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.
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:
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
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.
| 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 |
• 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
• Operating depth range 3,000 m (5,000 m)
• Robust two-way communications
• Compatible with all makes of DP system
• 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%
• Compatt 6 DPTi riser transponder
• Riser Profiling software
• HPT Transceiver
• Marine Computer
• Ethernet Serial Hub (ESH)
• Riser mounting buckets available
