The company was awarded a contract to supply 457mm OD x 28.6mm WT API 5L PSL2 X65MO line pipe from its large diameter 42" Double Submerged Arc Welded (DSAW) mill in Hartlepool, UK for the development.
The project marked the first where a pipeline had been laid at water depths greater than 3,000 feet in the Mexican section of the Gulf.
Tata Steel was selected for the project due to its extensive experience in the manufacture of small diameter and thick wall deepwater line pipe. The mill has been the focus of significant recent investments to enhance technology and processes and increase power efficiency. More than 125 improvements were completed in 2015 to strengthen its overall operational and performance capability.
He added that the overall benefit of the investments can be seen in the welding quality performance achieved during the project in the Gulf of Mexico where small diameter and thick wall pipe is typically more challenging. "On this project, a combined repair rate of 0.25 per cent was achieved. This was delivered not only due to the investment in welding technology but also through a programme of continuous improvements in the welding area which has seen similar developments across many sizes of pipe," said Broughton.
