Maintaining Pipeline Integrity with - PowerPoint Presentation

Slide1

Maintaining Pipeline Integrity with GIS & Smart Pig Data Analysis

Taryn

Moser,

GIS Technician

II

4/28/2016Slide2

One

of Appalachia’s

leading natural gas E&P companies125+ years successful operationsActive in PA, WV, KY, VA, OH & TX1,900+ employees 2015 Operating Income: $563.1M Safety – Our first priorityZero-injury cultureUncompromising on safetyEveryone goes home safelyIntegrated production and midstream operationsProduction explores and drills natural gas wellsMidstream transports, stores, and markets gas

EQT at a GlanceSlide3

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 12/31/15Slide4

Safe, responsible, low-cost

p

roducerMore than 13,400 active wells10.0 Tcfe of proved reserves across 3.4 million gross acresIndustry leading cost structureThe Marcellus Shale is a key driver of EQT’s growth strategyInnovative drilling techniquesMulti-well drill sites = smaller environmental footprintHorizontal wells can exceed 10,000’ = more development of previously unrecoverable reservesProduction – Innovative Development

As of 12/31/15Slide5

EQT Midstream (

includes

EQT Midstream Partners)9,100 miles of pipeline900 miles of FERC-regulated interstate pipeline8,250 miles of gathering linesTransmission and Storage3.5 Bcf/d current capacity47 Bcf gas storage capacityMarcellus Gathering (PA and WV)2.0 Bcf/d capacityMidstream Operations – Extensive & GrowingAs of 12/31/15Slide6

EQT Midstream Partners, LP

EQT formed the MLP

in 2012Transmission and Storage900 miles of FERC-regulated interstate pipeline (200 miles leased from EQT)3.1 Bcf/d current capacity32 Bcf of gas storage capacityGathering185 miles of high pressure pipeline1,500 miles of FERC-regulated low pressure pipelineNew projects in development

EQT GP Holdings,

LP

EQT formed the MLP in

2015

EQT owns 90% LP interestMidstream Operations – Extensive & GrowingAs of 12/31/15Slide7

Headquarters and field offices

Responsible for:

GPS maintenance/troubleshootingROW maintenance and monitoringData creation and analysisGIS Technicians support:LandGas Systems PlanningComplianceMeasurementBusiness DevelopmentEnvironmentalTax and AccountingEQT EnergyGIS DepartmentSlide8

DOT regulations require Smart Pigging every 7 years

Every pipeline regulated by the DOT must be

piggableEQT has been installing pig launchers and receivers on older pipelines for yearsEQT designs all new pipe to have a launcher at one end and a receiver at the otherNew pipelines are also designed with piggable turns of 45 degrees or less (smart pigs can’t make sharp curves) Pipeline Safety InspectionsSlide9

Smart Pigs look

for

threats to pipeline integrityGouging, Denting, Cracking, and CorrosionSensors identify the location of changes in pipe thicknessAll data is stored on the smart pig for future retrievalPipeline Inspection Gauges (PIGs)Slide10

Collected data is

converted to a point shapefile

The data and above ground markers (AGM) identify actual pig locationThe pigged pipeline data is exported for analysisGIS Data Analysis ProcessSlide11

EQT’s GIS Department uses the ArcGIS application to:

Generate a

gridCreate a detailed map Visualize the distance from the pig data to the line positionMap the data analysisGIS Data Analysis Process - continuedSlide12

GIS Data Analysis Process - continuedSlide13

We know where the pipeline is, but what is the actual depth of the bore?

How EQT uses GIS Data Analysis - ExamplesSlide14

Why did the pig, or its data,

g

o that way?How EQT uses GIS Data Analysis - ExamplesSlide15

Questions?Slide16