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Maintaining Pipeline Integrity with GIS & Smart Pig Data Analysis Taryn Moser, GIS Technician II 4/28/2016
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2 One of Appalachia’s leading natural gas E&P companies 125+ years successful operations Active in PA, WV, KY, VA, OH & TX 1,900+ employees 2015 Operating Income: $563.1M Safety – Our first priority Zero-injury culture Uncompromising on safety Everyone goes home safely Integrated production and midstream operations Production explores and drills natural gas wells Midstream transports, stores, and markets gas EQT at a Glance
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3 2015 Operating Income of $563.1 million Leading Appalachian E&P Company 10.0 Tcfe proved reserves 3.4 MM acres 9,100 pipeline miles As of 12/31/15
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4 Safe, responsible, low-cost producer More than 13,400 active wells 10.0 Tcfe of proved reserves across 3.4 million gross acres Industry leading cost structure The Marcellus Shale is a key driver of EQT’s growth strategy Innovative drilling techniques Multi-well drill sites = smaller environmental footprint Horizontal wells can exceed 10,000’ = more development of previously unrecoverable reserves Production – Innovative Development As of 12/31/15
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5 EQT Midstream (includes EQT Midstream Partners) 9,100 miles of pipeline 900 miles of FERC-regulated interstate pipeline 8,250 miles of gathering lines Transmission and Storage 3.5 Bcf/d current capacity 47 Bcf gas storage capacity Marcellus Gathering (PA and WV) 2.0 Bcf/d capacity Midstream Operations – Extensive & Growing As of 12/31/15
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6 EQT Midstream Partners, LP EQT formed the MLP in 2012 Transmission and Storage 900 miles of FERC-regulated interstate pipeline (200 miles leased from EQT) 3.1 Bcf/d current capacity 32 Bcf of gas storage capacity Gathering 185 miles of high pressure pipeline 1,500 miles of FERC-regulated low pressure pipeline New projects in development EQT GP Holdings, LP EQT formed the MLP in 2015 EQT owns 90% LP interest Midstream Operations – Extensive & Growing As of 12/31/15
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7 Headquarters and field offices Responsible for: GPS maintenance/troubleshooting ROW maintenance and monitoring Data creation and analysis GIS Technicians support: Land Gas Systems Planning Compliance Measurement Business Development Environmental Tax and Accounting EQT Energy GIS Department
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8 DOT regulations require Smart Pigging every 7 years Every pipeline regulated by the DOT must be piggable EQT has been installing pig launchers and receivers on older pipelines for years EQT designs all new pipe to have a launcher at one end and a receiver at the other New pipelines are also designed with piggable turns of 45 degrees or less (smart pigs can’t make sharp curves) Pipeline Safety Inspections
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9 Smart Pigs look for threats to pipeline integrity Gouging, Denting, Cracking, and Corrosion Sensors identify the location of changes in pipe thickness All data is stored on the smart pig for future retrieval Pipeline Inspection Gauges (PIGs)
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10 Collected data is converted to a point shapefile The data and above ground markers (AGM) identify actual pig location The pigged pipeline data is exported for analysis GIS Data Analysis Process
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11 EQT’s GIS Department uses the ArcGIS application to: Generate a grid Create a detailed map Visualize the distance from the pig data to the line position Map the data analysis GIS Data Analysis Process - continued
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12 GIS Data Analysis Process - continued
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13 We know where the pipeline is, but what is the actual depth of the bore? How EQT uses GIS Data Analysis - Examples
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14 Why did the pig, or its data, go that way? How EQT uses GIS Data Analysis - Examples
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15 Questions?
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