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Sealing system in a multiple ascending column composite, method for preventing leakage of internal fluid to the outside of an ascending column composite, and,The interface metal composite of a set of coating for a composite ascending column
Sealing system in a multiple ascending column composite, method for preventing leakage of internal fluid to the outside of an ascending column composite, and,The interface metal composite of a set of coating for a composite ascending column
The present invention discloses multiple sealing systems for composite risers and methods of preventing interior fluid leakage to the outside of composite risers. Single or multiple elastomeric seals are formed between an elastomer applied in single or multiple grooves provided circumferentially along the outer surface of a metal to composite interface (MCI) of a liner assembly of the composite riser and an elastomeric shear ply provided on the outside of the liner assembly. The elastomeric seals and a seal between the MCI and the liner of the liner assembly provide a multiple sealing system for the composite riser to prevent leakage of interior fluids. In the event that the integrity of the seal between the MCI and liner fails or the integrity of the liner is compromised, the elastomeric seals would prevent leakage of the fluid to the outside of the composite riser.
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