REINFORCEKiT® 4D SUBSEA (R4D-S) is an advanced permanent composite repair system for subsea pipes.
The original 3X ENGINEERING concept is an association of Kevlar® tape and specific bi-component epoxy resin that polymerizes underwater.
R4D-S is a wet lay-up system wrapped helicoidally by external application around the pipe in order to bring the mechanical resistance to the damaged pipe section.
In accordance with ASME B31G, ASME B31.1, ASME B31.3, ASME B31.4, ASME B31.8, ISO/TS 24-817, ASME PCC-2, DNV-RP-F101, DNV-RP-D101 & DNV-OS-F101 standards, this patented product is recommended to repair and reinforce pipes operating between +10°C to +50°C, suffering from internal or external corrosion defects and mechanical damages in subsea environment.
We have developed our own software called Reinforcekit Engineering Analysis (R.E.A) to design the composite repair and define the material requirements in accordance with existing international standards. For subsea operations, we provide our technical team to manage your divers and ensure the respect of the implementation.
This subsea composite wrapping technique is a very cost effective solution because each underwater repair requires less time than any other techniques. Moreover, it can easily be applied by trained divers.
| Use | EXTERNAL AND INTERNAL CORROSION ON SUBSEA LINE |
|---|---|
| Pipe diameter | No limitation |
| Pipe temperature | +10°C / +50°C (+50°F / +122°F) |
| Fiber | Kevlar® |
| Resin | R3X1050S + P3X32 Primer |
1 Surface preparation (sandblasting)
2 Filler application
3 Primer application
4 Kevlar® tape impregnation with resin
5 R4D®-S wrapping over the pipe
BOBiWRAP® is an advanced machine designed to wrap composite materials over damaged or corroded subsea pipelines. It ensures a regular overlap and tension of the tape during wrapping.
After more than 24 months going through conception, development and manufacture, the first tests have been performed in the Port of Monaco in November 2012. The efficiency of the machine co-patented by TOTAL and 3X ENGINEERING was demonstrated.
Underwater, trained divers can now proceed with the repair by dividing by 3 the operating working time compared to traditional wrapping solution.
| Dimensions | Length: 2050 mm Width: 880 mm Height: 850 mm |
| Weight (in air) | About 250 Kg |
| Repair capacity | Minimum length: 100 mm Maximum length: 1000 mm Minimum diameter: 8" Maximum diameter: 12" |
| Material | Stainless steel, aluminium, bronze |
The BOBiPREG® is a prepreg system designed by 3X ENGINEERING to perform a quick impregnation of the Kevlar® tape with the resin. This device is very useful during the implementation of R4D-S®, for which the tape has to be impregnated before immersion.
