OSIL Giant Piston Corer for CSIRO

The Commonwealth Scientific and Industrial Research Organisation (CSIRO) in Australia have purchased a 24m Giant Piston Corer system for the RV Investigator from global marine sediment coring experts Ocean Scientific International Ltd (OSIL).

The modular deep sea sediment coring system comprises four 6m-long barrels, a stainless steel head with removable lead weights and a mechanical trigger arm with 1m long pilot core. The system has been specified with deck stands, deck storage for the head and barrels and a comprehensive package of tools and spares.

The OSIL Giant Piston Corer systems can achieve recovery rates of over 95% in soft sediments and provides a more complete, longer and less disturbed sample than traditional gravity coring systems owing to the unique integral piston, which reduces internal friction and prevents plugging.

 Piston Corers are one of the most important basic tools used in the study of marine sediments, and OSIL offers customisable systems (including Launch and Recovery Systems and Winches) from 4m to 60m in length. Ocean Scientific International Ltd. have a vast wealth of knowledge and experience in designing, planning and installing customised coring systems, and can pair the system with a variety of different handling systems to suit the existing vessel layout, equipment and available deck space.

OSIL are experts in the manufacture, global supply and operation of sediment corers up to full ocean depth, with particular experience in the oil and gas and marine mining industries and a worldwide customer base that covers a wide range of sectors including offshore renewable energy, coastal engineering, ports and harbours, oil and gas, aquaculture, water and utilities, academia, research and statutory monitoring.

Modified Multiple Corers

The Multiple Corer is universally acknowledged as being the only way of reliably collecting a truly undisturbed sediment sample from the seabed with its ability to consistently collect up to 12 high quality samples simultaneously, including the sediment-water interface and benthic fauna, meaning it is the primary corer for environmental impact assessment worldwide. The sample preservation is achieved through hydrostatically damping to control the speed of descent of the core tubes into the sediment.

 

 

 

 

 

 

 

Variations to the standard multiple corer design are available from Ocean Scientific International Ltd. to accommodate customer requests for longer sample lengths, and to allow for more compact transportation constraints. OSIL can extend the corer frame to offer an increased sample tube length from the standard 600mm, (most recently for a sample tube length of 1200mm to provide a sediment sample 1000mm long and 200mm of overlying supernatant water), and the corers can easily be fitted with core tubes of varying diameters by swapping out the mounting assembly. The frame of the corer can also be split in two to facilitate shipments where height restrictions are a known issue.

 

 

 

 

 

 

 

The system is constructed from stainless steel and features detachable core assemblies, which enables the core tubes (or if necessary the entire core tube assembly) to be removed from the corer for analysis or storage. The core tubes are sealed top and bottom once the sample has been taken, allowing rapid retrieval of the corer without jeopardizing sample integrity. Delivery times for the corers and spares are low, meaning last minute cruises can be catered for and systems can be kept in constant use for many years.

 

 

 

 

 

OSIL have an abundance of global experience in the construction and operation of a wide range of sediment coring equipment, including the industry standard Multi Corer and the unique Giant Piston Corer which is capable of achieving cores up to 60m in length.  OSIL also offer a full design, build and implementation service for all of their heavy offshore equipment.

 

 

 

 

 

 

 

For further information or sales enquiries please contact: sales@osil.com or call +44 (0) 2392 488 240.

Complete Oil Spill Monitoring solutions for vulnerable areas

Global environmental monitoring experts Ocean Scientific International Ltd (OSIL) produce oil spill monitoring solutions for remote areas for both aquatic and terrestrial applications where there is a concern over the potential for exposure to hydrocarbons.

OSIL build and install systems including oil spill monitoring buoys that are capable of detecting and monitoring surface sheens, oil in water monitoring buoys that can identify and quantify crude oil and refined fuels present in the water column using submersible sensors, and land-based non-contact oil spill detection systems. These structures can detect a variety of hydrocarbon based substances, and can be set up to ignore other materials that fluoresce in the same wavelength.

Real time data from these monitoring systems can be transmitted via GSM, UHF radio and satellite to a base station and can be displayed online using the OSIL data to web service, or can be integrated into the clients own computer systems, providing users with a variety of alarm options including email and text alerts, audible alarms or visual indicators such as flashing lights.  The systems can also be equipped with additional sensors depending on customer requirements.

The Oil Spill monitoring buoys and land-based systems utilise a real time non-contact hydrocarbon sensor, which is equipped with a pulsed UV LED beam and optical photo-detector with on-board software to enable detection of oil spills autonomously and immediately alert the users to any changes to protect vulnerable areas day and night, even under harsh weather conditions.

The Oil in Water buoy systems are equipped with submersible hydrocarbon sensors that can be positioned anywhere in the water column using the mooring systems themselves.

The systems are available for a variety of platforms, with OSIL engineers providing customers with an installation service complete with full training in the operation and maintenance of the equipment and on-going system support.

 

For further information or sales enquiries please contact: sales@osil.com or call +44 (0) 2392 488 240.

Box Corer T-Bar System now available from OSIL

A sophisticated T-bar mini-penetrometer for exclusive in-field seabed strength profiling of box core samples is now available from globally renowned environmental monitoring experts Ocean Scientific International Ltd (OSIL).

 

 

 

 

 

 

The T-bar penetrometer measures the resistance of sediment to continuous penetration at a slow steady rate using a cylindrical rod (T-bar) at the end of a perpendicular push rod or thruster and, uniquely, is small enough to fit on to the top of a box corer sample box immediately on its recovery on-deck to allow for on-site sampling on the back of the vessel.

 

Using axial load, dual axis tilt and friction sleeve sensors the system can provide a real time display that records penetration length, penetration resistance and inclination from the vertical for every millimetre of penetration at 2cm/s, and also stores the data for later analysis. The system can be fitted with a 25cm2 T-bar, 50cm2 T-bar, or 50cm2 Ball, depending on soil conditions.

 

Penetrometer testing is used to characterise the undrained shear strength and residual shear strength profiles of seabed soils, which provides valuable data for the positioning and design of a variety of subsea structures.

For further information or sales enquiries please contact: sales@osil.com or call +44 (0) 2392 488 240.

Another success for OSIL Giant Piston Corers

OSIL have successfully completed sea acceptance tests aboard the MV Xue Long 2 on an OSIL 22m Giant Piston Corer system in the South China Sea, proving the system with excellent sample recovery rates and ease of handling.  The system was installed and operated over a 10 day period with 2 OSIL engineers on board to provide training to local scientists.

 

The 22m system is installed into and deployed using a MacGregor Triplex handling system.  The corer was successfully deployed in deep water collecting over 85% sample recovery on its first deployment.  With further system tuning scientists are looking towards 95% plus recovery rates which are possible using the OSIL corer.  The unique piston design provides a more complete, longer and less disturbed sample than traditional gravity coring systems.

 

The Giant Piston Corer will be used by the Polar Research Institute of China (PRIC) for marine sediment studies.  The system is modular and easily assembled for rapid deployment in all conditions.  Due to its modular nature systems up to 60m in length are available from OSIL for use in soft sediments.

Oil Spill data direct to internet-enabled devices

Global marine monitoring systems manufacturers Ocean Scientific International Ltd (OSIL) can provide oil spill monitoring data and alarms directly to internet-enabled devices from any location with GSM/GPRS or satellite coverage.

The non-contact oil spill monitoring systems can be terrestrial or aquatic (using moored floating buoy platforms or fixed stations in shallow waters), and individual sensors can be networked together to cover multiple locations, with a single secure login to view all data.

 

The sensors are equipped with a pulsed UV LED beam and optical photo-detector with on-board software to enable immediate and autonomous detection of spills in vulnerable areas. The instruments can detect a variety of hydrocarbon based substances, even under harsh weather conditions, and can be set up to ignore other materials that fluoresce in the same wavelength. The systems can also be equipped with additional sensors (for water quality parameters, current monitoring, meteorological conditions, etc.).

The presentation of data can be easily configured with the powerful visualisation tools available on the data portal, and scheduled reports can be shared securely over ftp or email, or live data can be accessed using a password protectable direct URL link. Data security and privacy are assured with the highest levels of digital and physical security protecting the data centres

 

A unified alarm system allows notifications to be sent via email and text alert & the data portal will display the trigger data and alert on login. Alerts to issues with data collection and/or battery charging can also be incorporated.

 

OSIL engineers can provide customers with an installation service complete with full training in the operation and maintenance of the equipment and on-going system support.

For further information or sales enquiries please contact: sales@osil.com or call +44 (0) 2392 488 240.

OSIL showcase deep-sea mining data tools

Ocean Scientific International Ltd continues to consolidate their deep-sea scientific data collection tools for use in the environmental management of deep sea mining & impact assessment of other deep-sea activities.

 

OSIL’s product range now includes a 0.5m2 Giant box corer for bulk sampling in biological, chemical and geochemical applications. Box corers provide a large well-preserved sample in a range of sediment types with easy access to the substrate for sub sampling.

 

 

The OSIL Giant Piston corer can retrieve cores of up to 60m in length from soft sediments and muds, as the action of the internal piston reduced internal friction and reduces plugging, ultimately providing a less disturbed sample and making it an important tool in the study of marine sediments.

 

 

OSIL’s range of seabed sampling equipment is also extended to ROV tools. OSIL offer an ROV mounted sediment sampler for collecting (multiple) samples of virtually undisturbed sediment, including the sediment/water interface, and overlying supernatent water, in addition to a programmable automated water sampling system which can be married with a range of instruments to provide data on water quality parameters such as turbidity, dissolved oxygen or the presence of hydrocarbons.

 

 

All sampling equipment can be adapted to include the ability to sample for gas hydrates, and can be monitored visually using the OSIL deep-sea camera system with dimmable lights to allow for adjustments for different visibility conditions, which can include additional battery packs for extended seabed observation.

Increasing global demand for OSIL sediment grabs

Leading international oceanographic equipment manufacturers Ocean Scientific International Ltd (OSIL) are reporting a surge in global demand for specialist sediment grabs, particularly the spring-activated Smith McIntyre grab.

 

The Smith McIntyre grab provides more predictable penetration than other grab designs and uses an uncomplicated method of operation combined with a straightforward handling system.

 

OSIL offer a superior range of efficient and high-quality smaller capacity benthic grabs, including the ubiquitous Van Veen grab (available in various sizes and bucket configurations), with recent shipments going to academic and government organisations, as well as commercial outfits, for use on site investigations, baseline surveys, dredge monitoring and deep sea mining projects. All grabs are manufactured from 316 Stainless Steel with optional ballast weights available for increased penetration, as well as landing tables to aid sample recovery for more complex designs. Bucket sieves and sieving tables are also available.

 

The robust sediment grab range compliments OSIL’s catalogue of larger sediment sampling equipment.

 

 

 

 

 

 

 

For further information or sales enquiries please contact: sales@osil.com or call +44 (0) 2392 488 240.

OSIL buoy for EU-funded coastal erosion project

Global marine systems manufacturer Ocean Scientific International Ltd (OSIL) have supplied a  data buoy platform to the “ORION” joint research and development centre for use as a real-time monitoring station on an EU-funded project managing coastal erosion.

 

The Harmonized Coastal Corrosion Management Framework for Enhancing the Implementation of the Integrated Coastal Zone Management Protocol (HERMES) project required a platform with the ability to record a full profile of water column currents, tidal variations, wave parameters (significant wave height, wave period & propagation direction) & estimated suspended particulate matter (SPM) concentrations, with the data transmitted to a base station on land in real time, complete with software to analyse and process the data with a graphical display.

 

The OSIL Tern buoy offers a high visibility platform with a GPRS communication system ideally suited to the installation location given the proximity to the shore and a popular wreck diving site. The robust buoy is equipped with a seabed mounted Nortek AWAC to provide three-dimensional current profiles in cells with thicknesses from 0.25 to 4m. The ADCP is additionally furnished with a Prolog board for internal wave processing, and it can also be used to estimate suspended sediment loads by correlating the acoustic back scatter intensity to a site specific suspended sediment calibration.

 

The base station software provided by OSIL gives the end users extensive control over the data displayed from the monitoring buoy, highlighting OSIL’s ability to tailor individual buoy systems to meet specific project requirements.

For further information or sales enquiries please contact: sales@osil.com or call +44 (0) 2392 488 240.

OSIL’s expanding range of Data Buoys

Ocean Scientific International Ltd’s range of versatile data buoys is continually expanding to meet customers’ application requirements. OSIL offer flexible instrumentation platforms ideally suited for collection and measurement of oceanographic, meteorological (metocean) and water quality data parameters that are completely adaptable to meet any applications’ needs.

 

The selection of buoys on offer include: a 0.3m rapid deployment buoy that is ideal for emergency environmental monitoring; a 0.6m inshore monitoring buoy which can be quickly deployed and repositioned to allow the rapid completion of monitoring work; a highly modifiable 1.2m coastal monitoring buoy which has been used in a range of different operations from  dredge monitoring to oil spill monitoring with the addition on a non-contact hydrocarbon detector; a 1.9m metocean buoy which has been deployed in an assortment of highly dynamic environments, and a 2.6m metocean buoy that is suitable for deepwater coastal deployments and is in use on offshore wind farms.

 

The platform size is carefully selected to suit the deployment location and unique site conditions in addition to payload requirements such as weight and power consumption. Top frame designs can include grab rings and supports for personnel security on maintenance visits, secure service doors, a variety of solar panel combinations and a wide range of met sensors, in addition to a full complement of telemetry options.

 

OSIL supply a fully-equipped solution including platform, instrumentation, telemetry and software. On-site installation and end-user training can also be provided.

  

 

For further information or sales enquiries please contact: sales@osil.com or call +44 (0) 2392 488 240.