Riser profiling system
Overview
Real-time subsea asset monitoring
Providing a wireless vertical profile of current speed and direction, temperature and inclination, our Riser Profiling system (RPS) is your solution for real-time subsea asset and riser monitoring. Whether your risers are deployed from drilling or production vessels, our RPS gives you confidence in their integrity with real-time observations.
Precision depth monitoring for offshore operations
The Riser Profiling system can be used as a standalone, integrated within a Marksman LUSBL acoustic position reference system, or with a third-party integrated monitoring system.
6th Generation (6G®) DPTi or SMART transponders wirelessly mounted along the length of the riser, provide highly accurate data. These are clamped onto the riser during deployment or installed via ROV subsea. Up to ten transponders are mounted on a riser. Each transponder is fitted with the following sensors:
- High-resolution dual axis inclinometer
- Water temperature
- Pressure and depth
- Optional single point Doppler current meter (speed, direction)
The gathered data is transmitted wirelessly from the transponders using our Wideband 2 acoustic signals to a transceiver on the vessel, eliminating the need for expensive umbilical cables to fitted up each riser.
At a glance
- Designed for monitoring your riser’s integrity
- Helps prevent critical damage during operations
- Removes need for expensive cables
- 6G hardware and Wideband 2 acoustic delivers robust performance during operations
- User configurable update rates
Advanced monitoring for subsea success
Topside software makes changing monitoring regimes easy. You can even set an alarm to activate when the calculated riser angle exceeds a predefined limit.
At the update rate you choose, inclination, current speed and direction, pressure, temperature measurements are requested from each transponder. All data is processed, logged and displayed graphically and numerically on the topside computer software for your instant analysis. When SMART transponders are used, the data is processed within the transponder and wirelessly transmitted to the vessel’s transceiver.
Specifications
| Rider Profiling System | Equipment Required | |
|---|---|---|
| Topside Computer Hardware | Sonardyne Navigation PC (marine approved) | |
| Operating System | Windows®10 | |
| Acoustic Sensor Interfacing and Time Sync | Sonardyne Type 8098 Navigation Sensor Hub (NSH) | |
| Vessel Transceiver | Sonardyne Type 8142 HPT (LMF band) | |
| Riser Transponders | Sonardyne Type 8300 DPTi 6 (LMF band) | |
| Sensor Accuracies | Temperature (PRT) | ±0.1°C |
| Pressure/Depth (Strain Gauge) | ±0.01% | |
| Dual Axis Inclinometer (Pitch/Roll) | ±0.05° over 0 – ±15°; ±0.2° over 0 – ±45° | |
| Current/Water Velocity (Single Point Doppler) |
1% of measured value ± 0.5 cm/s |
Downloads
Datasheets
Support
• Comprehensive and flexible training for system operators
• 24-hour support, whenever and wherever you are in the world
• Custom configured to meet your exact operational requirements
• Systems are manufactured and tested before delivery at our world-class in-house facilities
Design
• Operating depth range 3,000 m (5,000 m)
• Robust two-way communications
• Compatible with all makes of DP system
DPTi 6 at a glance
• High accuracy inclinometer range: ±90°
• Accuracy: 0° to ±15° = ±0.05°; 0° to ±45° = ±0.2°
• Temperature ±0.1°C
• Tilt switch ±30-45°
• Strain gauge pressure sensor ±0.01%
• High precision strain gauge (optional) ±0.01%
Hardware overview
• Compatt 6 DPTi riser transponder
• Riser Profiling software
• HPT Transceiver
• Marine Computer
• Ethernet Serial Hub (ESH)
• Riser mounting buckets available
