R4D, corrosion – Nigeria

Oil & Gas
Bobiwrap presentation


The objective of the job, performed by 3X ENGINEERING (3X) and its local distributor SAVIC, was to protect a 16” pipe from aggressive environment on several long sections (for a total of 70-meter length).


The reinforced protection was performed in a yard, prior on-site assembly, using BOBiPREG® machine. This specific machine, designed by 3X, allows a quick and regular impregnation of the Kevlar® tape with the resin before application.

This pre-preg system was very convenient for this case because the REINFORCEKiT® 4D-EC application should be carried out as fast as possible. The reinforced protection was performed following 4 stages:

1. Surface preparation of the pipe using sandblasting to get at least 60 µm roughness and thus ensure a good bonding between the pipe and the composite.

2. Kevlar® tape impregnated with R3X1060 resin using BOBIPREG®.

3. Wrapping around the pipe using 3X specific handles to ensure proper tensile strength during application. This device will facilitate and speed-up the wrapping step. Four layers were applied to guarantee an optimal protection.

4. Finalization of the protection with reference plate positioning for traceability purpose.


Initially developed for subsea application, BOBIPREG® machine is proving to be also very efficient in this onshore configuration. This application method added to onsite conditions offer many benefits:
– easier logistic & safer environment (implementation environment performed in a yard rather than a platform).
– efficiency increased & cost effective (the wrapping was performed four times faster than with traditional method).