Wednesday, March 25, 2026

Subsea News

(Credit: DOF Group)

DOF Gets Subsea Cable Replacement Job by Norway’s Statnett

DOF Group has been awarded a contract by Norway’s transmission system operator Statnett for the replacement of high-voltage subsea power cables in Ofotfjorden, northern Norway.The contract, classified by DOF as substantial with a value between $25 million and $50 million, covers the partial removal of ageing cables between Lødingen and Barøya and the installation of four new 170 kV submarine cables bundled with fibre optic lines.The installation campaign will involve cable laying in water depths ranging from 10 meters to 450 meters.Main offshore execution is scheduled between May

(Credit: TGS)

TGS Wraps Up Three-Year Offshore Campaign in Norwegian Sea

Energy data and intelligence specialist TGS has completed the three-year GeoStreamer X (GSX) acquisition and processing campaign in the Norwegian Sea, culminating in the delivery of the final Dual Azimuth products to clients.With the campaign completed, TGS has made available more than 21,500 square kilometers of high-quality GSX multi-client seismic data available for licensing. The dataset provides a modern, high-resolution foundation for development, ILX and TLX exploration activities across one of Norway’s most prospective offshore regions.The GSX program delivers an advanced, high-density

Source: DEEP

DEEP Selects Reef in Florida Keys for Habitat Deployment

DEEP’s pilot subsea human habitat, Vanguard, will be deployed at Tennessee Reef in the Florida Keys National Marine Sanctuary.Installation is planned for the end of April 2026. It will be the first subsea human habitat deployed in the United States in 40 years.First unveiled in Miami in October 2025, Vanguard is now in the final stages of commissioning, including final outfitting, subsystem testing, and integrated acceptance trials.Vanguard is designed to enable up to four crew members to live and work underwater for days at a time, enabling extended time on the seafloor for ocean science

Illustration (Credit: SLB)

OneSubsea Moves to Acquire Norway’s Envirex Subsea Business

OneSubsea, a joint venture between SLB, Aker Solutions, and Subsea7, has entered into an agreement to acquire the subsea business of Norway-based Envirex Group.The acquisition is expected to add Envirex’s specialized technologies and research and development capabilities to OneSubsea’s global technology portfolio.The companies said the move is intended to accelerate deployment of new technology solutions and expand the range of subsea services offered to customers worldwide. “This agreement represents a natural next step in a collaboration that has developed over more than a

Source: WAMSI

Watch: Australia Hosts World's First Live Underwater Podcast

In celebration of World Seagrass Day on March 1, Paramount Importance held the world's first live underwater podcast highlighting the vital role of seagrass in our underwater ecosystems.The podcast was released on YouTube this week.Science communicator and marine scientist, Kurt Krispyn, founder of the science communication platform Paramount Importance, hosted the underwater broadcast. The podcast featured seagrass expert Associate Professor Mike van Keulen from Murdoch University, with Dr. James Tweedley, marine scientist from Murdoch University, acting as topside host.Krispyn said the decision

Source: Fugro

Fugro Increases Contribution to UN Ocean Decade Initiative

Fugro has announced further commitment to The Nippon Foundation-GEBCO Seabed 2030 project, a flagship program of the United Nations Ocean Decade.As the Ocean Decade reaches its halfway point, Fugro is expanding the group of vessels actively contributing to the Seabed 2030 project. Fugro’s largest vessels, working on geotechnical surveys, are now also contributing to the collection of ocean-floor data alongside the original and ongoing geophysical fleet.The UN Ocean Decade aims to generate “the science we need for the ocean we want.” Achieving this vision depends heavily on data

(Credit: Kongsberg Discovery)

DOF Selects Kongsberg Listen for HUGIN AUV Survey Platform

Kongsberg Discovery has secured the first commercial order for its Kongsberg Listen electromagnetic sensing solution, with subsea services provider DOF selecting the technology for deployment on a HUGIN autonomous underwater vehicle (AUV).The new HUGIN vehicle, rated for operations at depths of up to 3,000 meters, will operate under a long-term contract with Brazil’s leading oil and gas operator to support deepwater survey and inspection work across offshore fields in Brazil.The AUV will carry an integrated payload including the Kongsberg Listen electromagnetic sensing system, the EM2042 multibeam

Source: Viridien

Viridien and BGP Win Guyana 3D Seismic Program

Viridien and BGP have entered into an agreement with the Ministry of Natural Resources of the Cooperative Republic of Guyana to launch a massive multi-client 3D seismic acquisition and imaging program across the shallow water acreage lots 2, 3 and 4, an area comprising approximately 25,000 square kilometers.New data will be acquired by BGP and high-end seismic imaging will be performed by Viridien, applying its industry-leading proprietary advanced workflows, including state-of-art shallow water demultiple and time-lag full-waveform inversion (TLFWI). The resulting new subsurface images, along with

Source: Oi26

Breakthrough Technology Unveiled at Oceanology International

and plentiful business activity as Oceanology International 2026 (Oi26) surpassed expectations on the second day at Excel London.Among the companies taking center stage, expanding platform OceanSight used Oi to unveil its new collection of ocean technology brands built to advance marine sensing and subsea intelligence, celebrating an exciting new chapter focused on accelerating innovation and strategic growth.OceanSight, unveiled by XPV Water Partners earlier this month, is building a differentiated platform focused on technologies that enable greater understanding and visibility beneath the ocean

The annual Oceanographic issue explores deep sea oxygen research, sonar technology, carbon sequestration, and subsea defense trends.
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