Broadband News

Map showing location of the current 2D and recent 3D surveys with blocks available in the 12th round. (Image: CGG)

CGG Completes 2D Survey Offshore Gabon

French-based geophysical services company CGG said it has completed acquisition of 9,800 km long-offset broadband 2D multi-client seismic survey in the highly prospective Gabon South Basin.Fast-track data sets will be delivered in batches from the end of April, giving interested oil companies sufficient time to understand offshore petroleum systems and appraise blocks offered in Gabon’s 12th offshore licensing round planned for September 2019.This modern data set will help define the full extent of existing and new plays in the region. It will also aid in understanding the thickness variations

Martin McDonald, Senior Vice President, ROV Division, Oceaneering International.
Courtesy of Oceaneering International

One-on-One with Martin McDonald, SVP, ROV Division, Oceaneering

.” The E-ROV is a resident, battery-powered ROV that will go subsea with a surface buoy. It’s a work class electric vehicle with a hydraulic power pack to support its manipulator functions, and it is controlled remotely from our onshore mission support center with communications via the 4G broadband network, using a self-deployed surface buoy. We’re very proud of this achievement. Subsequent to the initial scope, we’ve been awarded a three-year contract with options from the same customer, where the E-ROV will be deployed in a variety of locations and work scopes, servicing multiple

(Photo: OceanAlpha)

OceanAlpha Launches 5G Unmanned Vehicle

operation of the hydrological survey, water quality sampling and monitoring, environmental law enforcement and other water ecological environment monitoring and supervision by effectively enhances data accuracy, reduces costs and improves work efficiency,” Zhang said.At the conference, a live Broadband IoT demo showcased the unmanned boat operating over a 4G network. the OceanAlpha 5G vehicle was set in a pool outside the exhibition hall, while visitors could issue an automatic driving instruction to the boat from inside the exhibition hall, and drive the unmanned boat remotely through the console

Image: Searcher Seismic

Searcher Seismic Acquires Triok

Searcher Seismic, in cooperation with BGP, has completed the acquisition of the Triok broadband non-exclusive 2D seismic survey in the Northern Basins of Papua New Guinea.Following the acquisition of the Solomon Sea non-exclusive 2D in the northern basins of Papua New Guinea, the Triok broadband non-exclusive 2D seismic survey consists of 3,845 km (2,389 mi) of 2D long-offset, high-resolution, broadband seismic and offers regional coverage of the Cape Vogel basin and Huon Gulf.Andrew Weller, Asia-Pacific Manager for Searcher Seismic, said the survey will be the key to unlock several questions and

(Image: CGG / TGS)

CGG and TGS Partner for Greater Castberg Survey

;s advanced imaging technology,” said Sophie Zurquiyah, CEO, CGG. “This unique solution enables our clients to delineate shallow-to-intermediate depth targets in the Barents Sea, which are not resolved by conventional methods.“The new survey will add to CGG’s library of modern broadband multi-client data in the Barents Sea, an excellent resource for optimizing the discovery and development of hydrocarbons.&rdquo

This slice, at a depth of 595 m through the Q model, clearly highlights the extent of the Peon gas field (image courtesy of CGG Multi-Client & New Ventures)

High-End Seismic Imaging Solves Shallow Gas Challenges

greater clarity to Northern Viking GrabenCGG has recently completed seismic depth imaging of its entire Northern Viking Graben multi-client survey, in the Norwegian North Sea. The latest visco-acoustic (“Q”) velocity modeling and seismic imaging technologies have been applied to BroadSeis broadband variable-depth streamer field data, acquired between 2014 and 2016. The final output forms a contiguous data volume covering 35,400 km².The Northern Viking Graben, like many other areas around the globe, contains a wide range of localized near-surface geological anomalies – with shallow

(Image courtesy of SBGS)

Seismic From Below

the seismic sources and the seabed receivers, 4-component (4-C) sensors – results in better seismic data quality than can be acquired with towed streamers,” said Midenet. “Ocean bottom data acquired with geophones and hydrophones, first described in the 1950s, was the original marine broadband acquisition technique and was used extensively in the 1980s, predating towed streamer broadband methods by more than 20 years. The combination of vector (geophone) and scalar (hydrophone) sensors allows the down-going reflection from the sea surface, known as the sea surface ghost, to be removed

(Image: Nautel)

Canada's Halifax-Class Frigates Get a Sonar Upgrade

;Canada.The upgraded sensors will offer the RCN an improved ability to detect and track underwater threats utilizing advanced Sonar amplifiers and transducers designed and manufactured by Nautel.As part of the hull-mounted sonar upgrade program, Nautel will supply NS72-36 sonar amplifiers and Mk II broadband transducers. According to Nautel, its NS Series Sonar amplifiers, developed in Canada, are the most modern designs available today. When combined with Nautel’s latest Mk II broadband transducers, NS Series amplifiers can be deployed to create the most advanced transmit chain for underwater

(Image: Kongsberg)

Mapping the Future

Kongsberg Maritime in conjunction with FFI, the Norwegian Defence Research Establishment and builds on a history of collaborative development projects, including the HUGIN AUV System.In addition to the the autonomy controller solution, SEA-KIT will be equipped with Kongsberg Maritime’s Maritime Broadband Radio (MBR) for high bandwidth direct communication to shore, SeaPath 135 with an MRU5+ for heading, attitude and positioning and the AIS300 Automatic Positioning System. KONGSBERG’s HiPAP acoustic positioning and control system will be used to supervise AUV operations

MainOne Cable System Map (Image: TE SubCom)

MainOne Cable System to Extend to Francophone Region

current digital transformation of the region by ushering in affordable connectivity to drive economic development. Our objective remains focused on bridging the digital divide between West Africa and the rest of the world. We have, and will continue to, invest significantly in projects to accelerate broadband access to help local businesses address the challenges they face procuring capacity at competitive rates. This extension of our subsea cable to Senegal and Cote D’Ivoire will further open up their international bandwidth markets, drive down costs and ultimately boost the economic and commercial

Location map for CGG’s rich-azimuth survey north-west of the Shetland Isles.
 (Photo: CGG)

CGG Deploys Two Vessels for Survey NW of Shetland

undershooting the volcanic intrusions and shallow unconformities present in the area. Two vessels, the Oceanic Vega and the Geo Caribbean, are being deployed. Each vessel operates triple sources using simultaneous source technology.The data will be processed in depth using CGG’s state-of-the-art broadband imaging technology, including advanced de-blending and Full-Waveform Inversion velocity modeling. The final data will be available in mid-2019

(Photo: Teledyne RD Instruments)

Teledyne RDI Improves DVL Bottom-tracking Range

and our 150 kHz DVLs can bottom track to over 500m, but these products are too large to use on the emerging smaller class vehicles.“TRDI’s 30 years of Doppler signal processing experience has allowed us to develop a new algorithm that combines the strengths of narrowband with our proven broadband signal processing, giving us the unique combination of the improved range of a narrowband signal, with the proven reliable bottom detection of a broadband signal.”Teledyne RDI’s DVLs provide precision navigation solutions for subsea vehicles. The new XRT option is available with new

Cefas’ Wave Glider Lyra sailing away on the start of the 41 day mission after being deployed from RV Cefas Endeavour. (Photo: Cefas)

Scientists Complete 1700km Autonomous Acoustics Mission

for collecting data on fish stocks.The U.K.’s Centre for Environment, Fisheries and Aquaculture Science (Cefas) and U.S. based Liquid Robotics, A Boeing Company, have deployed, tested and recovered a remotely piloted Wave Glider, which was adapted to allow scientists to collect high quality broadband fisheries acoustics data.As part of a multi-vehicle mission under the U.K. NERC/Defra funded AlterEco project, the Wave Glider called Lyra was deployed in the central North Sea about 270km north-east of Newcastle-upon-Tyne, U.K. by RV Cefas Endeavour. She spent 41 days at sea, repeatedly covering

(L-R) Phil Middleton, Seatronics Group MD, with Andy Williamson from Underseasense (Photo: Seatronics)

Seatronics Doubles Its Stock of R2 Sonic Multibeam Systems

farm sector have seen a rise in hydrographic surveys all around the world. Responding to this increased need and to serve their customers with innovative solutions, Seatronics have more than doubled their stockholding of Sonic 2024 systems with an investment in excess of $2 million.The Sonic 2024 is a broadband - wideband high resolution shallow water multibeam echosounder. It provides user selectable operating frequencies between 170kHz and 450kHz with 1Hz increment, and optional 700 kHz.  It offers a beamwidth of 0.3° x 0.6° at 700kHz. In addition, like all R2Sonic MBES, the Sonic 2024

Knifefish mine countermeasure UUV (Photo: General Dynamics Mission Systems)

Knifefish UUV Completes Sea Acceptance Tests

that can be quickly and efficiently modified to accommodate a wide range of missions.Knifefish operates as an off-board sensor capable of autonomously detecting, classifying and identifying buried, bottom and volume mines in high-clutter environments in a single pass. The UUV's low frequency broadband synthetic aperture sonar enables long range, high confidence mine identification

(Photo: RS AQUA)

High-tech Sensors Advance Tsunami Monitoring

five new RBRquartz³ BPRs (bottom pressure recorders) from oceanographic instrumentation manufacturer RBR for a long-term research program with the Insitu Marine Laboratory for Geosystems Research (iMARL). The iMARL is a network of deep sea ocean sensors including ocean bottom seismographs (OBS), broadband acoustic sensors, and RBRquartz³ BPRs for measuring absolute water pressure and temperature at the ocean floor. Strapped to deep sea landers, the iMARL network will allow for the detection of offshore earthquakes and offshore storms, as well as noise in the ocean and biologically generated

(File photo: Polarcus)

Polarcus Scores Two Seismic Survey Projects

Marine geophysical company Polarcus Limited announced it has secured two offshore seismic survey projects.The company said it has entered into a contract for a two-month broadband 3D marine seismic acquisition project in Australia that will commence immediately.Polarcus also received a letter of award for an XArray 3D marine seismic acquisition project in Asia Pacific. The two-month project is slated to begin immediately after the Australian project.“These awards in Asia Pacific provide important visibility, extending a regional campaign for Polarcus well into Q3 2018,” Polarcus said.

Marine Technology Magazine Cover Apr 2019 - Ocean Energy: Oil, Wind & Tidal

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