Two out of three Gulf of Mexico tiebacks completed by EMAS AMCCompany News // September 30, 2015
Ezra Holdings' subsea services division, EMAS AMC has completed the first two of three Noble Energy-operated subsea tieback projects in the US Gulf of Mexico.
The scope of work included project management, fabrication and installation of 8in steel catenary risers and 40 miles (64km) of 8in and 12in pipe-in-pipe for the Big Bend and Dantzler field development projects in 7,000ft (2,100m) of water. It also included the design, fabrication and installation of eight subsea structures weighing up to 100 tonnes each. All project management activities were performed at EMAS’ office in Houston, with pipeline production and structures fabrication at the EMAS Marine Base (EMB) in Ingleside, Texas.
Since May 2015, Lewek Constellation has conducted more than 30 heavy lifts of between 900 and 2,200 tonnes, transferring rigid pipe reels, many of them in open water locations, for the Big Bend and Dantzler projects.
"This game-changing technology of multiple, transportable reels combined with heavy lift capability reduces transit time and eliminates the need for direct spooling by the installation vessel, keeping the vessel in pipe-lay mode throughout the entire project," said the company. "This effectively decouples Lewek Constellation from the spool base and takes the pipeline fabrication off the critical path."