Seatooth® PipeLogger is a pipe mounted sensor that measures temperature data at the pipe surface under a thermal insulating ‘cover’ to ensure core pipe temperature. Seatooth® PipeLogger is a wireless SCADA platform for subsea pipelines and risers. It supports a range of non-penetrating sensors including temperature, wall thickness, vibration, and flow. Data is stored locally for wireless upload by ROV, diver or AUV. Alternatively, 2-way wireless communications can be provided with a nearby control system or to a remote platform using Seatooth or hybrid Seatooth/Acoustic communications.

1. Seatooth® Pipelogger
Non-Intrusive Wireless Pipeline Monitoring
System
WFS Technologies

2. About WFS Technologies
WFS – Wireless For Subsea
 Founded 2003
 Operations in UK & USA
Wireless Solutions
 Drilling
 Subsea Vehicles
 Asset Integrity Management
Field proven product / projects delivered in
 North Sea
 Gulf of Mexico
 SE Asia
 Australia
 W Africa

3. Seatooth® PipeLogger
Wireless pipeline monitoring
• Pipe mounted sensor that measures pipe temperature
• Options: Wall Thickness
Sand Erosion
Vibration
Flow
Self Powered
• Easy deployment/retrieval by ROVs and divers using magnets or tie-wraps,
for temporary or permanent solution
• Data received wirelessly by ROV, diver or AUV at a download rate of
1000 samples per minute. ROV/diver up to 5m away.
• Can be networked to collect data from sensors in difficult-to-access
locations
• Compatible with insulated pipes
• Alternative to intrusive hardwired monitoring, no shut down required

4. Seatooth® PipeLogger
Benefits
Asset Integrity Benefits
Upheaval buckling
• Low cost, flexible solution to for extended monitoring of pipelines
• Verify integrity for assets subject to process change
Over-temperature of flexibles
• Low cost, flexible solution for long term monitoring of flexibles
• Early identification of elevated temperatures
• Improved data to support process EOR and process optimisation
Internal corrosion / erosion
• Flexible method of monitoring assets at risk of accelerated corrosion/erosion
• Optimise interventions intervals: reduce OPEX, increase availability
• Extend asset life - increase profitability.
• Improved safety through fewer diver/ROV deployments
VIV and FIV monitoring
• Low cost, flexible retrofit solution to riser, span and pump vibration monitoring
monitoring
• Extend asset life - increase profitability
Location / movement
• Reduced cost of monitoring
• Identification of asset problems avoids leaks / shut downs
• Extend asset life - increase profitability
Flow Assurance Benefits
Enhanced Oil Recovery
• Better management of assets which leads to life extension
• Extend asset life - increase profitability
Hydrate Build-up
• More data leads to better decision making.
• Extend asset life - increase profitability

5. Seatooth® Pipelogger
Applications
• Wireless Integrity Management
– Upheaval buckling
– Riser over-temperature
– UT monitoring
– FIV/VIV
– Pig Location
– Smart CP monitoring
– Mooring monitoring
– Pipeline pre-commissioning
• Wireless Flow Assurance
– Retrofit temperature control
– Wax build-up
– Pig location
• Wireless IRM
• Wireless Downhole
• Wireless Open Standards

6. Wireless Integrity Management
- Upheaval Buckling
• Objective:
– Prevent temperature induced
upheaval buckling of subsea
pipelines
• Solution
– Seatooth PipeLogger:
• Retrofit non-invasive temperature
sensor
• Monitor process temperature
flows over 3 – 12 months
• Measure temperature through
thermal insulation
• Wireless comms through seabed
and concrete blanket
• Harvest data by ROV, Diver or
AUV
• Battery life up to 10 years

7. Wireless Integrity Management
- UT Monitoring
• Objective:
– Identify excessive internal
corrosion
• Solution
– Seatooth PipeLogger:
• UT (Ultrasonic Thickness)
sensor
– Single sensor at 6
o’clock
– Multiple sensors in ring
• Measure wall thickness
through up to 20mm pipe
coating
• Wireless comms through
seabed and concrete
blanket
• Harvest data by ROV, Diver
or AUV
• Battery life up to 10 years
Seatooth PipeLogger with UT Sensor

8. Wireless Integrity Management
- FIV/VIV, Free-span Monitoring
• Objective:
– Identify and monitor Flow and
Vortex induced vibration
• Solution
– Seatooth PipeLogger:
• Integrated accelerometer
• Collect data at pre-determined time
intervals
• Harvest data by ROV, Diver or
AUV
– Optional local processing of data
– Integrated sensor network
• ADCP
• Pressure
• Temperature
VIV on Risers
VIV on Free-Span

9. Wireless Flow Assurance
- Retrofit Temperature Control
• Objective:
– Low cost, flexible retrofit
temperature sensor
– Rapid replacement of
broken temp sensors
– Process monitoring
during commissioning
and trouble-shooting
• Solution
– Seatooth PipeLogger
• Integrated Temperature
sensor
• Buried or under concrete
blanket
• Battery: up to 10 years
– Wireless link to platform
– No dunkers or cables
through moon-pool
Pipeline
Seatooth Hybrid
Radio-Acoustic
Repeater
Seatooth Hybrid
Radio-Acoustic
Repeater
170m
Platform
Seatooth S100
Repeater
To Computer
5m
Radio link
Seatooth
PipeLogger
Concrete Blanket/Rubble
<5m Radio link
Seatooth
S100
Hardwired Temp Sensor
Performance tests through
Concrete Blanket

10. Wireless Flow Assurance
- Wax build-up
• Objective:
– Identify and monitor build-up of wax
• Solution
– Seatooth PipeLogger with
integrated ultrasonic flow sensor
– Deploy by diver or ROV at multiple
locations along pipeline
– Velocity increases at restriction
– Measure flow rate differential
• Benefits
– Flexible diagnostic tool
– Can be left permanently in difficult-to-
access locations
Seatooth
PipeLoggger 1
Seatooth
PipeLoggger 2
Velocity 1 Velocity 2
Wax

11. WFS Technologies
info@wfs-tech.com
+44 7813 437946
www.wfs-tech.com