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Water Distribution

Laser Scanning for Water Management

When a water-supply source becomes compromised, the consequences can be devastating. In order to ensure continuous operation and efficient water distribution, water-supply sources need to be inspected periodically so that any potential problems, such as corrosion, cracks, instability and stress, can be proactively addressed.

Interior Tubes

Assessing the Current State

  • Obtaining accurate information of the deterioration and changes to tubes and jackets is essential to enabling effective project commissioning
  • Additionally, understanding of the current state of tubes is important for maintaining the integrity of assets and projecting work necessary across their lifespan

Constraints of Caliper Pigging

  • A traditional approach for interior tube inspections is caliper pigging and simple video inspection. However, caliper pigs for large diameter pipes are extremely heavy, which increases deployment complexity and project operating costs
  • Also, spacing between each of the caliper pigs’ sensors means that the results will be low resolution and that the production of the final models must rely on data interpolation

Laser Scanning for Precise Results

  • 2G Robotics’ laser scanners produce submillimeter resolution 3D models, removing the need for data interpolation by capturing detailed geometry and anomalies that traditional methods would not observe or, at best, poorly define
Complete I-tube Laser Scan with Segments Merged
Interior View of I-tube Laser Scan Showing Damage

Pipes and Tunnels

Tunnel Maintenance

  • Water tunnels will gradually deteriorate over time, resulting in structural distress. Acquiring comprehensive knowledge of a tunnel’s condition is essential for ensuring reliability and maximizing the service life of the asset
  • If tunnel condition assessments are not routinely performed, potential problems that threaten to interrupt power generation or water supply cannot be properly identified

Inspect Without Disrupting Service

  • In order to assess the condition and evaluate the reliability of water tunnels, the tunnels often need to be taken out of service. Water tunnels, however, are critical infrastructure and so removing them from service for inspection causes scheduling difficulties, operational inconveniences and unnecessary expenses
  • Unlike traditional inspection methods, with underwater laser scanning water tunnels can remain in service during inspection, enabling assessments to be conducted efficiently and effectively at no operational or customer inconvenience
Full Laser Scan Segment of City of Bellingham's Water Tunnel
ULS-200 on a Inuktun Crawler preparing to scan a tunnel

Water Wells

Water Well Risks

  • If water is leaking out of a well pipe, there is likely a poor connection, perforation, or crack in the pipe, which will cause the well pump to run more frequently and result in increased water usage
  • Leaks into a well casing are also problematic as groundwater will enter along with potentially difficult to remove contamination
  • Understanding the current state of geometry in the well is useful for new and retrofit construction, particularly in situations where there is poor documentation or damage to the pump may have occurred

Accurate Assessment

  • Wells are confined spaces, which makes them difficult to assess
  • The ULS-100 underwater laser scanner can be easily deployed inside wells to generate 3D point cloud models from which connection problems, perforations, or cracks can be precisely pinpointed and assessed
  • With the detailed knowledge obtained from the 3D models, repairs can be conducted more efficiently, effectively and accurately
Underwater Laser Scan of Well Pump and Surrounding Liner
ULS-100 being lowered into a well in order to perform a scan

As-Built Conditions

As-Built Construction

  • Obtaining accurate as-built information is critical. As-built surveys of new or retrofited underwater installations provide essential information for project commissioning
  • As-builts also provide detailed records of assets at the time of survey, which can be used as a baseline for future inspections

Complete Information

  • When compared to traditional methods for generating as-built models, underwater laser scanning enables much greater detail with higher resolution, higher accuracy point clouds
  • The resulting models are able to show millimeter level discrepancies between the as-built state and the initial design

As-Builts as an Added Benefit

  • When underwater laser scanning is employed for a specific measurement, such as metrology, the entire structure can be scanned without adding any time or cost to the project
  • This means that a model is generated, even when that was not the initial purpose of the campaign – ultimately providing useful as-built information in addition to the target measurements
Laser Scan of Oil Field Asset
Laser Scan of Drill Head

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