GIS and theG S and theASME B31.8s

J h Li h GISPJohn Linehan, GISPEnbridge Energy Company

Houston, TXESRI PUG PresentationESRI PUG Presentation

26 Feb 2008

What is the ASME B31.8S?What is the ASME B31.8S?

The manual: Managing System IntegrityThe manual: Managing System Integrity of Gas Pipelines

Contains 5 main elements for managing pipeline integrity:

Performance PlanCommunication PlanM t f Ch PlManagement of Change PlanQuality Control PlanIntegrity Management PlanIntegrity Management Plan

Performance PlanPerformance Plan

Periodic evaluation of integrity assessmentPeriodic evaluation of integrity assessment techniques.Implementation of new technologiesp gEvaluation of management effectiveness

Communications PlanCommunications Plan

Effective communication about companyEffective communication about company integrity management efforts with:

First responderspEmployeesLocal authoritiesJurisdictional authoritiesGeneral Public

Management of Change PlanManagement of Change Plan

Ensure prior to implementation, changes toEnsure prior to implementation, changes to pipeline systems, operational methods, and maintenance are evaluated for potential risk.Ensure that latest system configuration is used in future evaluations.Provide feedback for design and operation

Quality Control PlanQuality Control Plan

DocumentationDocumentationAuditingInspectionInspectionMitigationPreventionPrevention

Integrity Management PlanIntegrity Management Plan

Includes detection, prevention, and mitigationIncludes detection, prevention, and mitigation practicesDocuments the execution of steps and panalysis used in assessmentSchedulinggMulti-threat evaluation and practicesRisk rankings a g

What is RISK?What is RISK?

R = P * CR = P * CRisk is the mathematical product of the

Probability of failure and the Consequences that result from failure.

The goal of a Risk Management Plan is to d ith th b bilitreduce either the probability or consequence

or both.

Where does GIS fit?Where does GIS fit?

Spatial analysisSpatial analysisThreat analysisMaintenance and mediationMaintenance and mediationCommunication

ReportingReportingMapsDocuments

Data storage

Threats to the PipelineThreats to the Pipeline

Third Party Damagey gCorrosion RelatedEquipmentq pIncorrect OperationWeatherManufactureConstructionEnvironmentOutside Forces

Third Party DamageThird Party Damage

Damage to a pipeline by an outside party other

Examples Supported by GIS

Damage to a pipeline by an outside party other than those performing work for the operator.

ExamplesRoad Maintenance

Supported by GISRight of WayDOT Class

Horizontal Drilling

DOT ClassOne Call clustering

Excavations CrossingsEncroachments

Corrosion RelatedCorrosion RelatedDamage resulting from chemical, galvanic, or

i bi l i l i fl d imicrobiological influenced corrosion.

Examples:PittingRust

GIS SupportDefect mappingCathodic ActivityRust

MicrobialMetal LossC th di

Cathodic ActivityDirect AssessmentPressure TestR iCathodic Repair CouponCoating

EquipmentEquipment

Pipeline facilities other than pipe and pipePipeline facilities other than pipe and pipe components.

Examples:Gaskets / O-ringsValve seals

GIS SupportValve locationMeter SitesValve seals

Control / ReliefMeters / Regulators

Meter SitesCompressorsZones of Control

Compressors

ManufactureManufacture

Pipe and pipe components.Pipe and pipe components.

Examples:Mill ProcessSeam

GIS SupportCenterline mappingJoints / WeldsSeam

AgeJoint

Joints / WeldsDiameter Wall Thickness

Specification Pressure History

ConstructionConstruction

Damage or deformation of pipe or pipeDamage or deformation of pipe or pipe components during construction.

Examples:Wrinkle BendsBroken Pipe

GIS SupportInflection PointsElevation changesBroken Pipe

CouplingsWelds

Elevation changesJoint ReinforcementWeld Information

Fabrication Re-routingRepair History

EnvironmentEnvironment

Threats related to ‘normal’ operation of theThreats related to normal operation of the pipeline.

Examples:Stress CrackingTemperature

GIS SupportCompressor LocationOperating PressureTemperature

PressureCoating

Operating PressureCoatingInstrument Data

CompressionBlack Powder

Cleaning PigsChemical Inhibitors

Incorrect OperationIncorrect Operation

Failure to follow procedures.Failure to follow procedures.

Examples:TemperaturePressure

GIS SupportInstrument LocationDischarge LinesPressure

RepairsProduct Content

Discharge LinesLeak / RepairProduct SourceHistory

Weather RelatedWeather Related

Damage caused by precipitation, temperature,Damage caused by precipitation, temperature, or lightning.

Examples:FloodingFreeze

GIS SupportWeather MappingLightning Strike MapFreeze

Lightning Hail

Lightning Strike MapFlood PlainDrainage Patterns

Tornado / Hurricane History

Outside Force RelatedOutside Force Related

Damage caused by natural force.Damage caused by natural force.

Examples:SlumpingEarthquake

GIS SupportGeologic MappingFault Line MapEarthquake

Erosion Fault Line MapSoil TypeMining / TunnelingHistory

ConsequencesConsequences

Human injury or fatalityHuman injury or fatalityProperty damageLoss of serviceLoss of servicePublic imageEconomicEconomic

Estimating ConsequencesEstimating Consequences

Applying methods to calculate potentialApplying methods to calculate potential consequence.

Examples:Potential Impact Radius

GIS SupportCenterlineStructures

High Consequence AreasP bli A

StructuresDOT ClassHCA Zones

Public Awareness One Call

PIR BufferOne Call ClusteringLand UseLand Use

Calculating RiskCalculating Risk

GIS holds dataGIS holds data Dynamic segmentedOrganizedOrganizedManaged

RISK Assessment tools evaluate dataRISK Assessment tools evaluate dataAssign probability ranking to each threatAssociate threats with consequence areasq

Calculate Risk = Probability * ConsequenceUpdate Integrity Management PlanUpdate Integrity Management Plan

ConclusionConclusion

GIS database is ideal for storing informationGIS database is ideal for storing information necessary to evaluate ThreatsSpecific items are listed in the ASME 31.8S pthat are used in determining a ThreatGIS is used to calculate spatial information pfor PIR, HCA , and DOT areas.Quality of information may alter ranking of a Threat, thus changing the overall Risk of a pipeline

Thank You

GIS and the ASME B31 8ASME B31.8s

J h Li h GISPJohn Linehan, GISPEnbridge Energy Company

Houston, TXjohn linehan@enbridge comjohn.linehan@enbridge.com

713 353 6384