C&W Offshore Ltd was awarded an engineering, procurement and fabrication contract by WorleyParsons Canada and ExxonMobil Canada Properties for the Hebron Helideck in the 3rd quarter of 2013. The helideck consisted of 2 main aluminum bolted structures, the landing and parking area, that when outfitted weighted 104 tons and has over 15,000 structural bolts. The landing area is a 23.5 meter octagon with a depth of 5 meters. The parking area is 16 x 8.5 x 5 meter structure that allows the operator to support helideck operations and park an S92 Sikorsky if required. C&W Offshore Ltd issued a subcontract to Bayards Aluminum from the Netherlands for the structural design of the Helideck and the procurement and processing of aluminum materials. Bayards is one of the world’s leading designers of aluminum structures including helidecks, stair towers and yacht hulls and superstructures. In order to provide the maximum benefit to the local industry through transfer of knowledge and work experience Bayards mobilized various personnel to Newfoundland over the course of the project, including design engineers, CNC operators and construction supervisors.
A helideck requires a lot of equipment and support services to meet offshore requires and as part of the project C&W Offshore designed, fabricated and outfitted the helideck with free issued and procured safety equipment including fire monitors and hydrants, non-directional beacon, heli-fuel skid, eye wash station, fire extinguishers, CAP 437 7th Ed compliant lighting (Circle &H), lighting, instrumentation and telecoms. Piping fabrication scopes included carbon, stainless, duplex and super duplex materials.
The helideck was designed and fabricated to meet CAP 437 specifications, CNLOPB guidelines, CSA certification and DNV GL approval. The project was complete in November of 2015 with transfer to client and loadout via SPMT’s in January of 2016.

C&W Offshore Ltd was awarded a fabrication contract by WorleyParsons Canada and ExxonMobil Canada Properties for the Hebron East Life Boat Station (ELBS) in the last quarter of 2013. The ELBS is a rectangular shaped deck structure with approximate overall dimensions of 19m long x 16m wide x 10m high with a total dry outfitted weight of 190 tons. C&W Offshore was responsible for all fabrication engineering, fabrication, coatings, and outfitting including safety systems and E, I &T scopes. Like the WLBS this structure also included a top tubular structure which allowed the complete ELBS to hang from the topsides living quarters via 2 pin connections in the tubulars. These connections were also machined on site to correspond to the connection points on the UPM. This tubular structure was comprised of approximately 20 tons of steel ranging in size from 273mm – 450mm OD. Due to the size of the structure and the requirement to transfer it to our client at a marine port C&W Offshore completed the fabrication in modules that could be transferred from our fabrication facility to our newly constructed coating facility and then by road to the Bay Bulls Marine Terminal. The largest module was the center section that left our facility as a fully enclosed 55 ton box type structure, which was fabricated and painted at C&W’s facility, then road transported to the assembly site. Once at the marine site all modules were positioned on 1 meter high adjustable fabrication stands and connected. Temporary enclosures were used to facilitate the final welding, coating and E,I&T scopes. Based on the design a significant portion of welding was classified as confined space and at times 6-8 staff were inside the structure. All fabrication was completed according to the latest industry specifications including W59.2 and Annex U and CNLOPB guidelines. The project was complete in Dec of 2015 with transfer to client and loadout via SPMT’s in January of 2016.

C&W Offshore Ltd was awarded a fabrication contract by WorleyParsons Canada and ExxonMobil Canada Properties for the Fabrication and Outfitting of the Hebron West Life Boat Station (WLBS) in the last quarter of 2013. The WLBS is comprised of 2 mirror image subassemblies, 19m long x 16m wide x 10m high with a total dry outfitted weight of 210 tons. C&W Offshore was responsible for all fabrication engineering, fabrication, coatings, and outfitting including safety systems and E, I &T scopes. A unique aspect to the design included a top tubular structure which allowed the complete WLBS to hang from the topsides living quarters via 4 pin connections in the tubulars. These pin connections were surveyed in place once welding was completed, and machined to suit the connections on the living quarters. This tubular structure was comprised of approximately 100 tons of steel ranging in size from 163mm- 406mm OD. Due to the size of the structure and the requirement to transfer it to our client at a marine port C&W Offshore completed the fabrication in modules that could be transferred from our fabrication facility to our newly constructed coating facility and then by road to the Bay Bulls Marine Terminal. Once at the marine site all modules were positioned on 1 meter high adjustable fabrication stands and connected. Temporary enclosures were used to facilitate the final welding, coating and E,I&T scopes. One of the highlights of this project was a lift of the top tubular structure onto 6 prepositioned legs and landing them within 3mm of tolerance. All fabrication was completed according to the latest industry specifications including W59.2 and Annex U and CNLOPB guidelines. The project was complete in December of 2015 with transfer to client and loadout via SPMT’s in January of 2016.

Coming soon…….