In October 2016 AIM Service Italia was charged with a contract for the provision of Hot-tapping service by SAIPEM, italian Engineering & Construction Company part of ENI Group.
The requested activity consisted in 6 hot tapping, with diameters between 3 and 10 in. and ratings from 150lbs up to 600 lbs.
The service was to be provided on Kitina, ENI oil platform offshore Pointe-Noire, Congo, during revampig works.
Hot-tapping was required to support maintenance activity by allowing the connection of new pipelines to existing ones while these were in flow, so without any interruption of production.
The design and construction of the six new branch connections (fittings) was made ‘in shop’ by AIM Service Italia.
AIM Service Italia also issued all the relevant document for the execution of work (specifications, dedicated procedure, method statement and risk assessment).
At arrival on-site, the team performed final survey to assess feasability accordingly with initial request, finding that no substantial variation were required to perform the activity.
After the installation of the fitting by welding (made by Customer under supervision of AIM Service Italia), hot-tapping operations started.
Due to the particular site of operation and the process, strict safety procedure were established and followed by the team of AIM Service Italia, in order to preserve both the people and the running plant.
The job was carried out successfully, without the loss of any coupon (the part of pipe which is cut) into the line, and it was executed in about 4 days of operation, instead of the 6 days forecasted.