Subsea Wireless Instrumentation and Communication Systems Ian Crowther March 2014
WFS Background WFS Wireless For Subsea Founded 2003 Operations in UK & USA Wireless Solutions Control and Instrumentation Communications Power Transfer Location and Navigation Field proven product / projects delivered in North Sea Gulf of Mexico SE Asia Australia
Seatooth Product range Bandwidth Seawater Range Antenna PCB Size mm Power Consumption S100 2.4kbps 5m Internal 100x50 Rx: 0.18W Tx: 0.6W Hybrid Radio- Acoustic Wireless Power Comments Yes 10W 2kW Compact, low power S200 10bps 8kbps 10 50m External 0.5 2m 250x150 Rx: 4W Tx: 16W Yes 10 W 2kW Longer range, low bandwidth S300 25 kbps 156kbps 4 10m External 0.5 1m Internal 250x150 Rx: 5W Tx: 16W Yes 10W 2kW Broadband, short range S500 10Mbps 100Mbps 0-10cm Internal 50x50 Rx: 0.1W Tx: 1W No 10W 2kW Superfast broadband High speed Low Power Robust communications Wireless Power option Omni-directional Supports networking
Wireless Instrumentation & Control Solutions Seatooth Pipelogger Seatooth WiPS Seatooth CP Seatooth DepthTracker Viewtooth Wireless Video Camera Seatooth PigTracker BOP Mesh Network Wireless Connector Wireless Controller
Seatooth PipeLogger Pipe-mounted sensor Standard Temperature Pressure Options Wall thickness Sand erosion Flow Self-powered Compatible with insulated pipes Easy deployment/retrieval by ROV/divers Auto data recovery by diver or ROV. Store up to to 400,000 time-stamped data points in fully user configurable logger Can be networked to collect data from sensors in difficult-to-access locations Alternative to intrusive hardwired monitoring, no shut down required Seatooth Pipelogger
Case study: Pipeline Integrity Management Purpose Flexible retrofit of temperature sensors to monitor subsea pipework Wireless data recovery subsea by fly-by ROV, AUV, Diver or topside Specification Temp sensor: 0-200 C; +/- 0.5 C Datalogger: 400,000 data points Radio Upload rate: approx. 1,000 samples per min Range: up to 5m Networkable Magnetic clamps Battery life: 5 years Benefits Low cost deployment & recovery Low cost, flexible data collection Wireless sensor networks to access remote locations
Seatooth WiPS Wireless ROV test panel with integrated sensor, datalogger and LED display Pressure Strain Inclinometer Sensor data transmitted wirelessly to the Seatooth radio modem attached to ROV MUX up to 5 metres away 60 days of data collection at a rate of 1 sample per minute (up to 6 months data collection at a rate of 1 sample per hour) WiPS supports 2 analogue and 2 serial sensors Applications Pipeline commissioning (pressure) Survey (pressure) Construction (strain, inclinometer) Drilling (inclinometer) Seatooth WiPS
Case study: Pipeline Pre-commissioning Problem: - Data-loggers expensive to recover to surface - Wet-mate data recovery unreliable Solution: - RF retrieval using ROV / AUV - Can be installed on micro ROVs - Fast reliable download without physical connection Save time and money harvesting logged data Reduce sized and cost of deployed assets
Seatooth CP (Cathodic Protection) Purpose Time-stamped data on condition of anodes Wireless CP data recovery subsea by fly-by ROV, AUV, Diver or topside Specification Integrated reference cell Datalogger: 400,000 data points Radio Upload rate: approx. 1,000 samples per min Range: up to 5m Networkable Battery life: 15 years Benefits Evidence of CP performance Removes requirement for CP stabs Wireless data retrieval through seawater, seabed, concrete, cason Wireless CP networks to access remote locations
Smart Cathodic Protection: - Field-wide optimisation Purpose Optimise performance of installed CP networks Extend life of field Maximise availability Specification Smart CP Skid anode, reference cell, wireless logger Extended sensor package: Pressure, temperature, salinity Wireless ADCP skid Benefits Balance impressed current & CP systems Optimise protection to match local conditions Current Monitoring with ADCP Smart CP Skid
Seatooth DepthTracker Purpose Locate and confirm burial depth of cable or pipe Specification S100 Logger/5m Pressure sensor: +/1 0.25% Benefits No reliable method of detecting cable buried >2m Long term tracking in 11
Seatooth PigTracker Purpose Locate pig stuck in pipe Communicate with pig Specification Seatooth S200 Multiple scenarios Subsea / on-land Buried pipes Concrete clad pipes Pipe in pipe ROV fly by Range through pipe wall: Up to 1.5 /38mm Data Interfaces: RS232, RS485, 4-20mA Range through water: Up to 10m Data Rate: 50 bps Material: Steel of relative permeability of up to 100 Conductivity less than 8 ms/cm Storage: (Integrated Datalogger) 8MB of nonvolatile memory
Viewtooth Subsea Wireless Video Camera Standard systems Camera: (Pan/Tilt/Zoom) Fixed or PTZ Depth rating: 350m, 4,000 Antenna: External 0.75m Lighting: camera) Internal LED ring (Fixed Battery: rechargeable Internal, 8hr life, Options Depth rating: Up to 8,000m Antenna: Internal (reduced range) Lighting: External spotlights Clamps Mechanical, magnetic, Battery pack: Internal, 24hr life, Skid Integrated lighting, battery, deployment system PTZ Camera System Deployment in N Sea
Wireless Camera: Viewtooth Applications Visual perspective when undertaking complex ROV tasks - Hot stabs and connections - Landing structures Avoid multiple ROVs in the water Avoid jumpers Solution Wireless camera clamped near to target Real time streaming video during operation Increased ROV safety Reduced operating times
i-tech7 - Woodside Aug 2013
Seatooth BOP Mesh Purpose High reliability wireless control and SCADA sensor networks to improve safety, availability Specification Radio: Benefits Problem Need for increased instrumentation on BOPs Reliability problem of subsea connectors Benefits Wireless network delivered high availability Open standards/interoperability reduces cost and increases flexibility SMART Workover sensor network CP, Pressure, Temperature, Position, Strain, Acceleration Active RFID Asset details Maintenance record Wireless network topology Band B Mesh: up to 50 sensor points Integrates with SCM Data refresh rate: 1 min Band C: high speed interrogation via ROV RO V
Wireless Connector Problem Standard connection between LMRP and lower BOP stack made with wet-mate connector Multiple disconnects and reconnects compromises connectors leading to failure Failed connector on BOP leads to extended downtime Re-mating connectors is time-consuming, precision operation Solution Seatooth S500 - Wireless Data + Power Radio delivers reliable, non wet-mating communications Comms link set up prior to re-connect Power transferred by inductive coupling Ultra high reliability connection
Case study: Offshore Decommissioning Wireless slip ring system specification : Seatooth S300 wireless data (100kbps) 1kW wireless power transfer Across rotating joint WFS licensed design and system supply Beerenberg tool cuts subsea conductors with 4 rotating diamond saws Completed 5 operations to date in Gulf of Mexico
Case study: Autonomous Underwater Vehicles Project objectives: To demonstrate the application of Saab AUV with WFS wireless capability Data gathering Recharging sensors To evaluate and promote long term deployments of AUVs supporting life of field extension through increased instrumentation and reduced costs Project delivery Supply of standard seatooth systems for integration with Saab AUV Supply of 2kW Wireless Power Support with system integration and offshore trials Project status Successfully delivered in Q3-Q4 2012
Wireless Remote Control WEBSITE: www.wavejet.com EXPERTISE: Supply of handheld wireless remote control systems for Personal Water Propulsion (PWP) Surfboards, Stand Up Paddleboards (SUPs) and Water Rescue Boards. PRODUCT: WaveJet Personal Water Propulsion (PWP) System http://www.youtube.com/watch?feature=player_embedded&v=orkt0pcrnle
Case study: Wavejet The WFS wristband controller allows me to remotely operate my Personal Water Propulsion system while I m out on the water. There is no on/off switch to reach for and no tether system required. It s all controlled from my wrist remotely by this remarkable technology. The WFS system knows when a rider is separated from his board and automatically shuts off the motors. The rider dismount shutoff is a key safety feature for our product. http://www.youtube.com/watch?v=uro5t1zowlw&feature=bfa&list=uu WCtN1ItnSI0R_3dCSp0mJQ&lf=plcp
Subsea Wireless Group WFS is part of the Subsea Wireless Group (SWiG), a not-for-profit organization, established to promote and direct the use of through water communication technologies within the oil and gas sector. www.subseawirelessgroup.com
Ian Crowther Executive VP WFS Technologies ian.crowther@wfs-tech.com +44 7813 437946 www.wfs-tech.com