CUBE. Subsea Attitude Monitoring and Logging System

Transcription

1 CUBE Subsea Attitude Monitoring and Logging System

2 Contents Seatronics Introduction Description CUBE Frame Instrumentation Software Installation Support Performance History

3 Seatronics Introduction Seatronics, an Acteon company, specialise in marine electronic equipment rental and sale for a range of applications: geophysical and hydrographic survey; positioning; metocean; video inspection; ROV survey; ROV tooling, diving & non destructive testing (NDT), information technology systems and fishing sensors. The largest and youngest subsea electronic rental fleet available Exclusive agency agreements with best in class Cables and Connectors - the only manufacturer approved cable moulding facility Exclusive products Global coverage Calibration facilities Offshore personnel Onshore support 24/7 3

4 RTS CUBE - Description The RTS CUBE is an advanced self-contained subsea instrument package for monitoring heading, pitch, roll, depth and other user-specified parameters. The unit is scalable and can be configured as a straightforward battery-operated gyro with subsea displays or as a complex logging solution for a host of different sensors. Examples of applications: Monitoring heading and inclination during descent and deployment of subsea structures Monitoring differential pressure inside suction anchors during deployment to avoid implosion Alignment and placement of pipes Wellhead installation Long term monitoring of subsea installations with automated wake-up and sleep functionality Post installation monitoring The system can provide the user with live data and graphical displays of the required parameters (and optional video) via an acoustic modem or hot stab connection. This will aid the user in decision-making during critical operations and make sure specified tolerances and safety requirements are upheld. The collected CUBE data is supplied as a deliverable and can be replayed post-operation. The CUBE consists of a frame containing system controller and logger, gyro, subsea displays, battery, acoustic telemetry, ROV-operated switch, ROV hot stab and optional auxiliary sensors. 4

5 CUBE Frame Compact and robust stainless steel frame Unique design to allow for easy access to internal components Rugged plastic protection covers Certified lifting points (4x) ROV-operated switch ROV Hot Stab Mechanical Specifications Dimension: 580,5 x 562 x 562 mm Weight: Approx. 90 kg depending on configuration Additional payload: Approx. 310 kg (MGW max 400 kg) 5

6 Instrumentation Internal Data Logger (SD) Real Time Clock for all sensor data Extremely low power consumption and monitoring of batteries and external sensors Auto fuses and relay control for all external sensors Deep Sleep Function RTS Developed Data Transmission Protocol for faster acoustic transmission (Pallando) Ethernet and Wireless radio communication Connections: 1 x Heading and Attitude sensor 3 x Depth/Pressure/Altimeter/Inclination sensors (or optional Video) 1 x Differential Pressure sensors 1 x Acoustic Modem and/or Transponder 1 x RF Switch and Wireless Communication 1 x Wet-mateable Stab Connector 2 x Subsea Display 3 x Subsea Battery Package connections 1 x Spare/Secondary CUBE system connection 6

7 Instrumentation RTS Subsea Display High Visibility Display Extremely low power consumption (ca. 1/20 of competing products) Full RGB capability Programmable intensity and update rates RTS in-house developed product IxBlue Octans G4 Gyro (standard) Heading Accuracy: 0.1 Secant Latitude Pitch/Roll Accuracy: 0.01 Alternative Gyros TSS Saturn 30 IxBlue Octans Nano 7

8 Instrumentation Paroscientific DigiQuartz Pressure Sensor Accuracy: 0,005% FS Depth Rating: 270 / 700 / 1400m Dimensions. (700m unit): 260mm x ø213mm Alternative Pressure Sensors Valeport MiniIPS SAIV TD Series Differential Pressure Sensor Manufacturer: Keller Range: +/- 10 bar Accuracy: 0,05% FS Max environment pressure: 2000 MSW 8

9 Instrumentation RTS Power Pack Alkaline battery pack 24 VDC 54 Ah Capacity per unit (3 units standard per system) 3000m rated titanium housing Dimensions: 395mm x ø170mm Optional: Lithium battery pack Video Composite Video can be interfaced through the Subsea Logger (Note that this is only available through the use of the Hot Stab connection.) Any type of subsea composite video camera can be interfaced. As an example, previous projects have used the Imenco Whitetip Shark cameras with built-in lighting to visually monitor structure movements relative to a pre-deployed ruler. 9

10 Instrumentation Inclinometers Subsea inclinometers can be interfaced on request: Examples: CDL MiniTilt, SBG, Vectory Microrad and others. External Sensors A number of other sensors can be interfaced upon request. 10

11 Instrumentation Data Telemetry The CUBE can operate with a wide variety of data telemetry options. Please see most common options below: Kongsberg cnode (HiPAP Modem) Cymbal Wideband acoustic telemetry Can be run on APOS Survey OS Tested and qualified for use with RTS CUBE Benthos Acoustic Modem (ATM-886/926) LF acoustic telemetry Generic data string Sonardyne ucomm Acoustic Modem Wideband acoustic telemetry Generic data string 11

12 Instrumentation SYSTEM COMPONENT OVERVIEW Sensory Equipment Examples RTS TEXT Displays Depth CTD Altimeter ADCP Tide Gauge Communication with spare system Subsea Logger and Control System Acoustic Communication Wireless on-shore Radio Comms Optional Eth. camera Direct connection Stab connector Diff Pressure / Implosion Monitoring Battery Packs Heading and Attitude 12

13 Software Topside GUI The RTS CUBE is supplied with a proprietary software developed at RTS. Based on many years of experience with installations using the RTS Gyro Toolbox, a new software has been developed to further enhance user control and visibility during testing, calibration, deployment and post-project. Live graphic and numerical data Installation tolerance alarms Logging & Playback Event Screenshots Improved update rates Power and comms diagnostics Automated equipment initialization 13

14 Installation Structure Mechanical Interfacing Different solutions for mechanical interfacing can be supplied by Seatronics or the systems can be adapted to receptacles or bracketry specified by the customer. See examples of below: Examples 14

15 Installation Vessel Equipment The following equipment is mobilized on the vessel (on-line) pre-project: CUBE Surface Laptop External screen Interfacing accessories Kongsberg APOS Survey OS (if cnode is to be used) ROV Equipment The following equipment is concurrently mobilized and tested on the ROV(s) and communication to on-line confirmed: Gisma Hot Stab Connector (plus spare) Acoustic Modem (plus spare) 15

16 Support Project planning and discussions CUBE System configuration according to customer specification CUBE System FAT (Factory Acceptance Test) including ocean wet test, and pressure testing of required vessels Cable moulding (in-house) and testing of all required cables Structure pre-inspection (if required) System installation and testing Complete system installation reports and deliverables such as log files Optimization of all pressure sensors to exact deployment depth by accredited calibration lab Offshore technicians to assist during operation and maintain systems Technical on-shore support team available 24/7 16

17 Performance History Since the predecessor of the CUBE, the Gyro Toolbox systems were released, a large number of projects have been successfully completed utilizing these systems. Clients include the major subsea entrepreneurs involved in subsea construction work including Subsea 7, Technip, Fugro, EMAS, Saipem. All system components are sourced from the best possible equipment suppliers. With access to the worlds largest pool of rental marine survey assets, all components are carefully chosen based on track record and performance. All engineering of key CUBE components such as subsea logger, subsea displays, battery packs, framework and software are performed internally by our engineering department. This ensures complete control of system hardware and software, allowing us to fully support the systems and our clients. Our joint rental pool with RTS assures system availability on short notice as well as a global presence. 17