond" (Res-Q) which is carbon wrap, much more flexibile around welds, tee's, bend's, etc. We need it for repair of corrosion anomalies 30-40% of pipewall thickness, sometimes up to 60%.

Question is it acceptable for use and is it suitable replacement for Clock Spring? How is regulated acceptance by currently valid standards?

I know about manufacturers presentation facts, but I want 3'rd party opinion ..
 

RE: COMPOSITE WRAP's for pipeline repair

(OP)
As I can see from preview in PRCI, and from HSE guidlines, there is no mention of Black Diamond (new name Res-Q) composite wrap.

This is carbon fiber composite wrap ofered by TDW, there for should be ok, but I can not find anyone with real expirience ..
 

RE: COMPOSITE WRAP's for pipeline repair

around here they use a polyken tape in various thicknesses

RE: COMPOSITE WRAP's for pipeline repair

(OP)
Polyken tapes are only for anticorrosion protection, and we use it also. Composite wraps (Black Diamond, ResQ, ClockSpring, PermaWrap, WrapMaster) are for reinforcement or repair of damaged pipe (corrosion damage, dent, gouge, etc.)

We have used most of them, but Black Diamond and/or ResQ is new on market, I see it is easy for use, and practical, but I'm not sure about quality, and I want to hear second opinions ..
 

RE: COMPOSITE WRAP's for pipeline repair

Clock Spring has a wet lay-up as well called Contour.  I can highly recommend.

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