IMCA Revises Subsea Metrology Guidance

Subsea metrology procedures are expanding rapidly to provide ever-higher-accuracy solutions, so the publication by the International Marine Contractors Association (IMCA) of a revised version of ‘Guidance on Subsea Metrology’ (IMCA S 019 Rev. 1) is both highly relevant and timely.   The objective of subsea metrology is to determine accurately the relative horizontal and vertical distance between subsea assets, as well as their relative heading and attitude. Most commonly this is for pipeline connections and the document uses this work as an example throughout. The information determined by subsea metrology is then used by pipeline engineers to design a connecting... (read more)
2017-10-04 01:13:59

Multi-million Dollar Digital Acoustics Contract

Nautronix have been awarded orders to supply NASDrill RS925 deepwater acoustic positioning systems for Noble Corporation's three new ultra-deepwater drillships due for delivery second and fourth quarters of 2013 and second quarter of 2014 respectively.     These new rigs will be constructed at Hyundai Heavy Industries shipyard in Ulsan, Korea and are based on a Hyundai Gusto P10000 design. The rigs will have DP-3 station keeping abilities and the ability to handle two complete BOP systems allowing for operation in water depths of up to 12,000 feet.   Nautronix received orders for their NASDrill RS925 systems through a well... (read more)
2011-07-29 11:18:53

Two Additional Gavia Offshore Surveyors for UTEC Survey

Teledyne Gavia from Iceland has received an order for two additional 1,000m depth-rated Gavia Offshore Surveyor Autonomous Underwater Vehicles (AUVs) to UTEC Survey (USA). The UTEC Gavia AUVs are fully equipped for geophysical surveys in near-shore environments out to 1,000 metres. The vehicles are fitted with swath bathymetry, sidescan sonar, subbottom profiler modules and a depth-rated camera with strobe lighting. The two most recent vehicle purchases come with the DVL aided ROVINS154 Inertial Navigation System module (iXBlue, France), providing a high accuracy INS in a package that is not of US origin so it does not automatically come under the... (read more)
2013-12-12 09:43:24

Kongsberg Adds Hydrographic Equipment to Portfolio

The EA440 singlebeam echosounder is developed for hydrographic use in shallow to medium-depth waters. It supports portable and hull-mounted sidescan and sub-bottom light for shallow waters. Kongsberg Maritime has also presented the portable acoustic positioning system µPAP (MicroPAP) for tracking ROVs, tow fish, divers and other subsea objects. With the EA440, users can cover several applications with a single system. Instead of running separate systems with syn­chronisation issues the EA440 can cover different applications simultaneously. Individual transducer channels may also be reprogrammed to use different frequency band. Up to eight high-power transceivers can operate simultaneously from the EA440 echo sounder.... (read more)
2015-08-03 10:32:24

Total Saves Time with Sonardyne Fusion 6G

Together with its construction and survey partners, French oil company Total, operator of the Egina oil field offshore Nigeria, has successfully installed a Fusion 6G subsea positioning network to support its development of the USD15 billion project. Supplied by Sonardyne International Ltd, UK, the acoustic technology specified for Egina, which is still ongoing, included a field-wide array of Compatt 6 seabed transponders that were deployed and made ready for work eight days ahead of schedule. Located 150km off the coast of Nigera, in water depths of up to 1,750m, the Egina field covers an area of around 500 square miles.... (read more)
2015-09-09 11:27:12

Underwater Positioning Systems and Transponders

Kongsberg Maritime has launched during OTC a new range of acoustic underwater positioning systems and transponders, designed to harness the power of 'Cymbal' signal processing protocol whilst also being backwards compatible with the HPR 400 protocol and analog transponders. Other systems on display at OTC include HiPAP 501/451/351/351P, which are the second generation acoustic underwater positioning system offering improved position accuracy, longer range capability and faster data telemetry.  The new cNODE series of transponders consists of three models: Maxi - a full size transponder with large battery capacity, floating collar and release mechanism, and long life operation, designed primarily for... (read more)
2010-05-04 11:57:45

Seatronics Invests in Kongsberg Maritime Technology

Kongsberg Maritime has announced the sale of an ROV HPR 408S system and associated transponders to the Seatronics Group. The system will be used to support the group’s deepwater positioning capability and ongoing rental operations. The system is designed to enable offshore construction ROVs to operate down to depths of 4000m in USBL and multi-user LBL modes. Multi-user mode allows multiple vessels and ROVs to accoustically poistion themselves very accurately using the same small transponder array, without interference. Offshore construction support vessels fitted with Kongsberg Maritime HPR 400 or HiPAP acoustic position reference systems are also able to take advantage... (read more)
2004-04-09 12:00:00

Zupt Last-minute Addition to OI

Not wanting to miss out on Oceanology International in London's ExCel Centre from 13 to 15 March 2012 after all, Zupt, USA, has recently confirmed it will be exhibiting its latest technology relating to inertial metrology and ROV communications at stand no. K15. Zupt’s C-PINS can save marine construction survey project time and money. The technology has delivered more than 26 inertial metrologies and has completed sparse LBL and USBL smoothing operations in West Africa, the North Sea, the Bahamas and the U.S. Gulf of Mexico. The Micro-TTU can solve ROV serial communication issues. Micro-TTU adds six channels to any... (read more)
2012-03-08 10:41:40

Compatt 5 for Gulf of Mexico

Equipment hire companies SES Inc. and Hydroquip have placed a major order with Sonardyne International for its latest generation LBL and USBL compatible transponder ‘Compatt 5’. The order for twenty Medium Frequency Compatt 5s was received from Houston-based SES, which is part-owned by Hydroquip. Delivery was made on 17th July. This is in anticipation of the significant demand expected for Compatt 5 within the region on a range of deepwater construction survey projects. Compatt 5 is based on a totally new electro-mechanical design and employs the latest acoustic signal processing technology. This new platform is designed to take Compatt forward,... (read more)
2003-10-23 12:00:00

Australasian Hydrographic Society

The AHS 2012 AGM was held on 27 September 2012 with the following office bearers being voted in: President: Alec MillettSecretary: Ron FurnessTreasurer: Steve Duffield East Australian Region The AHS/EAR 2012 AGM was also held on 27 September 2012 with the following office bearers being voted in: Chairman: John MaschkeSecretary: Dave GarforthTreasurer: Roger Harvey The EAR met on 13 November with ongoing discussions on the re-establishment of Cat A/B hydrographic training courses in Australia and/or New Zealand. West Australia Region The WAR has been busy with regular meetings, the last being held on 8 November with presentations from Sonardyne on... (read more)
2013-01-18 03:24:16
Search Filter