References | Pipeline Integrity Guidance Tool | Gustafson Integrity Services

Corrosion

4 references

In-Line Inspection of Pipelines

AMPP / NACE

Short summary: Reference material related to selecting, planning, and interpreting in-line inspection programs.
Applicability: Useful for corrosion review context, inspection capability questions, and understanding tool limitations.
Limitations: Provides broad inspection context rather than a topic-by-topic workflow for every anomaly.
Notes: Helpful companion for conversations about whether the inspection method supports the intended conclusion.
Related topics: general metal loss circumferential corrosion data quality ili review

Manual for Determining the Remaining Strength of Corroded Pipelines

ASME

Short summary: Common corrosion assessment reference used to support remaining-strength thinking and corrosion response framing.
Applicability: Most useful for general metal loss, axial corrosion, pitting, and corrosion screening discussions.
Limitations: Included here only as reference context. This app does not perform calculations and users should follow approved company procedures.
Notes: Helpful when engineers need to remember which corrosion geometry questions are likely to matter next.
Related topics: general metal loss axial corrosion pitting dent with metal loss

Corroded Pipelines Recommended Practice (DNV-RP-F101)

DNV

Short summary: Corrosion assessment guidance covering single defects, interacting defects, complex corrosion shapes, and remaining-strength thinking for corroded pipelines.
Applicability: Most useful for corrosion-oriented topics such as general metal loss, axial corrosion, circumferential corrosion, pitting, interacting metal loss, and corrosion interaction cases where profile and grouping matter.
Limitations: This is corrosion-focused guidance and does not by itself resolve dent interaction, crack-like threats, or other non-corrosion damage mechanisms.
Notes: Helpful when engineers want a DNV corrosion-assessment reference beyond B31G-style screening and need more context for interacting or irregular metal-loss features.
Related topics: general metal loss axial corrosion circumferential corrosion pitting interacting metal loss corrosion colony cluster dent with metal loss

Modified B31G / RSTRENG Method References

Industry Practice

Short summary: Widely used corrosion-profile methodology references that support interaction and profile-based corrosion review.
Applicability: Most relevant to interacting metal loss, irregular corrosion morphology, and grouping decisions.
Limitations: Use only through approved company workflows and software implementations; the method still depends on reliable profile data.
Notes: Helpful when the practical question is whether multiple corrosion features should be viewed together.
Related topics: general metal loss axial corrosion interacting metal loss pitting

Cracking and SCC

2 references

Stress Corrosion Cracking Direct Assessment

AMPP / NACE

Short summary: Structured SCC assessment guidance covering susceptibility context and prioritization logic.
Applicability: Most useful when reviewing SCC susceptibility, colony context, and targeted validation planning.
Limitations: Does not replace crack ILI qualification or company-specific validation protocols.
Notes: Good for reminding engineers to check susceptibility context instead of relying on a signal label alone.
Related topics: scc review crack like feature strain concern

Assessment and Management of Cracking in Pipelines

API

Short summary: Practical cracking management guidance spanning crack threats, susceptibility, validation, and response planning.
Applicability: Useful for crack-like indications, SCC review, seam-related threats, and weld-associated dents with cracking concern.
Limitations: Not a substitute for company-specific crack management procedures or specialist review.
Notes: A strong routing reference when the engineer needs to move from a general anomaly screen into a crack workflow.
Related topics: crack like feature scc review seam weld concern dent at weld

Dents and Mechanical Damage

2 references

Dent Assessment and Management Guidance

API

Short summary: Guidance for understanding dent types, interacting conditions, and practical data needs for dent review.
Applicability: Best for plain dents, dent at weld, dent with metal loss, and dent/strain interaction context.
Limitations: This app uses it as guidance context only; actual response criteria should follow approved company procedures.
Notes: Particularly useful for deciding what additional context matters beyond dent depth.
Related topics: dent dent at weld dent with metal loss strain concern

Dent Integrity Management Guidance

API

Short summary: Structured dent-management guidance covering dent classification, interaction awareness, data needs, and practical review pathways.
Applicability: Most useful for dent-centric screening, dent interaction questions, and field verification planning.
Limitations: Not a substitute for operator-specific repair criteria or specialist assessment on complex mechanical damage.
Notes: Useful when standardizing how dent workflows are documented across the site.
Related topics: dent dent at weld dent with gouge mechanical damage dent with crack like indicators

Data Quality and ILI

2 references

In-line Inspection Systems Qualification Standard

API

Short summary: Foundational guidance for understanding ILI system qualification, performance, validation, and responsible use of inspection outputs.
Applicability: Useful for data quality checks, feature confidence review, matching questions, and any topic driven by ILI limitations.
Limitations: This is a qualification and use framework, not a defect-specific engineering decision tool by itself.
Notes: Use this as the backbone for understanding what the inspection data can and cannot support.
Related topics: general metal loss crack like feature data quality ili review unknown unclassified feature

Pipeline Data Quality and Reconciliation Practices

Internal / Program Guidance

Short summary: Placeholder entry for company or program-level practices covering reconciliation, validation, and data governance.
Applicability: Useful for classification uncertainty, matching issues, and when decisions depend on reconciling multiple data sources.
Limitations: Replace this placeholder with your organization’s actual SOP or governance document.
Notes: Intended as a slot for the local team’s own ILI and integrity data-quality workflow.
Related topics: data quality ili review unknown unclassified feature general metal loss

Regulatory and Cross-Discipline

5 references

Managing System Integrity for Hazardous Liquid Pipelines

API

Short summary: Integrity-management guidance that supports anomaly prioritization, remediation planning, documentation quality, and defensible workflow for hazardous liquid systems.
Applicability: Useful when operators need process discipline around evaluation, dig planning, repair scheduling, and record quality, especially on hazardous liquid systems.
Limitations: Guidance context only. It is not itself the enforceable repair timing rule, and it is less directly applicable to gas transmission than liquid integrity management workflows.
Notes: Helpful for showing how anomaly evaluation fits into a broader integrity-management program and remediation process.
Related topics: dent with metal loss river crossing movement landslide slope movement data quality ili review

Fitness-For-Service (API 579-1/ASME FFS-1)

API / ASME

Short summary: Broad fitness-for-service guidance that helps frame damage mechanisms, assessment pathways, documentation discipline, and escalation beyond simple screening methods.
Applicability: Useful across many topic pages as high-level FFS context, especially when conditions are interacting, irregular, escalation-level, or not well served by one simple method family.
Limitations: It is not a pipeline-specific integrity management procedure and should not be treated as a direct replacement for pipeline regulations, company procedures, or topic-specific methods.
Notes: Best used as a high-level assessment and documentation reference rather than a shortcut answer for any one pipeline defect type.
Related topics: general metal loss interacting metal loss dent with metal loss hard spot review laminations inclusions crack like feature pipe buckling local buckle data quality ili review

CER Damage Prevention Regulatory and Guidance Context

CER / Government of Canada

Short summary: Canadian regulatory and official-guidance context for excavation damage prevention, activities near pipelines, and operator damage-prevention program obligations.
Applicability: Most useful for third-party damage, external mechanical damage, bullet-strike, equipment-impact, gouge, and right-of-way activity discussions.
Limitations: Provides program and official-guidance context only; field response and repair decisions still depend on the actual condition, operator procedures, and applicable law.
Notes: Useful when the practical question is not only what the damage is, but also how Canadian damage-prevention obligations frame the event.
Related topics: external damage bullet strikes equipment impacts gouge dent with gouge mechanical damage dent

CSA Z662 Oil and Gas Pipeline Systems

CSA Group

Short summary: Canadian consensus standard referenced by the CER framework for pipeline design, construction, operation, maintenance, integrity, and defect-related requirements.
Applicability: Useful when Canadian workflows need awareness that technical limits, repair acceptance, and many procedural expectations are commonly tied back to CSA Z662.
Limitations: The standard is copyrighted and is not reproduced here. Users should consult the applicable official edition and company procedures.
Notes: Best used as metadata and workflow context rather than quoted content.
Related topics: general metal loss dent dent with metal loss girth weld corrosion seam weld concern external damage bullet strikes equipment impacts

Canadian Energy Regulator Onshore Pipeline Regulations

Government of Canada / CER

Short summary: Federal Canadian regulatory framework for pipelines under CER jurisdiction, including management-system, integrity-management, monitoring, defect, and damage-prevention program requirements.
Applicability: Useful as high-level Canadian regulatory context across corrosion, crack, weld, dent, mechanical-damage, geotechnical, and documentation workflows.
Limitations: This is framework context only and should be read with the applicable jurisdiction, operator procedures, and the relevant edition of CSA Z662.
Notes: Use this to anchor Canadian program and process awareness rather than as a stand-alone defect-specific rule table.
Related topics: general metal loss internal corrosion review dent dent with metal loss external damage bullet strikes equipment impacts geotechnical movement data quality ili review

Welding and Manufacturing

2 references

PHMSA Hard Spot and Material Property Variation Advisory Context

PHMSA

Short summary: Regulatory and advisory context on hard spots, localized hardness variation, and why these manufacturing-related conditions may need special handling when cracking or susceptibility is credible.
Applicability: Useful for hard spot review, manufacturing-defect screening, susceptibility discussions, and when operators need high-level regulatory awareness around hard-spot-related risk.
Limitations: Advisory and oversight context only. It does not replace metallurgical evaluation, operator procedures, or defect-specific engineering.
Notes: Helpful for understanding why hard spots are treated as manufacturing-related threats rather than routine corrosion or generic cracking alone.
Related topics: hard spot review seam weld concern unknown unclassified feature

PHMSA Material, Manufacturing, and Weld Failure Advisory Context

PHMSA

Short summary: High-level regulatory and safety context for material defects, manufacturing-related threats, and weld-related failures that warrant disciplined review and documentation.
Applicability: Useful for seam weld anomalies, girth weld anomalies, laminations, inclusions, hard spots, and other manufacturing- or fabrication-related defect workflows.
Limitations: Advisory context only and not a substitute for operator procedures, construction records, or specialist assessment.
Notes: Useful when an engineer needs to frame the condition as a manufacturing or fabrication threat rather than a generic anomaly label.
Related topics: hard spot review laminations inclusions seam weld concern girth weld concern

Additional Learning Resources

2 references

Geohazard and Land Movement Guidance Resources

PHMSA / Industry Guidance

Short summary: General geohazard context for land movement, right-of-way monitoring, and ground-driven pipeline loading concerns.
Applicability: Useful for geotechnical movement, strain concern, wrinkle bends, and cases where terrain context may control next actions.
Limitations: This is broad guidance context and should be paired with local geohazard procedures and monitoring programs.
Notes: Helpful when engineers need to widen the review from a single anomaly to a segment or right-of-way issue.
Related topics: geotechnical movement strain concern wrinkle bend circumferential corrosion

Pipeline Research Council International (PRCI) Research

PRCI

Short summary: Industry research support covering dent interaction, crack threats, geohazards, inspection capability, validation limits, and best-practice development.
Applicability: Useful when a topic needs research-backed context or when the engineer needs to understand where industry understanding remains uncertainty-sensitive.
Limitations: Research context does not replace approved company procedures, validated software, or enforceable regulatory requirements.
Notes: Best used as supporting context for complex or specialist-level topics.
Related topics: dent with metal loss crack like feature strain concern geotechnical movement