June - SCOUTING AROUND FOR ULTRA HIGH RESOLUTION AUV SIDE SCAN ...

SCOUTING AROUND FOR

ULTRA HIGH RESOLUTION AUV SIDE SCAN

By: Regan Lipinski
Training Manager, Marine Sonic Technology, Ltd.

The need for systems that can provide visibility in the world of underwater research is exploding. Many fields of study are expanding, with new missions and applications where underwater visibility is required multiplying every day. In the past, most of the general public had no idea what it took to do underwater rescue or research or what a complicated task working under the water is. It is now fairly routine for the general public to see images of the types of technology used in underwater search and research in the media. Terms like Autonomous Underwater Vehicle (AUV), Unmanned Underwater Vehicle (UUV), Remotely Operated Vehicle (ROV) and Side Scan Sonar are becoming more familiar after the horrific events of Flight 370 in Malaysia and other over-water tragedies. Over the last several months, as the search unfolds before our eyes on prime time television, it is hard not to pay attention as scientists proposed many “new” technologies and strategies to locate the Boeing 777.

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June - DITCHING “DUMB” DATA Abandoning Archaic Deliveries for Smarter, ...

DITCHING “DUMB” DATA Abandoning Archaic Deliveries for Smarter, Cost-Effective GIS Tools

By: Taylor Brown, DOF Subsea

The public abandoned paper maps in favor of Geographic Information Systems (GIS), so why hasn’t the survey industry? The preferred source of driving directions has moved from paper maps to GPS units to smartphones in under two decades, yet seabed survey data are still delivered in outdated formats. Archaic legacy data formats hidden amid complex file structures are delivered alongside paper charts and drawings that collect dust on clients’ shelves. While determining infrastructure locations on the seafloor could be done using objective analysis, it is still completed by matching pixels to a color ramp. As GIS platforms for smarter data deliveries are readily available, Exploration and Production (E&P) companies and survey contractors should move from archaic deliveries formats to simpler, more cost-effective, intelligent methods.

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June Editorial Focus - TECHNOLOGY OF THE DEEPSEA CHALLENGE EXPEDITION ...

TECHNOLOGY OF THE 

DEEPSEA CHALLENGE 

EXPEDITION

(Part 1 of 3: The Landers)

By: Kevin Hardy, Global Ocean Design LLC; Bruce Sutphen, Sutphen Marine LLC; and James Cameron, Earthship Productions LLC

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May- Multiple Magnetometer Sensor Arrays and their Applications in Mar ...

Multiple Magnetometer Sensor Arrays and their Applications in Marine Environmental Surveys

By: Mikhail Tchernychev, Ross Johnson, and Jeff Johnston, Geometrics, Inc.

Introduction

A magnetometer is a device used to measure the magnetic field at a point in space. All magnetometers can be divided into two groups — vector magnetometers measure the magnetic field in terms of its components (fluxgate and SQUIDs are examples) while total field magnetometers such as Proton Precession, Overhauser and Optically Pumped Quantum magnetometers measure the scalar (directionless) value of the field. The total field magnetometers measure the amplitude of the magnetic field regardless of the magnetometer orientation. All magnetometers are passive devices that do not rely on energizing the nearby environment.

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April: Going Deep... With Fully-Integrated ROV Solutions ...

GOING DEEP...

With Fully-Integrated ROV Solutions

BY: Stepinoff And Associates

There is something magical about the mystery of the ocean depths and the sophisticated technology, skill, navigational nuances, and logistical magic that all come into play as ROVs travel under water, often in hostile environments.

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April: Advances in AUV Pipeline Inspection ...

Advances in AUV Pipeline Inspection

By: Lou Dennis and Sekhar Tangirala, Lockheed Martin Corporation

There is a growing need for advancement in Autonomous Underwater Vehicle (AUV) technology and capabilities to perform effective deepwater pipeline inspections, allowing operators to take full advantage of the efficiencies to be gained through the use of autonomous inspection systems. Oil & Gas (O&G) companies are proactively developing new specifications for AUV pipeline inspection surveys that will necessitate AUV suppliers and survey service operators to enhance their existing capabilities. These advancements will provide superior data quality and result in improved integrity management of subsea pipeline assets while also reducing the dependency on expensive surface vessels.

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March: Deepwater Power Point provides a power point and fibre optics t ...

DEEPWATER POWER POINT PROVIDES A POWER POINT AND FIBRE OPTICS TO THE SEABED

By: Peter Mellor – Manager Ports Terminals and Marine Sciences, Worley Parsons

Industrial enterprises, scientific associations, and government organizations need to collect marine data to support critical missions for the digital oilfield, coastal security, and safety or at-risk environmental areas. Often, data needs to be collected from remote, isolated areas of the ocean. Users need a fully managed solution that enables the real-time delivery of collected data, while being portable for re-deployment in subsequent locations — saving operational costs and reducing deployment timelines.

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March: PUSHING LIMITS: Innovative Solutions for High Bandwidth, Long D ...

PUSHING LIMITS:

Innovative Solutions for High Bandwidth, Long Distance Subsea Data Transmission

By: Michael Greene, New Product Development Engineer, and Gregory Eskridge, New Product Development Engineer Teledyne Oil and Gas

As the sensors used in the subsea environment increase in number and capability, the amount of data transmitted by these sensors continue to increase. Some of the approaches to provide data transfer bandwidth include electrical modems, electrical DSL, electrical CAN bus, electrical Ethernet, and optical Ethernet. Conventional electrical modems can transmit data over long distances. This technology is by far the most mature for subsea use. However, the maximum data transfer rates achievable are insufficient for technologies that demand data transfer rates in excess of 20 kbps.

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February: UV Irradiation: A New Kind of Antifoulant ...

UV IRRADIATION: A New Kind of Antifoulant

By: Chris Bueley, AML Oceanographic

AML Oceanographic has developed a novel UV-based antifouling technology for use on virtually any submerged surface. The performance of the system in reducing fouling induced measurement error on in-situ conductivity cells is comparable to the leading chemical-based system, as demonstrated in a described trial.

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January: M3 Sonar: Multiple Modes for Multiple Applications ...

M3 Sonar: Multiple Modes for Multiple Applications

By: Sarah Pilkington, Kongsberg Mesotech Ltd.

Underwater surveys, obstacle detection, and harbor security inspections are only a few of the applications challenged by high currents, lack of visibility, and other subsea hazards. For over 40 years, Kongsberg Mesotech acoustic systems have been successfully used worldwide to augment diver inspections and underwater visualization operations. The use of multibeam technology enables faster operations than traditional scanning sonar and provides a large coverage area for data acquisition and a real-time data display. Kongsberg Mesotech’s M3 Sonar can be used for both imaging and profiling applications. The M3 Sonar delivers high-resolution and easy-to-interpret images by combining the rapid refresh rate of conventional multibeam sonar with image quality comparable to scanning sonar and is suitable for a variety of deployment platforms, including remotely operated vehicles (ROVs), pole mounted on a vessel, or mounted on a tripod. Exclusive to the M3 Sonar is the multimode capability that, in addition to standard imaging and profiling, features a unique enhanced image quality (eIQ) mode designed to provide image quality comparable to high-resolution scanning sonars. With four pre-defined operating modes, the M3 Sonar delivers application capability not found in any other system. Operating Modes 1. Imaging: long-range navigation with a fast update rate 2. Enhanced Image Quality (eIQ): greatest image quality from a short range with a slightly slower update rate 3. ROV Navigation: automatically selects eIQ or imaging based on range 4. Profiling: optimized split beam profiling for bathymetric surveys.

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Editorial:
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