2. Driving Down Costs…
- Industry drivers
• Why is information required?
– Topside (60%) v subsea wells (30%)
• Cost of intervention
• Quality of information
• Significant opportunities
– Optimise production
– Reduce asset integrity costs
– Extend asset life
• What’s new fromWFS:
– Battery life: 6 months 5-15 yrs
– Wireless: Contactless lower ROV costs
– Distributed Control: Data information
– Real time control: Retrofit solutions
Access to data changes behaviours
IHS Cost Index: Poor Value
3. Source: SubseaWireless Group, 2013
Subsea Wireless
- Comparison of options
• There is no ‘silver
bullet’
• Select technology that
best matches
application
• Future of subsea
wireless is Hybrid
4. 4
Seatooth
- Platform Products and Integrated Systems
Seatooth S100
Bandwidth: 0.5-2.4kbps
Seawater Range: 5-15m
Air Range: 7-20m
Seatooth S300
Bandwidth: 25-150kbps
Seawater Range: 2-5m
Air Range: 4-10m
Seatooth S400
Bandwidth: 10-1000bps
Seawater Range: 25-40m
Air range: 150-250m
Seatooth S500
Bandwidth: 10-100Mbps
Seawater Range: 2-4cm
Air range: 10-25m
Seatooth PigTracker
Bandwidth: 5-10bps
Metal Range: 1-2”
Seawater range: 5m
Seatooth Video
Picture: CIF/5-10fps
Battery: up to 8 hrs
Seawater Range: 3-5m
Seatooth PipeLogger
Temp: 0-100DegC +/- 2DegC
Battery: up to 15 years
Seawater Range: 3-10m
Seatooth PipeLogger-UT
Wall Thickness: <250mm
UT Accuracy: 0.1mm
Battery: up to 15 years
Seawater Range: 3-10m
Seatooth PipeLogger-TI
Thermal Layer: up to 2”
Temp: 0-100DegC +/- 10%
Repeatability: 1DegC
Battery: up to 15 years
Seawater Range: 3-10m
Seatooth PipeLogger-UF
Flow: up to 25m/w
Accuracy:+/1 0.5%
Repeatability: +/1 0.15%
Battery: up to 5 years
Seawater Range: 3-10m
Seatooth CP
Voltage/Current sensor
Battery: up to 15 years
Seawater Range: 3-10m
Seatooth CTFM
Coiled Tube Fatigue
Management
Real time elastic fatigue
Battery: up to 30 days
5. Demonstrations
- Houston, Feb 16
• Seatooth PigTracker: wireless through-metal communications and
location for PIGs and ILI
• Seatooth PipeLogger: wireless retrofit temperature sensor/logger
• SeatoothWiPS: wireless integrated pressure sensor/data
logger
• Seatooth CTD: wireless CTD monitoring
• SeatoothVideo: wireless camera for complex IRM
• Seatronics Predator: Seatooth enabled inspection class ROV
Delta Subsea Test Tank, Houston
6. Business Cases
- Cost benefit of wireless
• Production Optimization/Flow assurance
– Retrofit well-head temperature sensor
– Water injection monitoring & control
– Slug monitoring & control
– Hydrate and wax monitoring & control
• Asset Integrity
– Riserless intervention fatigue monitoring
– Platform NDT monitoring
– Pipeline corrosion monitoring
– Mooring line fatigue monitoring
• IRM
– Wireless cameras for construction
– Wireless pressure sensors for PPC
7. • Description
– Wireless temperature logger located under concrete blanket
• Features
– Non-penetrating temperature sensor/logger
– 0-100DegC,40,000 data points
– Wireless communications through concrete blanket
– Up to 15 year battery life
• Applications
– Replacement for broken/damaged temperature sensors
– Process monitoring and control
• Driving out cost
– Removes need for subsea cabling
• Business case for retrofit temperature monitoring
Hard Wired v Wireless Saving
– Installed cost: $0.5-3m $150k >70%
– Expandability: n/a high
Retrofit Well head Temperature Monitor
-
HardwiredTemp Sensor Performance tests through
Concrete Blanket
Seatooth PipeLogger with Protective Cover
8. Water Injection Monitor and Control
- Flow Measurement using Ultrasonic Flow Sensor
• Description
– Retrofit wireless water injection flow management solution
• Features
– Seatooth PipeLogger UF (Ultrasonic Flow) measures water flow without penetration
– Wireless integration with SCM and/or control valves
– Distributed control: optimisation algorithms
• Applications
– Water injection optimisation in complex subsea wells
• Driving down cost…
– Increased production
– Deployed by mini-ROV
– Battery life up to 10 years
• Business case for optimisation of 4 subsea wells
Hard Wired v Wireless Saving
– Installed cost: $1.3 – 1.8m $0.4-0.8m >70%
– Expandability: n/a high
– Increased production: >5%
Seatooth PipeLogger- UF
9. WFS Wireless Slug Detection:
- Wireless Slug monitoring Solution
• Description
– Wireless retrofit slug monitoring solution using acoustic and vibration sensors
• Features
– Wireless sensor network integrated with SCM
– Slug Detection and discrimination tools
• Applications
– Slug monitoring and control
– Optimisation of aging wells where production is changing
– Warning system to protect infrastructure
• Driving down cost…
– Deployed/recovered by mini-ROV
– Up to 10 years between battery swaps
– Business case for slug management of shallow water well
– Installed cost: $0.5-1m
– Increased production/ROI: 5-10% / <3 months
– Expandability: high
Acoustic SensorSeatooth Controller
Slug characterisation
10. Wax/Hydrate Monitoring & Control
- Flow Measurement using Ultrasonic Flow Sensor
• Description
– Retrofit wax/hydrate monitoring & control solution
• Features
– Seatooth PipeLogger UF (Ultrasonic Flow) measures relative flow
without penetration
– Wireless integration with SCM and/or control valves
– Distributed control: optimisation algorithms
• Applications
– Wax/Hydrate characterisation, monitoring and control
• Driving down cost…
– Increased production
– Deployed by mini-ROV
– Battery life up to 10 years
• Business case for optimisation of 4 subsea wells
– Installed cost: $0.3-0.5m
– Expandability: high
– Increased production/ROI: target 5% / <3 months
Seatooth PipeLogger UF
11. • Description
– Retrofit real time stress, strain and elastic fatigue monitoring solution for CoiledTubing
• Features
– eFatigue software compliant with DNV RP-C203
– Dual redundant Seatooth PipeLoggers with integrated strain and acceleration sensors
• Applications
– Riserless intervention
– Pipeline pre-commissioning
– Conductor fatigue
• Driving out cost
– Extend up-time of PPC & work-over vessels
– Extend life of CT
• Business case for real time CT fatigue monitoring
– Installed cost: $250-400k
– Reduce CT safety factor: x2-x5 x1.5-2 $100k per campaign
– Reduced vessel downtime: $150k per campaign
– ROI: <6 months
Riserless Intervention Fatigue Monitoring
- CoiledTubing elastic fatigue monitoring
Real time Fatigue Monitor
12. Platform NDT Monitoring
- Subsea wireless asset integrity network for NDT sensors
• Description
– Retrofit wireless sensor network for subsea platforms
• Features
– Seatooth interface integrates with most standard NDT sensors
– Wireless range: up to 35m through seawater or 150m through air
– Network expandable
– Wireless communications through splash zone
• Applications
– NDT monitoring of offshore platforms – corrosion, crack, vibration,
strain, temperature
• Driving down cost…
– Removes cost of subsea cabling
– Deployed by mini-ROV off platform
– Up to 10 years between battery swaps
• Business case: for 12 subsea nodes on offshore platform
Hard Wired v Wireless Saving
– Installed cost: $3-5m $700-900k >70%
– Expandability: n/a high
Seatooth S400 NDT Network
13. Pipeline Corrosion Monitoring
- Corrosion data harvesting using PIG
• Description
– Corrosion/erosion data harvesting using PIGs
• Features
– Seatooth PipeLogger UT (Ultrasonic Thickness) integrates with standard sensors
– Local data processing to optimise wireless transmission
– Battery life up to 15 years
– Seatooth PigTracker harvests data through up to 5cm (2” ) metal at10bps
• Applications
– Corrosion/erosion monitoring of piggable subsea and buried pipes
• Driving down cost…
– Removes cost of subsea cabling
– Deployable using mini-ROV
• Business case for 4 sensors on 30km pipeline in shallow water
ROV v Wired v Wireless Saving
– Installed cost: $4-5m $1.5-2m $400-500k >85%
– Expandability: high low high
‘Seatooth PigTracker
‘Seatooth PigTracker in 30mm pipe
‘Seatooth PipeLogger-UT
14. Seatooth Mooring Line Monitor
- Wireless FPSO Mooring Monitoring Solution
• Description
– Retrofit wireless mooring monitoring solution to extend asset life
• Features
– Retrofit inclinometers/vibration sensors with local data processing
– Data time and GPS tagged to calibrate against vessel movement
– Wireless communications through splash zone
– Deployed by mini-ROV or diver
• Applications
– Real time monitoring of mooring integrity
– Verification of system fatigue characteristics
• Driving down cost…
– Extend life or mooring system
– Up to 10 years between battery swaps
• Business case for 12 mooring line monitoring system
– Hardwired: not an option as too unreliable
– Installed cost: $0.75-1m
– Asset life extension: 2-5 years (against £25-50m replacement cost)
‘Wireless Mooring Monitoring
15. SeatoothVideo
- Subsea wireless camera
• Description
– Subsea wireless camera system
• Features
– Wireless video streaming up to 10 frames per second/CIF
– Internal battery
– Antenna: external 1m rod; optional internal
– Data interface: Ethernet
– Camera: integrated; optional external
– Options: subsea light, ON/OFF switch
• Applications
– Complex IRM
– Remove cost/hazard of 2nd ROV
– Monitoring hydrate build-up
– Leak monitoring
• Driving down cost…
– Avoid cost of second ROV
– Deployed by mini-ROV off platform
• Demonstration
– SeatoothVideo monitors ROV in tank
‘Seatooth Video with External Camera
18. SeatoothWiPS
- Wireless Integrated Pressure Sensor
• Description
– Integrated wireless pressure & temp sensor, datalogger, display
• Features
– Pressure: to 700bar
– Depth rating: 4,000m
– Memory: 400,000 readings
– Networkable
– Battery: primary or rechargeable
• Applications
– Pipeline pre-commissioning
– Process monitoring
– Asset integrity monitoring
– Asset deployment/recovery
• Driving down Cost…
– ROV freed up during PPC
– Avoid time for hot stabs
• Demonstration
– ROV interrogates SeatoothWIPS system in tank
– ROV reads SeatoothWIPS display
Wireless ROV Test PanelSeatooth WIPS
19. Summary
• WFS provides a way of getting much more information about
subsea operating conditions at a fraction of current cost –
asset integrity, flow control,
• Standalone wireless, battery powered devices (using standard
sensors)
• Temperature, Ultrasonic flow, Corrosion,Vibration, Strain ….
• Cost factors…
– Very low cost installation
– Very low cost maintenance
– Very low cost data retrieval
• Potential
– Closed loop control
– Real time information at surface (retrofit to existing
infrastructure)
20. • “I am deeply impressed with the
technologies that WFS has
developed, and I see several
subsea applications to
significantly reduce costs and
increase production”
Paul Tooms, former Chief Engineer, BP
