A Long Term Solution for Addressing the Tracking and Traceability Regulations at Questar Gas

Distribution, Transmission and E&P 1M customers in Utah, southwestern Wyoming and a small portion of southeastern Idaho Distribution, Transmission and E&P Acquisition by Dominion Resources completed Sept 16, 2016 Tren

As-Built Construction Solution Esri ArcGIS for Server and CartoPac Software Trimble GPS and Antenna VRS: Real time 4” Spatial Accuracy Laser Range Finders 80 plus Inspectors 68,000 Services & 2,050 miles of Mains Tren

Goals for Bar Codes Extension of current GPS As-built solution Support Separate Bar Code Scanner Blue tooth to Trimble Geo Device Device in the Ditch Need IP rating Scan and Decode barcode on the Mobile Device Glenn

Bar Code Scanning for Plastic Pipe and Fittings ATSM Standard Several Attributes displayed to field user for verification All the data uploaded back to GIS Glenn

Challenges in Bar Code Scanning Separate Device to scan the actual bar code as constructed Scanning in Bright Sunlight, Filtered Light and Shade Location of Bar Codes on Pipe and Fittings Stick Pipe – Only one bar code Insufficient Information in the Standard to support complete mapping at Questar Tren

Additions to Bar Code for Mapping Tren

Bar Code Support for Directional Drill The Majority of Replacement Work at Questar is Directional Drill What Problem is Questar Solving by going this Direction? Only way we can guarantee that a bar code is associated with this piece of pipe is to go this direction Anticipate that this will cover regulations coming down the line In addition to the points based solution- Photo from Tren

Prior to Installation Birds Eye View Bar Code on each section of pipe scanned Fusion –Welds Calculated based on segment length Index for order of assembly recorded Glenn

Mapping Location Points Dept of Cover –DOC DOC = 4.5 DOC = 4.6 Glenn DOC = 3.5 DOC = 4.5

Calculating Bore and Location Points Depth of Cover Depth of Cover Depth of Cover Calculates total length of installed pipe Location Calculated for each weld-fusion Location and bar code calculated for each pipe segment Bore Hole Video

Long Term Bar Code Benefits Included for Multiple Workflows Gas Distribution As-Built Horizontal Bore High Pressure - 2017 Bar Code plus other attributes for complete mapping Internal Solution Support – Vendor independent Stationing – Pull chain from known locations to locate asset Tren

Questions

Contact Information Tren Giles- Project Operations Manager Tren.giles@questar.com 801-324-3352 Glenn Vlass – CartoPac International Glenn.vlass@cartopac.com 970-227-2361 Questar has made the solution components and workflows available for other companies to leverage from.