Sunday, February 25, 2024

East Coast News

SW Empress (Credit: Shearwater GeoServices)

Shearwater Gets 3D Seismic Job Offshore India

Norwegian marine seismic services firm Shearwater GeoServices has been contracted by the Oil and Natural Gas Corporation (ONGC) for a 3D seismic survey project in the Cauvery Basin, located off the east coast of India.This is another contract awarded recently by ONGC to Shearwater, following the OBN survey deal signed earlier in February.Set to begin in the early months of 2024, the project will cover a 4,600 km2 area in the Bay of Bengal, utilizing the SW Empress to carry out the survey.This initiative underlines Shearwater's role in supporting efficient and technologically advanced exploration

(Photo: TDI-Brooks)

TDI-Brooks' New Vessel Ready for Work

TDI-Brooks' newest vessel R/V Nautilus (formerly known as Nautical Geo) is ready to go to work following a 6-month retrofit period in Las Palmas.The DP2 vessel is currently enroute to the U.S. East Coast to provide support for offshore wind operations. It is expected to be fully prepared for the first offshore wind program by early March.Built in 2000, the 75-meter-long vessel is equipped with the newly-acquired Geomiil Manta-200 CPT, which can be deployed through the mid-ship moonpool. The system has the capability to penetrate the soil up to 40-50 meters, depending on its composition.Nautilus

Dense thickets of the reef-building coral Desmophyllum pertusum (previously called Lophelia pertusa) make up most of the deep-sea coral reef habitat found on the Blake Plateau in the Atlantic Ocean. The white coloring is healthy – deep-sea corals don’t rely on symbiotic algae, so they can’t bleach. Images of these corals were taken during a 2019 expedition dive off the coast of Florida. Image courtesy of NOAA Ocean Exploration, Windows to the Deep 2019.

World's Largest Known Deep-sea Coral Reef Habitat Found

the largest deep-sea coral reef habitat discovered to date, according to a paper recently published  in the scientific journal Geomatics."This strategic multiyear and multi-agency effort to systematically map and characterize the stunning coral ecosystem right on the doorstep of the U.S. East Coast is a perfect example of what we can accomplish when we pool resources and focus on exploring the approximately 50% of U.S. marine waters that are still unmapped," said Derek Sowers, Ph.D., Mapping Operations Manager for the Ocean Exploration Trust  and lead author of the study. "

© magann / Adobe Stock

Frozen Methane Under the Seabed is Thawing – And It's Worse Than We Thought

to warm further. This is a dangerous set of circumstances.The massive venting of methane from similar ancient marine hydrate reservoirs has been linked to some of the severest and most rapid climate changes in the Earth’s history. There is even evidence that the process has started again near the east coast of the US.I have worked on hydrates for over a decade, mainly looking at the methane hydrate offshore of Mauritania, West Africa. Recently I have taken 3D seismic data intended to reveal oil and gas and repurposed it to map out the hydrates under the ocean floor. Ultimately, I wanted to work out

Image courtesy Saipem

Back to School: Virtual Field Trip for 27,000 Students onboard Saipem 7000

an exclusive virtual and interactive school trip organized by Saipem, the Italian engineering services company for the energy sector, on the Saipem 7000 , the third largest crane ship in the world. The naval vessel was involved in laying the foundations for the Neart Na Gaoithe (NnG) wind farm, off the east coast of Scotland.The initiative was born with the aim of making children discover the exceptional work of Saipem engineers and technicians and to delve deeper into the themes of energy transition and wind energy. Participants were able to experience the trip through a special web application, during

Source: Mocean Energy

TotalEnergies Joins Wave Powered Subsea Project

TotalEnergies has joined the Renewables for Subsea Power (RSP) collaborative project which is currently powering subsea equipment off the east coast of Orkney, Scotland, with wave power from Mocean Energy and intelligent subsea energy storage from Verlume.  The £2million demonstrator initiative has connected the Blue X wave energy converter – built by Edinburgh company Mocean Energy – with a Halo underwater battery storage system developed by Aberdeen intelligent energy management specialists Verlume.The fully operational project, which is in situ off the coast of Orkney, aims

Kongsberg EM710 MKII multibeam echosounder data illustrating a pipeline in ~50m depth. (Image: TDI-Brooks)

TDI-Brooks Completes Seismic Program Off Trinidad

TDI-Brooks, a company specializing in geotechnical and offshore survey projects, said Thursday it has completed multiple shallow hazard surveys off the East Coast of Trinidad for independent hydrocarbon producer Perenco T&T Limited. TDI-Brooks’ research vessel Proteus operated geophysical survey equipment such as 2DHR seismic, side scan sonar, magnetometer, sub bottom profiler and multi-beam echosounder for the program.The primary objective for these projects is to identify potential hazards and factors of operational significance relative to the placement of drilling rigs. This involves

© damedias / Adobe Stock

Marine Heatwaves Cause Chaos on the Seafloor

cooling from evaporation. These heatwaves are confined to the surface and a few meters below.Then there’s the second, a very weird heatwave system that only appears close to the seafloor. These are produced when strong wind creates currents driving warm, shallower water down to the bottom. On the east coast, these currents come from cold winds from the south. So even while you’re shivering through cold winds from the Southern Ocean, the ocean seafloor may be sweltering through a heatwave. These may be the most destructive to ecosystems but go all but unnoticed.This figure shows the different

© Alexey Seafarer / Adobe Stock

Sand Dredging is 'Sterilizing' Ocean Floor, UN Warns

the bedrock, meaning that "life may never recover", Peduzzi added.While globally the 6 billion being extracted is less than the sand deposited annually by the world's rivers, in some areas the removal is surpassing replenishment rates, UNEP said.The South China Sea, the North Sea and the east coast of the United States are among the areas where the most dredging has occurred, said Arnaud Vander Velpen, a sand industry and data analytics officer with the University of Geneva.China, the Netherlands, the United States and Belgium are among the countries most active in the sector, he said.(Reuters

The February 2024 edition of Marine Technology Reporter is focused on Oceanographic topics and technologies.
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