Deep-water Research Centre

Schlumberger has signed a joint cooperation agreement with the Universidade Federal do Rio de Janeiro (UFRJ) to build an international research centre on the university's campus. The agreement marks the first research and geosciences center to be located at UFRJ Technology Park. The partners will focus on research and development activities in the deep-water pre-salt environment.     The emphasis will be placed on the development of geosciences software for the exploration and production sector; new technologies to meet reservoir challenges in pre-salt environments; and the creation of a geophysical processing and interpretation Center of Excellence covering time-lapse seismic and... (read more)
2009-09-21 12:59:25

Deep-water Industry Event

The "mce Deepwater Development" 2009 technical conference is, for the first time, to be held in Copenhagen (Denmark). It features a packed technical programme and is supported by an exhibition showcasing the world's major companies operating within the deepwater sector.     Hosted by Maersk Oil and organised by Quest Offshore, this year's conference will see Maersk Oil's CEO, Thomas Thune Anderson, welcoming the international delegates and presenting the conference's keynote speech.   According to Quest Offshore, the current estimate of 2009 Global Deepwater Spend is USD164 billion, the oil price is hovering around USD40/bbl and major discoveries for example,... (read more)
2009-02-26 11:01:50

GEBCO and Deep Water

Data Assembler, Converter, Interpreter and Disseminator
GEBCO uses deepwater survey data to produce bathymetry maps and grids. Published maps appear complete but are in fact based on very little data. Only a portion of the deep data that could potentially be put to use is contributed to the public domain. All would benefit were more data submitted to data centres. BackgroundWhile the general public thinks that all the seafloor has been mapped and many hydrographers and ocean scientists accept published maps and datasets as faithful representations of the deep-sea floor, in reality only a small percentage of the seafloor has ever been directly measured; estimates range... (read more)
2007-03-02 12:00:00 Dave Monahan

Deep-water Coral Reefs

Acoustic recognition and geological setting
Cold water coral reefs, notably the stone coral Lophelia pertusa, have been found extensively in deep Arctic waters such as the Norwegian Sea. The use of multibeam echosounding, together with advanced visualisation and analysis tools, has been a key to many spectacular discoveries. The world's largest cold water coral reef - the Røst Reef - was mapped in detail in October 2002. Located in the dramatic setting of a large submarine slide, this provides an excellent example of how catastrophic geological processes can create special marine habitats. Another major reef complex - the Sula Reef - demonstrates how mounds select... (read more)
2008-01-01 01:00:00 Terje Thorsnes and Jan Helge Fosså

Deep-water Black-box Retrieval

A Game of Hunt-the-pinger Against the Clock
Restricted operating life, limited range and bearing ambiguity in deep water are the known limitations of current locator beacons mounted on aircraft. These problems raise important questions: what is the best method of locating existing pingers and what can replace them? In deep water, pinger detection equipment could be installed on a submarine. Alternatively, a transponder beacon can provide both range and bearing information, as well as demonstrate a significantly longer listening life. Although heavier and therefore not suitable for light aircraft, commercial aircraft could easily accommodate such beacons allowing easier retrieval of the aircraft black boxes. In the July/August... (read more)
2009-12-04 03:49:14

Multibeam Echosounder for Medium to Deep Water

The RESON SeaBat 7160 multibeam echosounder has been developed for marine exploration, seafloor habitat mapping and hydrographic charting in medium to deep water (3 to 3,000m). Equipped with X-Range, it provides improved system immunity to external noise. The system can operate in water depths of between 3 to 3,000 metres, offering up to 512 high-density equidistant beams with a selection of coverage modes including features such as variable and steerable swath, together with real-time pitch and roll stabilisation maximising useable swath and performance. The SeaBat 7160 also provides the collection of high-density water-column data all wrapped up in a processing... (read more)
2013-01-18 10:17:57

Successful Deep Water Trials Alistar 3000

Further to a series of demonstrations conducted offshore Toulon, France, in December 2005 and March 2006, ECA has just completed 10-day deep water trials of Alistar 3000 AUV in GoM (Gulf of Mexico) for BP America Production Company. This trial was carried out as part of the BP Exploration and Production Technology Group field trial programme. Alistar 3000 is an Autonomous Underwater Vehicle (AUV) able to carry out pre-programmed inspection missions in deep water without need of a physical link to the surface. The deep water trials took place with the local support of ECA's partner in the USA, Harvey... (read more)
2006-09-06 12:00:00

From Test Tank to Deep Water

Sub-sea inspection using autonomous underwater vehicle (SPINAV)
SPINAV is an ongoing Joint Industry Project that is moving cutting-edge autonomous inspection technology from proof-of-concept trials in the test tank (completed November 2004) to an offshore trial using an unmodified commercial work-class ROV or AUV of opportunity. This article reviews the background to the technology and discusses details of the development process and wet trials. The initial part of this ongoing project, SPINAV-1, the proof-of-concept trial had several sponsors: BP, Subsea7, Conoco-Philips and the UK Government Department of Trade and Industry. SPINAV-2, the offshore work-up project, is now underway; started in July 2005 and running for twelve months, it... (read more)
2008-01-01 01:00:00 Dr Kelvin Hamilton and Dr Jonathan Evans, SeeByte Ltd, Scotland

100th Deep-Water Multibeam Order

Kongsberg Maritime has received its 100th order for a deep-water multi-beam echosounder system, to be delivered in November 2009 to the U.S. Naval Oceanographic Office (NAVOCEANO). The contract, for delivery of an EM 122 (1° x 1°) is part of the multi-beam sonar system upgrade program for the U.S. Navy T-AGS 60 class survey vessels.   Kongsberg Maritime's first deep-water system, the EM 12, which was first delivered in 1990, was based on the design experience gained with the successful initial model, the EM 100 (95kHz). In 1993 a special 12kHz version was delivered based on a US tender for... (read more)
2009-06-30 03:08:37

Hydraulic Vibrocorer for Very Deep Water Use

OSIL (UK) has added a vibrocorer to its existing product range due to customer demand. The hydraulic system can be used as a stand-alone sediment corer or can be easily adapted to allow integration with subsea vehicles. The use of hydraulics opens the system up for use in very deep water in conjunction with a seabed hydraulic power pack. A range of systems are available depending on the specific application, offering from 2,500kg to over 7,000kg centrifugal force and each providing a well-structured core sample that retains the individual layers. The hydraulic model is based around the existing modular electrical vibrocorer,... (read more)
2015-12-01 11:28:26
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