Fiber Optics

TE SubCom to Design and Deploy Google's New Cable System

Undersea communications technology firmTE SubCom, a TE Connectivity Ltd. company, announced it has been selected by Google as the supplier of its Dunant submarine cable system. The four-fiber pair cable system will span over 6,400km and will connect the East Coast of the United States to Europe, adding dedicated capacity to Google’s global network and will enable interconnection to other subsea infrastructure in the region.Sanjay Chowbey, president of TE SubCom, said the Dunant cable system will be built using SubCom’s A1 cable family, which is optimized for projects compatible with higher

New Model 810 Pneumatic and Hydraulic Industrial Fluid Rotary Union (Image: Moog Focal)

Moog Focal Rolls Out New Fluid Rotary Union

Moog Focal has unveiled its latest Pneumatic and Hydraulic Fluid Rotary Union (FRU). The Model 810 FRU is designed for industrial and marine applications where multiple fluid passes need to be transferred across a rotational interface. There are a number of design options, depending on the application. The standard Model 810 FRU is available with two or four threaded ports of size 1/2 or 3/4 inch. A 1/2 inch on-axis bore enables easy integration with an electrical slip ring, fiber optic rotary joint or both.The Model 810 utilizes sealed-for-life rolling element bearings, ideal for long endurance

Saab Seaeye’s Sabertooth hybrid ROV/AUV (Photo: Saab)

Unmanned Vehicles May Soon Take Up Residency Subsea

infrastructure for resident vehicles, regulation relating to unmanned vehicles, and skepticism and resistance to change. But, with a string of roadmaps in place, from vendors to operators and service providers, resident subsea vehicles are just a matter of time.(As published in the May 2018 edition of Marine Technology Reporter

(Photo: MMT)

AQUIND Interconnector Geophysical Survey Completed

Swedish based marine surveyor MMT has completed a geophysical seabed survey and delivered the final report for the proposed AQUIND Interconnector offshore cable route linking the British and French electric power grids.The survey, which commenced in November 2017, involved two of MMT’s high-tech vessels – M/V Franklin for offshore works and M/V Seabeam for nearshore works – and found no major obstacles to the proposed cable route between Portsmouth in the U.K. and the coastal region of Dieppe in France.“This is a major milestone in the development of AQUIND Interconnector

(Image: ABB)

Powering the Seafloor: Put a Socket in It

is ready and the applications are ready,” says Bugge. Reliability of this equipment will be key, but it’s coming. “It’s early days, but I think this energy revolution at the seabed is coming and it won’t be just for oil and gas.”(As published in the May 2018 edition of Marine Technology Reporter

The cable-laying vessel NKT Victoria at the Johan Sverdrup converter station at Haugsneset near Kårstø.(Photo: Øyvind Gravås - Woldcam / Statoil)

Efficient Cable Installation Slashes Emissions at Johan Sverdrup

The laying of the cable supplying Johan Sverdrup with power from shore started last week. This helps make the North Sea giant one of the oil and gas fields with the lowest CO2 emissions worldwide.On Wednesday last week the cable-laying vessel NKT Victoria began laying the cables that will supply the Johan Sverdrup field with power from shore.The starting point was the Johan Sverdrup converter station at Haugsneset near Kårstø, and by the end of May the vessel will have laid nearly 200 kilometers of power cables out to the field in the North Sea.Bundled with the power cables, a fiber-optic

(Photo: MacArtney)

MacArtney Underwater Technology Turns 40

network of 25 companies spread across the globe.Since its foundation in 1978, the MacArtney Group has been supplying underwater technology solutions to operators and developers within several industries. The cornerstones of the MacArtney fields of operation are oil and gas, ocean science, defence, marine renewable energy, civil engineering and fishery. Possessing vast engineering competences, the company manufactures high-quality products, fully integrated systems and innovative custom solutions, from design to installation, supported by training, after-sales service and local workshops. Its competences

(Photo: OceanGate)

iXblue Equips Manned Submersible for Titanic Mission

and operates in the low frequency band for deep sea tracking operations. To communicate with Posidonia during each dive, Titan is equipped with iXblue’s MT8 compact low-frequency transponder.“Everyone at iXblue is very excited to be part of the Titanic Survey Expedition.” States Marine Slingue, Sales Director at iXblue. “We are thankful for the renewed trust OceanGate puts in us after a first partnership back in 2016 for the survey of the iconic wreck of Andrea Doria. It is a real vote of confidence for our products to be chosen again -- especially to explore and help survey

The EMO DOMINO-7 fibre optic multiplexer (MUX) installed on an ROV.  (Photo: MacArtney)

MacArtney: Custom EMO Multiplexer

Upgrading the subsea survey and camera interfaces of an ROV represents the primary purpose of the MUX having been deployed in Singapore. The requirements for reliable transmission of large amounts of data and video from ROVs, ROTVs, ocean observatories and instrumentation packages are contantly being sharpened. Gathering high-quality data from the deep sea is an im¬mense undertaking, which calls for ensuring that multiple sensor and equipment types work in perfect unison and that all data are efficiently transmitted to the surface for analysis.    Custom ROV MUX System A custom

Fig.3. Located at 200 m depth, two ADCPs (150 kHz, 5-beam 600 kHz) are installed on the fixed platform of an SPM. (Credit: NSF-OOI/UW/ISS; Dive R1832, VISIONS ‘15 expedition)

ADCPs: Action in OOI's Cabled Observatory

; Sound waves propagate through the water column so echoes are returned and processed from many depths. The vertical range of this collection of measurements - called a profile of ocean current velocities - is greater for lower frequency sound waves.   Introduction Thanks to a spirited cadre of marine scientists and engineers, high-tech ocean observatories are now operational. These sites provide a continuous presence in the ocean for sustained and interactive observing. Many combine innovative infrastructure with multi-discipline marine sensors.   Installed at various depths, these observatorie

Rijkswaterstaat awards Afsluitdijk project to Levvel Photo Van Oord

Afsluitdijk project awarded to Levvel Consortium

Rijkswaterstaat (part of the Dutch Ministry of Infrastructure and the Environment and responsible for the design, construction, management and maintenance of the main infrastructure facilities in the Netherlands) has awarded the Afsluitdijk project to the Levvel consortium. This joint venture is formed by Van Oord Aberdeen Infrastructure Partners B.V. (46%), BAM PPP PGGM Infrastructure Coöperatie U.A. (46%) and RebelValley B.V. (8%). Levvel will be responsible for design, build, finance and 25 years maintenance of the strengthened Afsluitdijk. Construction works are expected to start in the

Sonardyne 6G Wideband Acoustics allows simultaneous operations by  multiple platforms. (Courtesy Sonardyne International)

Digital Ocean: Making Subsea Data More Easily Accessible

The digital ocean is a reality and U.K.-based digital communications marine technology firm Sonardyne International Ltd is one of the organizations driving innovation to enable the extension of electronic and communications connectivity into the subsea domain. Based on a presentation given by Tom Rooney, Lead Trainer at Sonardyne, at the Digital Ocean conference held in Galway, Ireland in June 2017, this article describes the current state of play in the subsea acoustics and optical communications technology field, presents examples of the many ways these technologies are being applied and considers

The SeaCat autonomous underwater vehicle (Photo: ATLAS MARIDAN)

ATLAS MARIDAN to Offer AUV Rental Services

ATLAS MARIDAN ApS. of Rungsted Kyst (Denmark), a subsidiary of the German naval systems supplier ATLAS ELEKTRONIK, has launched an autonomous underwater vehicle (AUV) rental service. The opportunity to rent ATLAS ELEKTRONIK’s latest unmanned underwater technology shall support customers within the offshore oil and gas, renewable energy, UxO and naval markets.   The AUV SeaCat has recently finalized its serial maturity process and concluded certifications covering a wide range of requirements for system robustness, environmental conditions, navigational accuracy and transport safety.

Photo: WFN Strategies

WFN: Cable Route Survey Support for Kativik

Strategies has been awarded a contract by Kativik Regional Government, a supramunicipal body with jurisdiction over the territory of Québec situated north of the 55th parallel of Canada, to provide cable route survey support for the proposed Eastern Arctic Undersea Fiber Optic Network (EAUFON) submarine telecoms cable system.   EAUFON is a planned submarine cable with landing points at multiple communities in Canada’s Nunavik region.  The EAUFON submarine cable system has an initial Ready For Service date of 2020 with multiple extensions planned subsequently. Although final

(Image: TE)

New In-line Dry-mate Connector from TE

dry-mate connectors are built from the same reliable technology used in multi-fiber optic HP/HT feedthrough systems, so engineers can expect a familiar interface that’s compatible with TE’s established DEUTSCH dry-mate connector,” said Jérémy Calac, product manager for marine oil & gas. “They are also optimized for offshore renewables systems, subsea flexibles and umbilical terminations.” According to TE, the DEUTSCH high density in-line connectors offer a cost-effective solution for multichannel fiber optic management, packing 12 to 24 fiber optic

(Photo: Deep Sea Mooring)

Deep Sea Mooring Bags Quadrant Contract

project scope and engineering consultancy coordinated out of Perth, will enable Quadrant to have access to DSM and Vryhof Anchors’ portfolio of pre-lay mooring solutions that include chains, fiber ropes, anchors, connectors, buoyancy and handling equipment. Offshore personnel, back deck services, marine representatives and all equipment will be deployed from DSM’s Karratha, West Australia base.   The GSF Development Driller 1 rig was built in 2005 and is a sixth generation semi-submersible with a maximum water depth of 7,500 feet and drilling depth of 37,500 feet

(Photo: BIRNS)

BIRNS Introduces 1.25mm Ferrule

BIRNS now offering two optical ferrule sizes for ultra high density connector configurations   BIRNS, Inc. has added a new 1.25mm optical ferrule for its BIRNS Millennium connector series—a high performance, high density dry-mate connector range suitable for applications to 6km depth. The series can be used with molded or oil-filled cables in straight or 90° configurations and is available in high and low voltage, coax, fiber-optic, and hybrids of electro-coax, electro-optical and electro-opto-mechanical formats.   The 1.25mm ferrule provides single-mode and multi-mode options

Image: Teledyne

Teledyne Releases CAN Bus Active Flying Lead Configurations

Teledyne Oil & Gas has added the CAN bus communication protocol to its Active Flying Lead product family. The subsea oil and gas industry has standardized to "fault tolerant" CAN bus communications for sensors and other subsea controls. This variation has a limited transmission distance for single node or sensor systems of only 40 meters. Teledyne has recently qualified three new configurations that extends the range of the CAN bus signal to up to 5,000 meters. The Active Flying Lead product line is characterized by integrating specialized electronics into qualified highly reliable

Photo: DSM

DSM Begins Work for New Mooring Contract

Deep Sea Mooring (DSM), a Vryhof company, has commenced operations as part of a newly awarded contract to provide pre-lay mooring products and services to the Deepsea Bergen semisubmersible drilling rig on the Norwegian Continental Shelf. Austrian oil & gas company OMV has deployed the semi-submersible rig to support drilling activities in the region.   With operations coordinated out of DSM’s equipment base in Mongstad, Norway the pre-lay mooring Equipment and services provided will include chain, fiber ropes, anchors, connectors, buoyancy and handling equipment as well as mobilization

FMC clamp

Subsea Infrastructure: Challenges & Solutions

As offshore oil and gas reserves become ever more difficult and costly to recover, the demand for innovative technology has never been greater. Joe Orrell, managing director at RED Engineering, considers some of the challenges in subsea infrastructure design and the role of fast track engineering solutions.   The offshore oil and gas industry, even in times of low prices and abundant supply, is driven by the almost relentless search for new fields to replace those coming towards the end of their natural productive lives. Often this forces exploration in ever more challenging environments and

(Photo: Global Marine)

SEAIOCMA Extends Cable Maintenance Contract

 Offshore and subsea services company Global Marine, part of the Global Marine Group (GMG), said its maintenance contract with SEAIOCMA (South East Asia and Indian Ocean Cable Maintenance Agreement) has been extended for five-years, running to the end of 2022.   The SEAIOCMA maintenance zone agreement, which is a cooperative club managed by 46 cable owners, provides the repair of submarine cables that carry international telecommunications traffic. SEAIOCMA spans the area between Djibouti in the west, Perth in the south, Guam in the east and the northern tip of Taiwan. This is the third

3D model of a subsea dry mate connector (Photo: Rovco)

Rovco Trials 3D Visualization Tech

Subsea cable survey and inspection work for the world’s largest and most technologically advanced offshore renewables test site, Wave Hub, was completed by U.K. based Rovco.   The inspection program included the first commercial trial of Rovco’s 3D visualization technology to create scaled, high resolution models of subsea infrastructure with millimeter accuracy.   Rovco also delivered a detailed bathymetric survey utilizing a multibeam echosounder (MBES), alongside a remotely operated vehicle (ROV) video inspection with ultra-short baseline tracking for Wave Hub’s

Fig.1. Sodebo Ultim arrives home after Thomas Coville’s record-breaking trip. (Photo Credit: Team Sodebo)

Around the World in 49 Days

Sodebo to improve boat performance. As well as directly reporting leeway to the helmsman, the DVL data helped with evaluating refinements to the boat’s foils and dagger boards.   Observing Remote Parts of the Oceans Vessels such as Sodebo Ultim that sail through remote seas can collect new marine information about poorly known regions. The French Ocean Agency IFREMER partnered with Team Sodebo on this project. These researchers plan to analyze water currents observed from Sodebo Ultim. Part of the work will be comparing these direct observations with currents inferred from satellite altimetry

TX4849 Slip Ring (Photo: Trolex Engineering)

Trolex Expands Its Range of Slip Rings

 Trolex Engineering, a designer and manufacturer of Electrical Slip Ring Units, has introduced the TX4849 Slip Ring.   The Weather Protected Slip Ring is a compact 316L stainless steel unit which has a cover diameter of only 72mm. The unit can house up to 16 rings, rated 12 Amps, 1000V per ring. In addition to electrical passes, the unit can also be combined with a fiber optic rotary joint, both single and multimode options.   Suitable for a variety of applications including ROVs, winches and seismic surveying, the unit has been design tested to meet IP66 ratings, Trolex said.

Anglerfish is a miniature deep-sea LED flasher designed to aid in vehicle recovery (Photo: Arctic Rays)

New Mini LED Flasher for AUVs and Gliders

Arctic Rays, LLC has released to the wider market its robust miniature self-contained deep-sea LED flasher designed to aid in vehicle recovery. Anglerfish is a 380 lumen LED with 360 degree collimating optic can be seen from a distance as far away as 5 nautical miles from any direction.   Its built-in daylight sensor prevents operation during daylight. Standard output is a double burst every 2 seconds, customizable upon request The Anglerfish easily mounts to vehicle masts and connects to power and control via a standard three pin connector.   Anglerfish is currently being used on the

An image shot from a ROV shows a spare parts box from USS Indianapolis on the floor of the Pacific Ocean in more than 16,000 feet of water. (Photo courtesy of Paul G. Allen)

The Quest to Find and Explore USS Indianapolis

. In the early hours of July 30, 1945, having just completed a secret mission to deliver materials from California for the first operational atomic bomb, “Little Boy” to a naval base on the Pacific island Tinian, Indianapolis was en route from Guam to Leyte when it was torpedoed by Japanese submarine I-58.   Indianapolis sank quickly – reportedly in just 12 minutes – leaving little time for the crew to deploy lifeboats or for an emergency signal to be sent. It is estimated that 800 of the nearly 1,200 Sailors and Marines on board survived the sinking, but a communication error

Moog Focal Small Form-Factor Pluggable (SFP) Optical Transceiver (Image: Moog Focal)

Moog Focal Introduces a New Optical Transceiver

, several existing 1 Gbps PT systems currently deployed in the field can now be upgraded to support higher bandwidth applications. Pressure tolerant products need to be enclosed in a subsea junction box typically filled with oil. Focal said it has tested compatibility with many typical oils used in the marine industry and continues to validate additional fluids as new applications emerge.   In addition to pressure tolerant slip rings and fiber joints for use subsea, Moog Focal supplies pressure tolerant solutions for composite video, HD video, Ethernet and serial channels, with thousands of products

TE Connectivity SubCom’s CS Global Sentinel (Photo: TE SubCom)

Hawaiki Transpacific Cable Set for Installation

The undersea fiber-optic cable and equipment for the 14,000 km Hawaiki transpacific cable system have been manufactured and are in the final stages of being loaded aboard cable laying vessels for deployment to beginning in early October.   The Hawaiki submarine cable system, owned and developed Hawaiki Submarine Cable LP, will link Australia and New Zealand to the mainland United States, as well as Hawaii and American Samoa, with options to expand to additional South Pacific islands. The carrier-neutral cable system was co-developed by New Zealand-based entrepreneurs Sir Eion Edgar, Malcolm

TE SubCom Launches New NOC Solution

into operational flow. Cable operators depending on the long-term viability of their networks will now have global 24x7x365 monitoring coverage and both high-level and regional visibility into their networks’ status.   SubCom’s NOC solution has already been selected for the Monet Submarine Cable, a 10,556km cable that is owned and operated by Algar Telecom (a Brazilian telecom company and ISP), Angola Cables (a multinational telecom company operating in the wholesale market), ANTEL (the Uruguayan telecom company) and Google. In the U.S., this new 6-fiber-pair cable system was landed

(Photo: Global Marine Group)

Global Marine Group Extends UK Footprint

Offshore engineering services provider Global Marine Group (GMG) has expanded its operations base in the United Kingdom to include the Port of Blyth, Northumberland.   Blyth, a modern, well-specified port, has emerged as a major support base for U.K. offshore energy projects. Operating from the Port of Blyth, both of GMG’s two business units, CWind, which provides services to the offshore wind industry, and Global Marine, which provides fiber optic cable solutions to multiple sectors, will be able to offer regionally-focused support, resulting in faster mobilization, greater flexibility

TE to Showcase New Wet-mate Connector

TE Connectivity (TE) said it will display a selection of products from its underwater portfolio at its SEACON booth at Offshore Europe in Aberdeen, September 5-8, 2017. Among its many connector systems, TE will specifically feature the new HydraElectric wet-mate connector.   TE’s SEACON portfolio includes more than 2,500 underwater electrical and fiber optic connectors for complete submerged connectivity systems. As the oil and gas industry continues to face new challenges with deeper drilling and harsher temperatures and pressures, TE said it continues to develop new technologies with

Cutaway view of Cyclops 2 showing the main components of the pressure vessel and external fairing (Photo: OceanGate)

Manned Submersible Built to Explore Titanic Shipwreck

The titanium and carbon fiber wound pressure vessel for a new deep sea manned submersibles has been constructed in preparation for the first human exploration of the Titanic shipwreck since 2005.   Once completed Cyclops 2 will be the latest addition to the fleet of OceanGate, Inc., capable of reaching more than 50 percent of the ocean to increase human exploration of the undersea world.   “Construction of Cyclops 2 is a significant step in advancing human exploration of the ocean. When completed, it will be the only privately owned submersible in the world that can take five

CS Recorder – a dynamically positioned, cable installation vessel, capable of simultaneous lay and burial utilizing plough systems and the Q1000 jet trenching ROV.(Photo courtesy of GMG)

GMG Secures Cable Contract for Rampion Offshore Wind Farm

Global Marine Group (GMG) announced that it has been awarded a contract from E.ON to install a fibre optic cable at the Rampion Offshore Wind Farm, under construction 13km off the coast of Sussex, UK.   Upon completion the cable will run from the shore to an offshore substation, providing a vital communications link for this major wind farm. The installation is expected to be completed later this month.   CWind, which is part of the GMG and is responsible for delivering the Company’s power capabilities, will execute the contract and will utilize the Group’s capable assets

SMD’s existing workshop at Wallsend on the banks of the River Tyne (Photo: SMD)

SMD Expands Its Servicing Operations

Remotely operated vehicles (ROV) manufacturer Soil Machine Dynamics (SMD) said it is relocating its servicing operations to the Port of Tyne’s Tyne Dock estate in South Shields, U.K.    The Tyneside based manufacturing company’s head office and heavy production facility will remain in Wallsend and SMD will continue to manufacture ROVs at the Tyne Tunnel Trading Estate in North Shields. Servicing, maintenance and training operations will transfer to the new facility at the Port of Tyne.   The firm will occupy a 23,000sqft unit at Tyne Dock, which has been modified to

(Photo: Fisheries and Oceans Canada)

Scientists Explore Canada’s Deep Ocean Seamounts

conditions tens of kilometers away from their summit.   From July 18 to August 1, 2017, researchers onboard the Canadian Coast Guard Ship John P. Tully will survey and collect the first-ever underwater footage of the Union and Dellwood seamounts, gathering insight into these valuable Canadian marine habitats, and helping to gain a better understanding of other regional seamounts for which data is sparse. Data gathered during this mission will also help to inform the planning and management of the future Marine Protected Area.   According to Fisheries and Oceans Canada, the research will

Alan Whitebook (Photo: BIRNS)

BIRNS Grows Its Sales Team

Manufacturer of ISO 9001:2008, NAVSEA PRO-020-certifed lighting and connector systems BIRNS, Inc. has expanded its sales team with the appointments of Alan Whitebook and Jenny Ong.   As sales Applications Engineer, Whitebook will be responsible for the active sale of the company’s advanced deep submergence connectors and cable assemblies (electrical, coaxial, optical, electro-optical and electro-opto-mechanical) to worldwide users, comprising a combination of new prospects and existing customers. Whitebook brings more than 20 years of sales and design of military, aerospace and commercial

(Image: Tampnet)

Tampnet Awarded Johan Sverdrup Contract

Tampnet, provider of high-capacity, low-latency based telecommunication infrastructure and services for the offshore oil and gas industry, was awarded a contract by Statoil for connecting the Johan Sverdrup field to their existing 2,500km subsea fiber infrastructure in the North Sea. This contract and turn-key project will optimize and strengthen the telecommunication infrastructure for this modern and digitalized field development.   Tampnet said its offshore network is built with continuous improvement and expansion in mind. Hence, throughout the North Sea the company has a number of potential

Image: Rolls-Royce

Innovative Subsea Crane Ordered for RSV Conversion

 Brazilian ship owning company CBO’s vessel CBO Manoella is currently being retrofitted from an offshore platform supply vessel (PSV) into a ROV Support Vessel (RSV).   As part of the conversion project, CBO has assigned Rolls-Royce to equip the vessel with a new patented hybrid dual draglink (DDC) subsea crane, marking the first installation of a subsea crane designed to be able to use either fiber or steel wire rope.   Marcelo Martins, CBO, Technical Director said, “This is one of two vessels CBO is now retrofitting from PSVs to RSVs, and we are very satisfied about

Image: Kraken Sonar

ThunderFish AUV Program Gets $745,000 Boost

in underwater robotics.”   “Technological innovations in sensors, high performance computing and robotics now enable next generation underwater vehicles that are highly autonomous, cost effective, light weight and easier to operate. We look forward to continuing to develop advanced marine technologies and products to meet the ever-evolving demands of our growing customer base.”   RDC is a provincial Crown corporation responsible for improving Newfoundland and Labrador’s research and development (R&D) performance. RDC works with R&D stakeholders including

(Photo: South Bay Cable)

South Bay Cable Celebrates 60

commitment to quality and customer service, allow South Bay Cable to experience steady growth. With increased production capabilities and strong footholds in both commercial and military markets, South Bay looks forward to future challenges.      (As published in the May 2017 edition of Marine Technology Reporter

IKM mobilization crew and Statoil representatives after installation at Snorre B (Photo: IKM Subsea)

IKM Reports Progress at Snorre B and Visund

IKM Subsea was awarded a ROV services contract for the fields Visund and Snorre B in the North Sea last August.    The contract provides for the testing and installation of an electrical, permanently seabed installed RROV (Residential - ROV). The system will interface with IKMS’s Onshore Control Center via Tampnet, a dedicated fiber-based network system for the platforms in question. The systems are equally design to operate on the 4G mobile broadband system.   “We are proud that Statoil has given IKM the thrust and opportunity to deliver ROV service in the form of an

NKT Names New Cable-laying Vessel NKT Victoria

The new NKT cable-laying vessel was named NKT Victoria at a ceremony at the power cable plant in Karlskrona, Sweden. The act was carried out by the regional Governor of Blekinge and marks the starting point of a new era of NKT turnkey high-voltage offshore cable system capabilities.   NKT took delivery of the new vessel on April 10, 2017. NKT Victoria lays high-voltage offshore cables with high precision based on e.g. DP3 (Dynamic Positioning) capability and a remotely operated vehicle using cameras and sonar. If not incorporated in the power cable itself, fiber optic cables for monitoring

Photo of what seaweed community looks like after introduction of invasive seaweed (Dasysiphonia japonica) (Photo: Kristen Mello/UNH)

Sea Habitats Altered by More Invasive Seaweed-Study

Walking along the beaches of New England, it is easy to spot large amounts of a fine red seaweed clogging the coastline, the result of sweeping changes in the marine environment occurring beneath the water.   To further investigate, researchers at the University of New Hampshire looked at seaweed populations over the last 30 years in the Southwestern Gulf of Maine and found the once predominant and towering kelp seaweed beds are declining and more invasive, shrub-like species have taken their place, altering the look of the ocean floor and the base of the marine food chain.   In the study

Image: TE Connectivity

TE Debuts New Wet-mate Connector

construction with 4, 7 or 12 electrical circuits enables many configurations for use in electrical, signal and distribution networks in subsea control systems.    TE’s HydraElectric connector supports upcoming industry standards for subsea control system power distribution. Rugged marine systems require connectors with high speed communication capabilities and the ability to manage a range of operating currents. Qualified for both 1500 VDC and 1000 VAC pin to pin, the HydraElectric connector enables copper-based high speed Ethernet and supports the industry standards for Ethernet

Cable Repair Restores Power Scilly to Islanders

CWind’s specialist cable installation vessel, the C.S. Sovereign, has completed a power cable repair to reconnect the Isles of Scilly to mainland electricity.   The power cable was damaged late February by an anchor, a common occurrence with telecommunications and power cables. The C.S. Sovereign, along with her crew of cable engineers and specialist cable equipment and machinery, was contracted for the repair and rapidly mobilized.   Using remotely operated underwater vehicles (ROV) deployed from the back deck of the C.S. Sovereign, the vessel and technical team onboard surveyed

Oceaneering Bags Anadarko Umbilical Contract

Oceaneering International, Inc. said it has secured a contract from Anadarko Petroleum Corporation to supply the umbilical for Anadarko’s Constellation subsea tieback in the U.S. Gulf of Mexico.   The contract is for a dynamic and static electro-hydraulic steel tube control umbilical, and associated hardware. Oceaneering plans to design and manufacture the umbilical at its facility in Panama City, Fla.   The control umbilical for the Constellation project is expected to be used to transmit hydraulic control fluid and chemicals, as well as provide the electrical power and fiber

Image: © Theerapong / Adobe Stock

To Create a Sustainable Future – Digitalize Offshore Energy

U.K. Engineering and Physical Sciences Research Council and a $1.2 million contribution from Dong Energy, Siemens Wind, GE Energy Solutions, Scottish Power Energy Networks, the Offshore Renewable Energy Catapult, Hydrasun, Nova Innovation, British Approvals Service for Cables, JDR Cables and the European Marine Energy Centre.   The Holistic Operation and Maintenance for Energy from Offshore Wind Farms (Home-Offshore) team will include scientists and engineers from Manchester, Warwick, Cranfield, Durham and Heriot-Watt universities. Over the next three years, Home-Offshore will create an advanced

Photo: Resen Waves

Buoy Harnesses Wave Energy to Power Instruments at Sea

A new buoy from Danish company Resen Waves harnesses wave energy to provide continuous power and real time data connectivity to autonomous instruments and machinery in the oceans as a plug and play solution.   While instruments and machinery in the sea have traditionally been powered by batteries, PV or diesel generators, this typically requires regular ship operation to replace batteries or supply of fuel and maintain diesel generators. This is not always possible due to weather and can become costly, meaning power is often economized by cutting back on data transmission, which limits the

MacArtney EMO Nano Mux and topside (Photo: Forum Subsea Rentals)

Forum Brings Multiplexer Technology to Rental Market

Forum Subsea Rentals, a Forum Energy Technologies business, has announced that new multiplexer video and data acquisition technology is available to their global rental market following significant investment in MacArtney’s EMO range. The acquisition of DOMINO-7 Mk II and NANO-MUX multiplexers has been made in response to a growing demand for compact, lightweight designs which deliver enhanced operational efficiencies while supporting a complex array of subsea sensors. The investment not only expands Forum’s extensive range of multiplexers, it brings the newest kit - the NANO-MUX- to

Photo courtesy of Hydro Group

Hydro Group Completes MeyGen Contract

cable up to the nacelle, including the dynamic cable, the in-board connection system and the mechanical loading system, transmitting a power output of 1.5MW at 4.0kV per turbine and incorporating fibre optic links.   Mr Whyte continued: “As offshore installation costs are the highest in any marine infrastructure, minimising those costs has been a strong focus for us. We design our systems to mate and de-mate (connect and disconnect) in less than one hour to ensure offshore installation cost is reduced.   “Further to this, Hydro Group’s system is designed for minimal maintenance

Photo: Jawaharlal Nehru Port Trust

JNPT Gets Radiological Detection Equipment at Exit Gates

 The Jawaharlal Nehru Port Trust (JNPT) in Mumbai has become the first major port in the country to install radiological detection equipment (RDE) at all its exit road and rail gates.   An official press release said the Marine Department of the port had taken up the project and the work was awarded to the public sector Electronic Corporation of India (ECIL) in 2012 at a total cost of Rs. 23.324 crore.   Twenty-eight  Vehicle Monitor Systems have been installed at the Road, Rail, Exit Gates.  Out of these 11  are at North Gate Complex, 3  at the South Gate Complex

Photo: BIRNS

SoCal Tech Focus: BIRNS

Oxnard, Calif. based BIRNS, Inc. opened in 1954, and has been serving the global marine industry ever since with high performance lighting and connector products.The technological advancements in the field of cable assembly development have been rapid and exciting in the last decade in particular. BIRNS has been creating new connectivity solutions that provide immense performance characteristics in relatively small packages. In its flagship connector line, the BIRNS Millennium series, BIRNS customers are able to rely on a 6km open face rated assemblies that combine high and low voltage electrical

Figure 1: TE Connectivity’s SEACON 24/48 Channel HydraLight Wet Mate connector for optical subsea distribution systems. (Image: TE Connectivity)

Fiber-Optic Connector Technology for O&G Ops

may have generous lead-ins to guide the mating halves together.   Connecting Traditional Packaging to Subsea Applications To a great extent, subsea fiber optic connectors use new ways of packaging tried-and-true technologies, rather than radically new and unproven approaches. TE Connectivity Marine Oil & Gas adapts technologies that were well-established for telecom, network, aerospace and military applications to subsea applications. Subsea connector technology relies on ultra physical contact (UPC) and, more recently, angled physical contact (APC) for better performance (especially with

Image courtesy of Lori Johnston, RMS Titanic Expedition 2003, NOAA-OE.

Manned Sub to Survey Titanic Wreckage

A new mission will send the first manned submersible to the Titanic wreck since 2005.   The mission will see a survey expedition team use the latest subsea imaging technology and a newly built manned submersible to assess the condition of the shipwreck and document artifacts in the debris field. The OceanGate Expeditions exploration team will conduct annual surveys of the wreck in collaboration with experts from the Advanced Imaging and Visualization Laboratory AIVL at the Woods Hole Oceanographic Institution as part of an ongoing long-term study to document the current condition of the Titanic

Hydro Group Chris Westren, business development manager with Graham Wilkie, head of global development (photo: Hydro Group)

Hydro Group Grows Australian Network

subsea cable and connector specialist Hydro Group plc has partnered with MacTaggart Scott Australia as the firm increases its positioning in the region.    The partnership is focused on consolidating Hydro Group’s current work on the Royal Australian Navy Collins Class Submarines and to extend its services to aid the Australian capability for Future Submarine and Future Frigate. Additionally, the company will offer its expertise in specific marine cabling systems.    Complementing the work Hydro Group undertakes, MacTaggart Scott provides solutions from analysis

WHOI scientists used deep-sea vehicles, including Sentry to locate the voyage data recorder (above) from the El Faro on the seafloor 15,000 feet deep. The VDR offers clues to understand why the ship tragically sank in 2015, killing 33 crew members aboard. (Photo: NTSB)

Why Did the El Faro Sink?

Deep-sea vehicles locate data recorder on the seafloor   On October 1, 2015, the 790-foot cargo ship El Faro sank near the Bahamas during Hurricane Joaquin. All 33 crew members died in the tragedy. The ship was equipped with a voyage data recorder, or VDR, that could reveal clues to understand what happened, but it was lost in the depths.   The VDR was mounted on the mast on the ship’s navigation bridge. A search expedition mounted in October located the wreck and discovered that the bridge had separated from the hull. Days later, when the search team located the bridge, the mast

The SEA drymate connector (Photo: SEA)

Drymate Connector Aids Wave & Tidal Development

Marine energy facility EMEC provides the hard infrastructure necessary to test wave and tidal energy prototypes at sea. The electricity produced at EMEC’s test sites is fed into an onshore substation through subsea cables, and is then connected into the national power grid.    Connected to the subsea end of EMEC’s cable, SEA’s Drymate Connector provides pressure balanced make and break connectivity. This enables rapid connection, proven in operation at the EMEC test site.     The connector also includes termination using a Partial Discharge (PD) free, testable

(Photo: SULIS Aquatic Technologies)

Atlantic Canada Profiles: SULIS

; Fully-corrected 100-degree ultra wide-angle field of view (diagonal) Large 1-inch sensor for increased light sensitivity 20-megapixel stills capture Full manual controls, including a broadcast-quality control panel.   (As published in the January/February 2017 edition of Marine Technology Reporter

The Rayfin Autonomous Machine Vision System. (Photo: SubC Imaging)

Atlantic Canada Profiles: SubC Imaging

. SubC has patents pending around the viewing medium, involving stitching the videos together, to create a 360 spherical view around the ROV. Multiple clients can simultaneously digitally pan, tilt and zoom within the spherical view.     (As published in the January/February edition of Marine Technology Reporter

Photo: Meller Optics

Sapphire Windows Meet Harsh Subsea Requirements

Custom fabricated sapphire windows that can withstand extreme pressures and the rigors of harsh subsea applications while providing optimum visibility are available from Meller Optics, Inc. of Providence, Rhode Island. Meller Sapphire Windows are ideal for subsea UAV applications requiring a clear, hard optical material that can withstand high pressures to 10,000 psi and resist salt water, chemicals and fast moving particles. Featuring Mohs 9 hardness which is second only to diamond, they can be manufactured to specification in a wide range of sizes with varying thicknesses, mounting profiles, steps

Marine Technology Magazine Cover Jun 2018 - Underwater Defense

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