Presentation on theme: "Gord Parker, Spectrum External Line Inspection Technologies"— Presentation transcript:
1 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 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 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 XLI Survey Data Geodetic (Scalable GPS Receivers) GIS data - Land Use, State and Status- Right of Way InventoryDigital PhotographyPipeline Location, Depth of Cover, ACCACoating Condition Test (ACCA,ACVG,DCVG)Cathodic Protection (Annual Adjustive & CIS)Depth of WaterLeak SurveysLaser based inventory of off-pipeline structures.XLI does a spectrum of surveys:GPS can be anything from 5-8m single-ended to cm precision RTK. Sub meter standard.Inventory includes facilities, fixtures, test posts, rectifiers, access, crossings, power, ROW markers, etc.Annual / monthly adjustive.Client Configurable Level of DetailAll or some at same time.
5 Spectrum XLI System A comprehensive solution for ECDA Indirect Inspectionsand GIS data collection.Hardware and software designed for thecollection, analysis and reporting ofeXternal Line Inspectionsurvey data.* XLI is a term HM is coining for not only this system, but to summarize non-intrusive over-the-line surveys
6 GPSNow, one of the first bits of data people want to know about their pipelines.Where is it, where are the things around itYou can now easily measure the distances between points of interestThe basis of a Geographical Information System (GIS)
7 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 GISThe 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 ROWGIS functions may include integrity assm’t.Reports aiding maintenance planning, digs, mitigation are printed based on this data.
9 Data Collector PSION Workabout Pro G2 or the new iKön VGA (640x480) touch screen, Bluetooth,Internal 2M+ camera (iKon)
10 Intuitive Software Easy to understand, error correcting inputs Pull-down lists Targets to Walk To
11 Digital Photos A picture is worth 1,000 words. Document activity by ROW users, facility condition, landscaping, ROW overgrowth
13 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 Pipeline DOC Used correctly, a locator will be within 5% Modern ones do not require calibrationShallow pipe is a major threat to safetyDon’t forget to account for a radiusAll 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 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 Current Attenuation Graph Note dB mA - In the old daysyou had to do all this manually AND it was only 1 test.
18 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 Sonar / Water DepthFor 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 Leak Surveys Sensit LMD CH4 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 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 metallicProperly filtered voltmeter will not usually see effect of locate transmitter.
22 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 resistivityHaven’t found a device that measures these and has a communication method, so entry is also done manually.
23 Land Use, ROW Features Also very important to GIS - Inventory of: Facilities, valvesROW markers, aerial markersCP rectifiers, test posts,Land use, (arable cropland, native grasses, etc.)ROW access, slope, water bodies, roads, trails
24 Nearby Building / Population Laser Range Finders can give bearing, distance and elevation to nearby structuresAdd this to data collector as input sourceData Collector software features pull-down lists to classify structures, count population.PC software adds up to createHCA segments, count popl’n.1000m range, 0.1° resolution
25 Raw data logsCan provide additional data security and operator auditingRecords *all* inputs continually, showing where the operator was, when, speed, etc.
28 Report GenerationThis 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.