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Review of Condition Assessment   Technologies in Pipelines          Cliff Jones       February 23, 2012    LOOK BEFORE YOU...
Condition Assessment All pipes/ pipe materials leak All pipes can break     1 in 10 leaks will result in a break Indus...
Control Asset Usability   60% is National  Average Usability2 of 5 valves on average     are not usable
What our experience has taught us   40% of all water valves are unusable   12% of all hydrants are unusable; including  ...
Control Asset Usability“As-Designed”… three valves to control a main“As-Is”… five ++ valves to control a main             ...
So What? You can only replace or repair a certain  percentage of pipe each year. You still need to manage the system    ...
Investigator™Condition Assessment of In-Service Distribution Mains via Fire Hydrants
Investigator™ Technology   Simplified pipeline condition    assessment technology   Designed for distribution mains   N...
Quebec Ski Village – Saint Sauveur   Investigator™ inspection of low    pressure issues   6” and 12” metallic mains   I...
Buffalo Grove, IL   8” and 20” metallic mains   Over 20 insertions   Waterous hydrants                  Launch tube fla...
Montreal Suburb – Dollard des Ormeaux   Investigator™ inspection of    main prior to road re-paving   6”, 8”, 12” metall...
Texas Client was concerned about low flow  conditions in pipe and wondered about               tuberculation              ...
Operator Control   Simultaneous Video and AcousticClear PeakOver Leak Site
Client Issue   PVC pipe, up to 12 ft deep   Correlators and leak    sounding did not work   Turned to Investigator™    ...
Example 1   Concern about leak    under culvert                                                Two leaks discovered on ei...
Example 2   Water main installation issues identifiedVisible gasket with a tear at a             Significant debris in pi...
Example 3   Acoustic and video confirmation of leaks at two    pipe joints. Accurate leak locating with Sonde.           ...
Value of video     Visual identification of installation defects at      the Point of InterestKink in pipe wall and poor ...
Value of Investigator™ Video   Despite “blue wash” created by LED light reflection within    PVC pipe, in-line video clea...
Austin: Does a 36” BF Valve work           properly?                  Watching the valve operate                  from ins...
Additional Access PointsService Fittings    Ball Valves                    Flow Meter Entry Points and                    ...
In-Line Asset LocatingClosed gate valve              Identification and location (GPS) of                               un...
Tuberculation and Flow                      RestrictionsEarly stage of tuberculation build-   Early stage of tuberculation...
Tuberculation and Flow     RestrictionsSevere flow restrictions due to late stages of tuberculation build up.             ...
Joint InspectionCorrosion at cast iron pipe joint   Clean joint verification
Liner InspectionPost liner quality inspection and verification.  Prioritization of pipelines to rehabilitate.
Validating Leaks with                     InvestigatorTap located and confirmed not to be a leak   Change of material conf...
Visual Inspection for Signs of         Pipe Failure         Pipe wall cracks and failures
General InvestigationsContaminant in water main identified   Records indicated that pipe segment was(construction debris) ...
System Mapping          Critical for accurate uni-           directional flushing plans           and hydraulic modeling ...
Reports &Outputs
Condition Assessment    Information             Full data report on              inspection process,              locatio...
GIS Integration             Clickable GIS pipeline              attributes             GPS coordinates of              i...
Large Diameter Lines
LDS1000™Condition Assessment of Large Diameter Transmission Mains
LDS1000™ Technology   Designed for transmission mains   No disruption to service   Single pass acoustic, CCTV video and...
Process Overview
Access to Pipelines   2 inch (ID) tap   Existing Sahara chambers   Air valves   Service fittings   Gate valves   Pre...
Pipeline Inspection   Operator is in control at all    times   Operator has “eyes and ears”    in the pipe   Operator h...
Advanced Sensor Head   Sensor head allows for simultaneous    acoustic, CCTV and mapping/tracking   Greater locating acc...
Superior CCTV Image Quality   High quality CCTV image quality   Stable image due to patented    Agitator™ deployment sys...
No-Flow Process OverviewLow flow conditions or pipe crawlers can also be used to carry the LDS1000™                       ...
Key Specifications                                            Investigator   Pipe Material                            Any ...
Distribution System Confidence    to Make the Right Investments   Eliminates needs for excavations   Eliminates replacem...
Summary Inspection of all water distribution lines 2”  to 102”+ Identify issues internally Low cost first pass evaluati...
Thank YouQuestions?
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Wachs Water Full Service

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this presentation is a good overview of both of our core service offering and our pipeline condition assessment and inspection program

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Wachs Water Full Service

  1. 1. Review of Condition Assessment Technologies in Pipelines Cliff Jones February 23, 2012 LOOK BEFORE YOU DIG!!
  2. 2. Condition Assessment All pipes/ pipe materials leak All pipes can break  1 in 10 leaks will result in a break Industry figures show you can expect to find one leak a mile in DI or CI transmission mains (>16”) Condition assessment helps you proactively manage pipelines Control helps you reduce the cost of main breaks
  3. 3. Control Asset Usability 60% is National Average Usability2 of 5 valves on average are not usable
  4. 4. What our experience has taught us 40% of all water valves are unusable 12% of all hydrants are unusable; including inadequate flow 11% of all valves are paved over 9% of all distribution valves are found in the wrong position: shut & open Spatial offsets > 30 feet
  5. 5. Control Asset Usability“As-Designed”… three valves to control a main“As-Is”… five ++ valves to control a main Find the (right) valve Access the right valve Shut/open the right valve
  6. 6. So What? You can only replace or repair a certain percentage of pipe each year. You still need to manage the system  What happens to the other 95%? Condition Assessment and Repair of a pipeline is typically 10-12% of the replacement cost. If the technology or the repair is such that this number grows to >25% - you should replace the line
  7. 7. Investigator™Condition Assessment of In-Service Distribution Mains via Fire Hydrants
  8. 8. Investigator™ Technology Simplified pipeline condition assessment technology Designed for distribution mains Non destructive inspection No disruption to service Single pass acoustic, CCTV video and sonde mapping In-line system increases accuracy
  9. 9. Quebec Ski Village – Saint Sauveur Investigator™ inspection of low pressure issues 6” and 12” metallic mains Identified significant tuberculation build-up on 6” line Validated that 12” line was in good condition 9 insertions completed with average distance of 150 feet Provided utility with information to target CIP investments on problem areas
  10. 10. Buffalo Grove, IL 8” and 20” metallic mains Over 20 insertions Waterous hydrants Launch tube flange option allows for: Correction of as-built drawings - Longer distance inspections Pre-construction valve asset - Larger diameter main inspections identification (road paving) Wachs Water Services can conduct hydrant Pipeline diameter confirmation maintenance in parallel with water main inspections Visual, in-line valve exercising
  11. 11. Montreal Suburb – Dollard des Ormeaux Investigator™ inspection of main prior to road re-paving 6”, 8”, 12” metallic lines installed in 1960’s 5 insertions on lined and unlined pipe One line had substantial sediment and we validated Tuberculation at T-joint need for flushing program Lined main in good condition but tuberculation identified on unlined T-joints Cable insertions averaged 15 to 180 feet depending on internal pipe conditions Liner in good condition
  12. 12. Texas Client was concerned about low flow conditions in pipe and wondered about tuberculation Photo taken of inspection screen – Showing magnesium mineral deposits
  13. 13. Operator Control Simultaneous Video and AcousticClear PeakOver Leak Site
  14. 14. Client Issue PVC pipe, up to 12 ft deep Correlators and leak sounding did not work Turned to Investigator™ Acoustic/CCTV in-line technology 31 insertions through fire hydrants (top insertion) Each insertion inspected up to 600ft of main Pressure in pipe ranged from 75 to 180 PSI
  15. 15. Example 1 Concern about leak under culvert Two leaks discovered on either side of a T-joint at a depth of 18ft leading to 18ft the culvert. Investigator™ was able to clearly distinguish individual leak sounds prior to challengingInvestigator™ confirmed that there was excavation/repair.no leak under culvert…but…
  16. 16. Example 2 Water main installation issues identifiedVisible gasket with a tear at a Significant debris in pipe despitemisaligned pipe joint. Leak identified at flushing and cleaning resulted in waterhigher pressures. quality issues.
  17. 17. Example 3 Acoustic and video confirmation of leaks at two pipe joints. Accurate leak locating with Sonde. Sonde Mark Leak
  18. 18. Value of video  Visual identification of installation defects at the Point of InterestKink in pipe wall and poor joint connection. Joint gaskets exposed over 3 consecutiveNo current leak. pipe sections. No current leak.
  19. 19. Value of Investigator™ Video Despite “blue wash” created by LED light reflection within PVC pipe, in-line video clearly identified:  Pipe joints  Valves (A) B  T-joints A  Repairs  Gaskets  Wall kinks (B)  Air pockets  Debris - mud and rocks (C)  Grease at joint connections  Cloudy and clear water conditions C
  20. 20. Austin: Does a 36” BF Valve work properly? Watching the valve operate from inside the pipe
  21. 21. Additional Access PointsService Fittings Ball Valves Flow Meter Entry Points and any Direct TapingAir Valves
  22. 22. In-Line Asset LocatingClosed gate valve Identification and location (GPS) of undocumented valve
  23. 23. Tuberculation and Flow RestrictionsEarly stage of tuberculation build- Early stage of tuberculation build-up at pipe joints and lips up at pipe joints
  24. 24. Tuberculation and Flow RestrictionsSevere flow restrictions due to late stages of tuberculation build up. Leads to pressure loss.
  25. 25. Joint InspectionCorrosion at cast iron pipe joint Clean joint verification
  26. 26. Liner InspectionPost liner quality inspection and verification. Prioritization of pipelines to rehabilitate.
  27. 27. Validating Leaks with InvestigatorTap located and confirmed not to be a leak Change of material confirmed not to be a leak as identified by correlation
  28. 28. Visual Inspection for Signs of Pipe Failure Pipe wall cracks and failures
  29. 29. General InvestigationsContaminant in water main identified Records indicated that pipe segment was(construction debris) after water lined, investigation proved otherwise.quality complaints.
  30. 30. System Mapping  Critical for accurate uni- directional flushing plans and hydraulic modeling  Confirmation of as-built drawings  Pre-construction planning  Emergency shut-down planning  Asset mapping of PVC pipe can only be done from inside of pipe
  31. 31. Reports &Outputs
  32. 32. Condition Assessment Information  Full data report on inspection process, location and findings  Still photos, Video and audio provided on CD/ DVD  Coming soon - Tuberculation accumulation grading
  33. 33. GIS Integration  Clickable GIS pipeline attributes  GPS coordinates of insertion points  Electronic and acoustic MPEG links  Confirmation of distance inspected from location points
  34. 34. Large Diameter Lines
  35. 35. LDS1000™Condition Assessment of Large Diameter Transmission Mains
  36. 36. LDS1000™ Technology Designed for transmission mains No disruption to service Single pass acoustic, CCTV video and sonde mapping/tracking In-line system increases accuracy Builds on in-line leak detection system developed by WRC over 15 years Global projects completed in US, Canada, England, Philippines and Australia
  37. 37. Process Overview
  38. 38. Access to Pipelines 2 inch (ID) tap Existing Sahara chambers Air valves Service fittings Gate valves Pressure taps
  39. 39. Pipeline Inspection Operator is in control at all times Operator has “eyes and ears” in the pipe Operator has ability to stop to look at features Inspection typically occurs during implementation & pull back Increases inspection accuracy and minimize false/positives
  40. 40. Advanced Sensor Head Sensor head allows for simultaneous acoustic, CCTV and mapping/tracking Greater locating accuracy as system does not rely on stationed pinging Patented Agitator™ deployment system uses flow of water to push sensor in less turbulent zone around pipe wall Turbulent Result is increased inspection Zone efficiencies which reduces cost
  41. 41. Superior CCTV Image Quality High quality CCTV image quality Stable image due to patented Agitator™ deployment system No need for post processing – see immediate results Lighting optimized for large diameter mains CCTV signal quality does not degrade due to cable limitations
  42. 42. No-Flow Process OverviewLow flow conditions or pipe crawlers can also be used to carry the LDS1000™ cable/sensor down the pipeline.
  43. 43. Key Specifications Investigator Pipe Material Any Typical Pipe Diameter* 16” + Tap Requirement 2” (ID) Minimum Flow 0.75 ft/sec* Maximum Flow 10 ft/sec Maximum Pressure 240 PSI Inspection Distance 3,200 ft Degrees of bends >180 * LDS1000™ can operate in a wide variety of flow conditions. Operation can beachieved in even lower flow conditions but distance and bends capabilities will change.
  44. 44. Distribution System Confidence to Make the Right Investments Eliminates needs for excavations Eliminates replacement/lining of pipes that are still in good condition Allows for comparison of pipeline degradation over time Provides understanding of actual pipe condition Maximize aging infrastructure investments
  45. 45. Summary Inspection of all water distribution lines 2” to 102”+ Identify issues internally Low cost first pass evaluation Lines remain in service Look Before You Dig!!
  46. 46. Thank YouQuestions?

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