The project was executed at the facilities of ΒΡ Hellas at Linoperamata, Crete and included the following works:
Replacement of the oil and gasoline loading pipes of the facility up to the pig-station, pipes diameter was 6". Land segments ~ 95m long for each pipe, undersea segments 320m long of oil pipe and 360m gasoline pipe. In particular:
1. Land segments
Pre-construction of the entire land segment of oil and gasoline pipes, removal of existing pipes and installation of new ones, construction of all necessary fixtures and connection with the sea segments.
2. Sea segments
§ Pre-construction of the oil and gasoline pipes at ~ 48m lengths, quality controls and restoration of pipes special protection
§ Pre-construction of new retaining boulders made of armed concrete as per the design drawings in order to supplement existing ones
§ Excavation and surfacing of undersea segments of pipes and removal of all boulders and fixtures of the pipes
§ Surfacing of sea segments, excavation of land segment, cold cutting, removal of old pipes and transportation to land at indicated site
§ Setting of new pipe segments on special structure, welding of pipe segments per 48m, quality control with 100% X-R and welding certification, restoration of special pipes protection
§ Transportation of the entire mono bloc sea segment of pipes to the final laying position, installation in the trench, connection to land segment, transport and installation (laying) of old and new boulders for restraining the pipes
§ Installation and connection of cathode protection of pipes
§ Hydraulic testing and delivery of pipes in operating status
The works on the sea segments of the pipes were executed at different stages.
The works time of each sea segment (floating of old pipe, setting of new one) lasted 62 h non-stops.
The equipment and piping materials were supplied by the Owner.
The metal profiles for steel structures and fixings, the materials for the construction works executed, and the sand blasting - painting materials were supplied by our company.
All works were executed without interruption to the smooth operation of the facilities.
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