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The Advance of New ROV Conveyed Geotechnical Acquisition Tools - “Going Where No Man Has Gone Before” Subsea UK Expo February 2014
• Founded Newcastle 2009 • Subsea geotechnical engineering support services and
robotic technology
UTEC Geomarine Snapshot
Newcastle, Bath, Singapore Geomarine Founders
Markets and Capabilities
Construction,
Decommissioning Support
Engineering, Consultancy, Procedures
Site Selection and Appraisal
Technology and Innovation
Survey Management
A Full Range of Geotechnical Services
Oilfield
Renewable Energy
Telecom
Minerals
Images courtesy Geomarine, Canyon
Subsea Geotech – Design Challenges
Subsea Process Structures
• Lateral and axial capacity • Earthquake/Seismic Liquefaction • Touchdown instability/skating • Skirt Penetration
Critical Need for Seabed Soils Data in Top 3m
Subsea Geotech – Design Challenges
• Advanced lateral and axial response parameters • Specialist Trenching Analysis • Backfill, thermal and upheaval buckling • Design of secondary stabilization systems
Critical Need for Seabed Soils Data in Top 3m
Pipelines
Subsea Geotech – Design Challenges
Complex response including • Depth of penetration, • Weight of pipeline; • Strength of seabed soil
Critical Need for Seabed Soils Data in Top 3m
Subsea Geotech – Design Challenges
Images courtesy Deepocean, Canyon, IHC EB
Critical Need for Seabed Soils Data in Top 3m
Trenching
Subsea Geotech – Design Challenges
Confined Access
• Drill Mud Cuttings Survey • IMR • New Tie-Ins / J-tube • Excavation and Dredge • De-commissioning
Critical Need for Seabed Soils Data in Top 3m
Introducing ROV’s Robots in Industry Est. ~1M Industrial Robots*
60% in Automotive Production*
From Space, Factory to Ocean
*EU Figure
Images courtesy Oceaneering
A Typical Day at Work ROV originally human diver mimic ISO 13628-8 now standardizes many ROV
interfaces in subsea oilfield equipment General survey, inspection and
intervention tasks Increasingly sophisticated work packages
Introducing ROV’s
ROV Meets Diver!
ROV Controls Wellhead ROV Drills a Geotechnical Borehole
Images: Machin
ROV’s, Robotics Increasing Role
Recent Advances in Last 10 years
Images: Machin, Fugro, Published Magazine Covers
geoROVTM
Introducing geoROVTM
• ROV-conveyed seabed testing unit (IP
Protected)
• High Precision fixed rod CPT to 5m,
Sampling to 1m.
• Based around the proven concept of the
Cone Penetration Test (CPT).
• Easy interface with a standard work class
ROV of opportunity.
• Additional ROV-conveyed tools under
development….
geoROVTM
• Developed in 2009
• Innovative Thruster Device
• Capacity 1.5Te (each, can be
combined)
• Handles Range of Rod Sizes
• Fixed Rod has Advantages Compared
to Coiled Tube Systems !
Introducing geoROVTM
CPT - Why
Cone Penetration Test – developed by the Dutch in the 1950s to investigate soil conditions
Measured parameters (tip, sleeve
and pore pressure) and derived parameters such as friction ratio (sleeve/tip)
CPT – Why?
The geoROV is divided into a number of individual units: 1. The CPT cone, friction reducer and rods
(including flylead) 2. The drive unit (including depth encoder) 3. Subsea electronics pod 4. Hydraulics 5. Acquisition and processing software NOTE: Further detail on each of these 5 items is available within the geoROVTM Inteface Manual
geoROVTM - The System
geoROVTM - The System
1. Cone and friction reducer
2. The drive unit (incl. motor and depth encoder)
geoROVTM - The System
3. Subsea electronics pod Connection point for 12-24V power supply Connection to CPT cone Connection to depth encoder
4. Hydraulics (3 lines) Pressure line Return line Drain line All connected to the WROV
geoROVTM Track Record of 22 Projects: • North Sea • Gulf of Mexico • SE Asia • Australia
geoROVTM - The System
geoROVTM - The System
geoROVTM - The System
• The system can be operational alongside a conventional work class ROV in a matter of hours
• Allows performance of a large quantity of CPT tests rapidly and without the requirement to return to deck
• Also performs T-bars and Piston Samples
geoREACT skid - REACTION
geoROVTM working for BP/Subsea7 with geoREACT suction anchor skid
geoROVTM development programme
geoROVTM
geoREACT
geoROV-e
geoVCPT
geoROV-plus
New all-electric geoROVe will integrate with vibro-corer as “geoVCPT”. A compact, cost-effective and easy-to-deploy seabed geotechnical solution. Further future enhancements are planned.
Today
April 2014
2015
?
Integrated Survey Solutions
Geotechnical – geoVCPT Geophysics - AUV
Conclusions - Integrated Marine Survey Improved Quality, Reduced Durations and Costs
Vessel of Oppotunity
Simultaneous Operations Enabled
Other geotechnical research
Other Geotechnical Tools
eg Seabed Drilling
Systems.
New foundation and anchoring
solutions: • Remotely drilled micropiles
• Pipeline stabilization anchors
Images courtesy Canyon, In-house
