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The Hydrographic Society In Scotland
Data Processing, GIS & Reporting Martin Berry – Data Centre Manager Fugro Aberdeen
www.fugro.com
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The Hydrographic Society In Scotland
Introduction Martin Berry Data Centre Manager Fugro
• 1983 – 2004
• Geoteam UK Limited • Wimpol Survey - Fugro • Seafloor Surveys International • International Subsea Mapping
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The Hydrographic Society In Scotland
Martin Berry Data Centre Manager Fugro
• 1983 – 2004
• Geoteam UK Limited • Wimpol Survey - Fugro • Seafloor Surveys International • International Subsea Mapping
Introduction
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The Hydrographic Society In Scotland
Martin Berry Data Centre Manager Fugro
• 1983 – 2004
• Geoteam UK Limited • Wimpol Survey - Fugro • Seafloor Surveys International • International Subsea Mapping
• 2003 – 2008
• Fugro Survey Limited CAD/GIS Manager
• 2008 – Present
• Fugro- Data Centre Manager
Introduction
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The Hydrographic Society In Scotland
Goldeneye
Historic look at workflow
for Recon Survey
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• Circa 1996 - In the first instance a Geophysical Pipeline Route Survey would be conducted to accurately establish seabed and sub-bottom conditions. This would be conducted using a purpose-built dedicated Geophysical Survey Vessel
• Routes are based on Seabed Characteristics and design needs • Various sensors are utilised • Echo sounder • Sonar • Profilers • Magnetometers
Goldeneye – Pipeline Reconnaissance
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The Hydrographic Society In Scotland
Goldeneye – Pipeline Reconnaissance
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The Hydrographic Society In Scotland
• Circa 1996 - In the first instance a Geophysical Pipeline Route Survey would be conducted to accurately establish seabed and sub-bottom conditions. This would be conducted using a purpose-built dedicated Geophysical Survey Vessel
• Routes are based on Seabed Characteristics and design needs • Various sensors are utilised • Echo sounder • Sonar • Profilers • Magnetometers
Goldeneye – Pipeline Reconnaissance
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The Hydrographic Society In Scotland
• Circa 1996 - In the first instance a Geophysical Pipeline Route Survey would be conducted to accurately establish seabed and sub-bottom conditions. This would be conducted using a purpose-built dedicated Geophysical Survey Vessel
• Routes are based on Seabed Characteristics and design needs • Various sensors are utilised • Echo sounder • Sonar • Profilers • Magnetometers
• Navigation and positioning information is recorded, processed and later applied to data-sets
• These data-sets are interpreted to produce the final products
Goldeneye – Pipeline Reconnaissance
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The Hydrographic Society In Scotland
Goldeneye – Pipeline Reconnaissance
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The Hydrographic Society In Scotland
• Circa 1996 - In the first instance a Geophysical Pipeline Route Survey would be conducted to accurately establish seabed and sub-bottom conditions. This would be conducted using a purpose-built dedicated Geophysical Survey Vessel
• Routes are based on Seabed Characteristics and design needs • Various sensors are utilised • Echo sounder • Sonar • Profilers • Magnetometers
• Navigation and positioning information is recorded, processed and later applied to data-sets
• These data-sets are interpreted to produce the final products • At the time results typically presented within hard copy reports As Charts,
alongside written content and fly-sheets • Additionally the CAD data may be delivered in native formats (no GIS
deliverable)
Goldeneye – Pipeline Reconnaissance
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The Hydrographic Society In Scotland
Goldeneye
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The Hydrographic Society In Scotland
AQUISITION
INTERPRETATION
Goldeneye – Pipeline Reconnaissance
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The Hydrographic Society In Scotland
• Large duplication of effort and time consuming • Charts supersedes underlying data • Frequently undergo multiple changes • Easy to focus on how data “looks” • Rather than focus on the results
Goldeneye – Pipeline Reconnaissance
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How things have
changed
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• Oil and Gas (Survey) serviced exclusively by a CAD environment • Dominated by Bentley Microstation not AutoCAD (engineering product) • Paper products dominated • Over time the actual .dgn /.dwg files were delivered to client – was data used? • GIS not utilised
• Software used for processing data was slow with limited functionality • Interpretation was typically manual from paper records which had to be plotted
against a time or fix position • Large offshore teams • Delay before reporting can begin – after demobilisation of vessel
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• Software optimised distributed networks • Remote behind the boat reporting • More powerful faster processing
Goldeneye – TODAY?
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Goldeneye – TODAY Processing of hydrographic survey data is very CPU intensive with tens of thousands of calculations performed per second Most machines in an office environment are under-utilising the multiple cores in the CPU (generally only using Microsoft Office) Distributed processing allows machines on a network to work together to use under-utilised CPU cores The master machine will tender processing commands on the network and send data to specific machines for processing a task on a free CPU core Distributed processing results in a significant efficiency saving and is only limited by hardware used: more machines/CPUs = faster processing times
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Goldeneye – TODAY Traditionally, the CPU handles processing computations and the GPU handles the graphics Now however, the GPU can also handle processing computations. Software has to be specifically developed for this purpose and an appropriate graphics card is required
High-end CPUs have around 12 to 32 cores, for serial operations, whereas high-end GPUs have over 3000 smaller more efficient cores, for parallel operations GPU processing is good for performing the same task over and over again, e.g. MBES data cleaning, and results in a significant efficiency
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Goldeneye – TODAY Using advanced compression and transfer algorithms, hydrographic survey data can now be efficiently transferred from the vessel to office using VSAT This enabled the data processing team to be reduced in numbers on the vessel and a single data processor in the office can remotely process data from several vessels at the same time Using this method, for example, hull-mounted MBES and navigation data can be transferred from the vessel with as little as 100 kbps VSAT bandwidth
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Goldeneye – TODAY The logged data on the vessel is automatically monitored for new files Once detected the new files are automatically compressed and uploaded to the cloud while managing the other vessel data, e.g. communications The cloud is monitored for new files in the office which once detected are automatically downloaded and uncompressed ready for post-processing
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• Neural Networks • Machine Learning • Robotic Process Automation
Robotics “Find boulders”
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Goldeneye Pre-Lay Survey Today
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• What is a Pre-Lay Survey • Survey of the seabed along a pipeline/cable route immediately prior
to installation.
• Why do we need a Pre-Lay Survey Identify potential hazards or obstructions before laying/trenching of
pipelines or cables To further investigate previously found debris - Recon To establish existing seabed bathymetry and existing pipeline/cable
positions
• How do we do it ROVs are commonly used for Construction Pre-Lay surveys Cameras and Multi-beam are mounted on the ROV The ROV will fly along the design route acquiring data ROV Pilots will also use the scanning sonar in real time to locate
potential hazards If a hazard is detected the ROV may break off the line to inspect the
target
Potential hazards
Objectives of a Pre-Lay Survey
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Use GIS as your centric data model. Start with a map and add data - query append and make decisions
Goldeneye – Pre-Lay
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Online Eventing
Data Processing
and QC
SQL
Database
Client Deliverables
Offline Video
Review
Logged Survey Data
GIS?
Workflow
Web
Mapping
Desktop Users
GIS PORTAL
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• Use modern software which utilises robotics and GPU performance
Processing Work Flow
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Thereafter common deliverables supplied to the client are as follows:
Position Listings – provide seabed depth along the route Event Listings – provide details of the locations of all hazards
DTMs – provide the client with the overall terrain of the route
Data is usually charted
Client Deliverables
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BIG THINK
Son
arW
iz
AU
V P
hotoMosaic
CA
RIS
Requires vendors to climb on-board push data straight in – SSDM/PODS support
Fled
erm
aus
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• Moving Forward use GIS throughout asset lifespan • GIS used at Greenfield stage
• Rig Site Survey • Use the GIS data during Rig Move and Drilling • Platform Surveys • Route Survey
• GIS usage at Construction stage • Pre-lay • As-laid • Touch Down • OOS
• During annual inspections
GIS for Pipelines
