Pipeline Integrity Management

MATERIALS SELECTION & DESIGNMATERIALS PERFORMANCE - NACE

Larry G. RankinCorrpro Companies, Inc

Compiled by:Juan Alfaro C

Pipeline Integrity ManagementPipeline Integrity Management

Pipeline Operators must implementtightly structured pipeline integritymanagement programs.

Expected results are:

a) Reduce Risks of peopleb) Reduce Risks propertyc) Reduce hazards to environment.

Pipeline Integrity ManagementPipeline Integrity Management

A key element of an integrity managementprogram is the integration of informationpertinent to pipeline integrity.

HCA: High Consequence AreaIMP : Integrity Management Program PSI : Pipeline System InformationGPS: Global Positioning System.ILI : In line Inspection

Pipeline Integrity ManagementPipeline Integrity Management

Minimum Elements and Requirements of IMP

Written IMPHCA segments identificationBaseline Assessment plan & scheduleBaseline assessmentsInformation data integrationInformation data analysis

Pipeline Integrity ManagementPipeline Integrity Management

Risk factor assignmentsRisk determinationsDefect identification and repairOther remedial & preventive actionsContinual program improvementContinual integrity assessment.

Pipeline Integrity ManagementPipeline Integrity Management

Construction

Operation Maintenance

Pipeline system Information Required

Pipeline Integrity ManagementPipeline Integrity Management

Construction:

Pipe material specificationsPipe manufacturing informationPipeline design informationPipe type, welded, seamless, etcDiameterGradeSpecific minimun yield strengthWall thickness

Pipeline Integrity ManagementPipeline Integrity Management

Valves, flanges, elbows, etcCivil survey and mappingDate of constructionPipe handlingExternal coatingJoint coatingsConstruction techniquesBackfill materials

Construction: Cont.

Pipeline Integrity ManagementPipeline Integrity Management

Construction: Cont.

Depth of coverElectrical isolation pointsConstruction inspectionHydrostatic testing and dryingTerrain and soil typesGeology hazards

Pipeline Integrity ManagementPipeline Integrity Management

Operation:

Product transportedProduct qualityMaximum operating pressureOperating stress levelHydraulic gradientesLeak surveys and historyCP surveys and historyInternal corrosion survey and historyProduct flow regimeCleaning pig history

Pipeline Integrity ManagementPipeline Integrity Management

Operation: Cont.

Chemical Treatment historyElectrical interference, CPSurveillance and patrolsSecurity, fencing, locks, etcEmergency response.Third party notices and educationPublic notices and educationOperator training and qualifications

Pipeline Integrity ManagementPipeline Integrity Management

Maintenance:

Hydrostatic testingILIsExternal corrosion direct assessmentsInternal corrosion direct assessmentsStress corrosion cracking (SCC)Defect evaluations.Pipe replacements and repairs

Pipeline Integrity ManagementPipeline Integrity Management

Maintenance: Cont.

Cased pipe remedial workPipeline lowering and relocatingExposed pipe cover repairCoating repairsCP improvementsMarkers and signsRight-of-way mowing

Pipeline Integrity ManagementPipeline Integrity Management

Material and Construction Defects

Threats to Pipeline Integrity

Defective longitudinal pipe seamDefective pipe bodyDefective joints weldsOther defective welds and fabricationsWrinkle bendsBuckled pipeIndequate support

Pipeline Integrity ManagementPipeline Integrity Management

Mechanical Damage

Threats to Pipeline Integrity

Construction damageMaintenance damageThird-party damageaccidental damage by publicVandalimsTerrorismFallen trees

Pipeline Integrity ManagementPipeline Integrity Management

Operations

Threats to Pipeline Integrity

Incorrect operationsIncorrect operating procedures

Earth Forcers

ErthquakesLand slipsSubidence and settlementTelluric currents

Pipeline Integrity ManagementPipeline Integrity Management

Corrosion and Cracking Mechanisms

Threats to Pipeline Integrity

External CorrosionInternal CorrosionAtmospheric CorrosionMicrobiologically influenced corrosionSCCOther Cracking mechanismsEnvironmental Contamination.

Pipeline Integrity ManagementPipeline Integrity Management

Device Failures and Malfunctions

Threats to Pipeline Integrity

Flange gaskets and o-ring leaksPacking and seal leaksPipe coupling failurescontrol equipment malfunctionRelief equipment malfunctionsInoperative valvesElectric power valvesCP system failures

Pipeline Integrity ManagementPipeline Integrity Management

Weather - Related

Threats to Pipeline Integrity

High windsRough seasCold and hot temperaturesLightning strikesHeavy rains and floodings

OTHERS:Anomalies inside or near casingsAnomalies at pipeline crossingAnomalies in areas with suspect CP

Pipeline Integrity ManagementPipeline Integrity Management

Conclusions / Recommendations

Continue with our externalinspections, evaluations &Repairs.

Specific Software for a complete PIMHandle by an external advisor.