Improved Operational Efficiency Through 3D Laser Scanning Techniques. Presented by Grace Chia, Sales Engineer, Seatronics

Transcription

1 Improved Operational Efficiency Through 3D Laser Scanning Techniques Presented by Grace Chia, Sales Engineer, Seatronics

2 About Us SEATRONICS The Marine Technology Specialists; Market leaders in provision of marine electronics to the subsea services market Global partners and distributors of 2G Robotics ULS range of systems 2G ROBOTICS Founded in 2007 in Waterloo, Ontario, Canada Dedicated to advanced research, development, and engineering for the production of innovative and cutting-edge solutions Over fifty systems built and deployed worldwide on all seven continents

3 Why Laser Scanning? Ultra High Resolution that could not be achieved previously Time savings

4 Basic Principles of Operation: Triangulation Stationary Scanning Dynamic Scanning points 50 deg FOV 52 Hz laser line capture 52 Hz laser line capture

5 Data Processing Data is captured in real-time and can be easily processed while still offshore.xyz conforming to LAS data output. Dedicated drivers in EIVA, HYPACK, and QPS software.

6 What is available from 2G? ULS-100 Stationary Only 0.13m to 1m range ULS-200 Stationary Only 0.25m to 2.5m range Typical Applications: Interior pipes, tubes, tunnels, piles Small size damage or asset condition Flume tanks and sediment experiments Confined spaces Basic Specs: 480 points per line 9 lines/s 360 degree rotation, 50 degree laser swath mm resolution RS-485 communication protocol 350m depth rating

7 What is available from 2G? ULS-500 PRO Dynamic or Stationary 1.5m to 20m range Rotary Actuator for stationary scanning ULS-500 PRO Accessories SeaShot Imager Stills Camera & SeaShot LED Typical Applications Spool metrology As-built surveys Damage assessment Pipelines AUV integrations Basic Specs 2048 points/line 52 Hz laser line capture; ~90Hz in pre-release PPS time synchronization for vehicle integrations 4000m depth rating Gb Ethernet

8 Operating Conditions

9 Operating Conditions Laser Range = Visibility Range (up to 20m) If you can see if with a camera, the laser will work!

10 Operating Conditions Ambient Light = More Noise More Outlier Points Will Appear In The Scan

11 Operating Conditions Shiny objects are difficult to scan since the laser reflects off the object at defined angles and not back towards the sensor.

12 Operating Conditions Further Distance = More Coverage, but More Gaps Between Points

13 Case Studies: Oil and Gas

14 Dynamic Spool Metrology Company DOF Subsea Location The Underwater Centre, UK Objective Dynamic ROV Metrology Survey Product ULS-500 Pro

15 Dynamic Spool Metrology The two target structures were laid on the sea floor in a water depth of approximately 32m and approximately 18m apart. They were rotated to roughly align the small flanges. 2GR ULS 500 Pro system Sonardyne Sprint AAINS system and Syrinx DVL Sonardyne ROVNAV 6 Mini SVS Paroscientific DQ CTD Gen 5 Multiplexer Mobilised on board The Underwater Centre XL ROV

16 Dynamic Spool Metrology

17 Comparison to LBL Results

18 Operational Efficiency 15m hub to hub metrology completed in 20 minutes- 4 scans 3 of which were redundant. Compared to stationary laser scanner approach which took 6 hours Operational in conditions where other systems couldn t operate due to proximity of ROV ranges to target. Contactless method of performing metrologies Real time 3D data in large volumes Seabed profile Inherent part of the delivery (3D point cloud) Minimal Calibration Auto-calibration, mechanical integration,... Reduced operational vessel and ROV time!

19 Operational Efficiency The benefits of mobile laser metrology may be summarised as follows: Non-Intrusive - no prior subsea intervention is required in advance of metrology, and no subsea bracketry, control spheres or metrology aids are required. Flexible Deployment - modular system which can be easily fitted to an ROV (for Dynamic data acquisition), or mounted onto a tripod (for static data acquisition). Time to Survey - significant reduction in the time (and therefore vessel cost) needed to gather the survey data in comparison to traditional techniques such as pure acoustic LBL. Time to Data - quick delivery of results offshore; typically within six hours of data acquisition. It is normal for data processing to be conducted in parallel with array recovery operations. Inferred Metrology - with prior dimensional control information, hub position and orientation can be inferred using laser scan data. More than Metrology - the 3D model used for metrology serves as an As-Built model of the subsea installation and the surrounding area to provide a baseline for future intervention work.

20 User Feedback The parallel development of high resolution underwater laser and high precision acoustically aided inertial navigation has revolutionized the capability to perform mobile metrology operations in a timescale previously unattainable. DOF Subsea Mobile Laser Metrology Report SV-CL C It is now entirely practical to deploy a limited LBL array in close proximity to the targets and conduct high speed data acquisition operations followed by immediate processing on board the vessel. Preliminary results are typically available within hours of deploying the array, thus saving significant vessel time and allowing operational decisions to be made without delay. DOF Subsea Mobile Laser Metrology Report SV-CL C

21 Oilfield Mapping and Metrology (2016+) Company Confidential Location Ghana, Africa 1300m water depth Objective Dynamic ROV Survey of a problematic oilfield for condition assessment. Included spool metrology and pipeline surveying. Product ULS-500

22 Oilfield Mapping and Metrology (2016+)

23 Oilfield Mapping and Metrology (2016+)

24 Oilfield Mapping and Metrology (2016+)

25 Hugin AUV Pipeline and Seabed Mapping Company Oceaneering Survey Services Location Global Objective Free span detection, pipeline movement, other damage. 7 Oceaneering Owned ULS-500 s operating on 6 Hugins worldwide. Over 10,000km of pipeline scanned with ULS- 500 to date. Product ULS-500

26 Hugin AUV Pipeline and Seabed Mapping Sample Results (1): Concrete Mattresses for Cross Over Pipes

27 Hugin AUV Pipeline and Seabed Mapping Sample Results (2): Buoyancy Collars

28 Hugin AUV Pipeline and Seabed Mapping Sample Results (3): With Stills Overlay

29 I-Tube Inspection (2015) Company Ocean Atlantic Petroleum Location Angola Objective Geometry and Ovality of 44 ID I-Tube to facilitate installation of high power umbilical cable Product ULS-200

30 I-Tube Inspection (2015) Solution: Spring Actuated Centralizer Frame with ULS 200

31 Marine Archeology & Salvage

32 U-576 WWII U-Boat Survey (2016) Company NOAA Location 30 miles offshore North Carolina, USA >200m depth Objective Provide 3D documentation of an underwater WWII battlefield Solution ULS-500 PRO interfaced with EIVA NaviSuite and attached to a frame mounted to a Triton 1000/2 submarine with SPRINT for positioning

33 U-576 WWII U-Boat Survey (2016) Range: 15m+ Up to 30,720 points/sec 30 profiles/sec Integrated stills imaging and smart subsea light

34 U-576 WWII U-Boat Survey (2016)

35 Costa Concordia Salvage ( ) Company ADUS DeepOcean Location Tyrrhenian Sea, Italy Objective Assess damage to underwater portion of the Costa Concordia during the salvage operation. Produce point cloud model of the entire underwater portion of starboard hull. Product ULS-500

36 Costa Concordia Salvage ( )

37 Costa Concordia Salvage ( ) Close Up 3D Point Clouds Details Sample Results (1): Close up of 3D Point Cloud Details

38 Scientific Research

39 Sediment Transport Company: Genex Systems Location: Turner Fairbank Highway Research Center, VA Objective: Measuring real-time sediment bed load Product: ULS-100

40 Things to consider about Laser Scanning What is the resolution required? What is the range that the project can offer? Is it better to do it in Scan Mode or Profile Mode?

41 Thank you for your time! Any Questions?