STAVANGER, Norway — Baker Hughes has debuted a new fast all-electric tiebacks solution at the Offshore Northern Seas (ONS) conference, designed to achieve cost efficiencies through optimized architecture and a reduced topside footprint.
The company says its new design provides structured building blocks for major subsea assemblies to reduce cycle time.
In combination with Baker Hughes’ all-electric control systems and electrification solutions, capex cost reductions of more than 15% are possible, the company said, compared with traditional electro-hydraulic multiplexed (EH-Mux) systems.
The combined system is said to lead to simplified umbilical and distribution requirements, with no need for hydraulic control fluid and ultimately the elimination of topside HPUs supply for this application.
By adding renewable power sources to deliver remote power and communications systems, the need for long umbilicals and topside power—and associated power for additional tieback infrastructure—can be reduced or even eliminated.
Further, the new technology is said to compress the scale of the required subsea and topside equipment, with associated optimization of vessels deploying the equipment.
“We are not only investing for growth in new technologies, but we are also determined to maximize the life and efficiency of existing fields," said Gareth Davies, executive director of systems and technology, Oilfield Equipment at Baker Hughes. “Our new fast all-electric tiebacks are utilizing traditional oil and gas foundations and putting this to use for a new energy era. Our aim is to make our subsea technology simpler, lighter and deliver them faster to increase efficiency and reduce costs for our customers.”
The new fast tiebacks technology should be commissioned in late 2023, and they will be suited to water depths of up to 3,000 m, with a faster delivery schedule than traditional solution, the company said.