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© 2008 Spectrum External Line Inspection Technologies Inc. Spectrum XLI - Collect Multiple Indirect Inspection Results with One Pass Gord Parker, Spectrum.

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Presentation on theme: "© 2008 Spectrum External Line Inspection Technologies Inc. Spectrum XLI - Collect Multiple Indirect Inspection Results with One Pass Gord Parker, Spectrum."— Presentation transcript:

1 © 2008 Spectrum External Line Inspection Technologies Inc. Spectrum XLI - Collect Multiple Indirect Inspection Results with One Pass Gord Parker, Spectrum External Line Inspection Technologies (Based on presentation from NACE SIEO 2008 Winter meetings)

2 © 2008 Spectrum External Line Inspection Technologies Inc. PHMSA R&D Forum (Feb.06) Data Mining/Threat Assessment Topic “I would like a GPS meter that was designed to integrate with CIS, DCVG, Soil Resistivity, Depth of Cover and ACVG. All this equipment is separate and does not integrate. I have seen CIS meters collect GPS, but not post process sub-meter/sub-centimeter GPS. Since the actual location is in my opinion the most important feature, the GPS equipment should be the center piece to the data acquisition process.” Hart Smalley, Mears

3 © 2008 Spectrum External Line Inspection Technologies Inc. Multiple Indirect Inspections Field work is expensive & often frustrating. Since you’re there walking down the ROW, since all the groundwork has been laid (land owners, access, crews, vehicles, miles of trailing wire, etc.) you may as well make the most of it. Collect your core data *and* maybe extra data – share cost with other departments.

4 © 2008 Spectrum External Line Inspection Technologies Inc. XLI Survey Data Geodetic (Scalable GPS Receivers) GIS data - Land Use, State and Status - Right of Way Inventory Digital Photography Pipeline Location, Depth of Cover, ACCA Coating Condition Test (ACCA,ACVG,DCVG) Cathodic Protection (Annual Adjustive & CIS) Depth of Water Leak Surveys Laser based inventory of off-pipeline structures.

5 © 2008 Spectrum External Line Inspection Technologies Inc. Spectrum XLI System A comprehensive solution for ECDA Indirect Inspections and GIS data collection. Hardware and software designed for the collection, analysis and reporting of eXternal Line Inspection survey data.

6 © 2008 Spectrum External Line Inspection Technologies Inc. GPS Now, one of the first bits of data people want to know about their pipelines. Where is it, where are the things around it –You can now easily measure the distances between points of interest The basis of a Geographical Information System (GIS)

7 © 2008 Spectrum External Line Inspection Technologies Inc. Scaleable GPS There are 3 common levels of GPS accuracy –‘Single-ended’ (5-8m) – consumer & non- corrected ~$ –Sub-meter (better than 1m) – WAAS/OmniStar ~$ (sub-foot ~$7000+) –Centimeter (inch) – RTK correction ~$15,000+ XLI can use any desired source, usually ½ m.

8 © 2008 Spectrum External Line Inspection Technologies Inc. GIS The data collected is some of the data that can be used to ‘fill’ the database behind a Geographic Information System. Land use, features, water, etc. can all create or improve existing knowledge of the ROW GIS functions may include integrity assm’t. Reports aiding maintenance planning, digs, mitigation are printed based on this data.

9 © 2008 Spectrum External Line Inspection Technologies Inc. Data Collector PSION Workabout Pro G2 or the new iKön VGA (640x480) touch screen, Bluetooth, Internal 2M+ camera (iKon)

10 © 2008 Spectrum External Line Inspection Technologies Inc. Intuitive Software Easy to understand, error correcting inputs Pull-down lists Targets to Walk To

11 © 2008 Spectrum External Line Inspection Technologies Inc. Digital Photos A picture is worth 1,000 words. Document activity by ROW users, facility condition, landscaping, ROW overgrowth

12 © 2008 Spectrum External Line Inspection Technologies Inc. Dig Pictures

13 © 2008 Spectrum External Line Inspection Technologies Inc. Pipe Locator - SeekTech Locate Training is a must. Locator keeps you on top of the pipe while the GPS is collecting data. May also include other tests ACCA/ACVG. Locate position data may show up on data collector screen, reducing the number of devices you need to look at.

14 © 2008 Spectrum External Line Inspection Technologies Inc. Pipeline DOC Used correctly, a locator will be within 5% Modern ones do not require calibration Shallow pipe is a major threat to safety Don’t forget to account for a radius –All locators report depth to centerline, the XLI software does this calculation on the fly. SeekTech & RD communicate with data collector thus reducing data entry.

15 © 2008 Spectrum External Line Inspection Technologies Inc. ACCA Introduction AC Current Attenuation A method of determining coating quality from above ground. Simply: Current is generally lost where there are coating problems. Apply a known current and measure at distance intervals to see where it is lost. More loss/distance = worse coating. Current loss can also indicate unknown connections, insulator and casing problems

16 © 2008 Spectrum External Line Inspection Technologies Inc. Current Attenuation Graph

17 © 2008 Spectrum External Line Inspection Technologies Inc. Typical ACCA Survey Results

18 © 2008 Spectrum External Line Inspection Technologies Inc. ACVG AC Voltage Gradient *Very* sensitive for small coating defects. Like DCVG / Pin-to-pin / similar but uses a transmitter, not the CP DC. XLI has patented algorithms for sizing calculations based on 3 measurements.

19 © 2008 Spectrum External Line Inspection Technologies Inc. Sonar / Water Depth For water crossings, this is a very good way of finding both the depth of water and the depth of the pipe. Subtract the depth of water from pipe DOC to find depth of cover under water.

20 © 2008 Spectrum External Line Inspection Technologies Inc. Leak Surveys Sensit LMD CH 4 detector w/ serial data output. XLI Field Mouse records this data, giving a documented position and concentration. Records concentration continually. Self Calibration, no ‘span’ gas required. Continual self test. Very auditable trail of data

21 © 2008 Spectrum External Line Inspection Technologies Inc. CP Close Interval Surveys Now have processing power to show full waveform, –You can see full curve of interruption, ensure that period is suitable. Tag reading(s) as P/S, near ground, far ground, IR metallic Properly filtered voltmeter will not usually see effect of locate transmitter.

22 © 2008 Spectrum External Line Inspection Technologies Inc. Field Notes, pH, Resistivity Defined fields for text to accompany survey and/or be printed on reports. Fields for soil/electrolyte pH readings. Fields for soil resistivity –Haven’t found a device that measures these and has a communication method, so entry is also done manually.

23 © 2008 Spectrum External Line Inspection Technologies Inc. Land Use, ROW Features Also very important to GIS - Inventory of: –Facilities, valves –ROW markers, aerial markers –CP rectifiers, test posts, –Land use, (arable cropland, native grasses, etc.) –ROW access, slope, water bodies, roads, trails

24 © 2008 Spectrum External Line Inspection Technologies Inc. Nearby Building / Population Laser Range Finders can give bearing, distance and elevation to nearby structures Add this to data collector as input source Data Collector software features pull-down lists to classify structures, count population. PC software adds up to create HCA segments, count popl’n. 1000m range, 0.1° resolution

25 © 2008 Spectrum External Line Inspection Technologies Inc. Raw data logs Can provide additional data security and operator auditing Records *all* inputs continually, showing where the operator was, when, speed, etc.

26 © 2008 Spectrum External Line Inspection Technologies Inc. Putting it all Together

27 © 2008 Spectrum External Line Inspection Technologies Inc. Bringing Data into PC

28 © 2008 Spectrum External Line Inspection Technologies Inc. Report Generation This is what took a lot of time AND delayed both cash flow and acting on the data. Every hour of field work may take ½ to 2 hours of office work to compile the data and create meaningful charts & graphs. This is where programming has improved the process.

29 © 2008 Spectrum External Line Inspection Technologies Inc.

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31 Dig Lists After analysing data on PC, flag anomalies Upload back into field data collector Navigate back to guide dig / repair crews.

32 © 2008 Spectrum External Line Inspection Technologies Inc. Thank You Questions? Gord Parker, C.E.T. Spectrum XLI (Calgary, Alberta)


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