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Asset Integrity Management

Pipeline and Storage Tank Integrity Management

Integrity programmes to API 1160, API 653, and PHMSA, driven by in line inspection, direct assessment, and damage mechanism science

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Technical overview

Pipeline and Storage
Tank Integrity Management

Pipeline Integrity Management Programmes and Tank Integrity Management Programmes translate API 1160 for liquid pipelines, API 1163 for in line inspection qualification, API 570 for in service piping, API 653 for above ground storage tanks, and PHMSA 49 CFR Part 192 for gas and Part 195 for liquid into inspection, monitoring, repair, and re rating programmes specific to your assets. The PHMSA mega rule for Gas Transmission Pipeline Safety, with Phase 1 effective in July 2020, Phase 2 effective in May 2023, and Phase 3 in 2025, significantly expanded the requirements for High Consequence Areas, Moderate Consequence Areas, and assessment methods following the San Bruno event of 2010 with eight fatalities, the Marshall Michigan Enbridge dilbit spill of 2010, and the Aliso Canyon event of 2015. Our team combines in line inspection tool selection across MFL, UT, EMAT, calliper, and geometry tools that typically run on five to seven year intervals depending on the threat profile, direct assessment for unpiggable segments using ECDA for external corrosion, ICDA for internal corrosion, and SCCDA for stress corrosion cracking, API 653 out of service and in service tank inspection with bottom plate MFL and shell UT scanning, and increasingly fibre optic distributed sensing through DAS and DTS for leak and ground movement detection.

Pipeline and Storage Tank Integrity Management Overview
Engineering process

Pipeline and Storage Tank Integrity Management workflow

Pipeline Threat Assessment

Catalogue threats per ASME B31.8S / API 1160, external corrosion, internal corrosion, SCC, manufacturing defects, construction / fabrication, equipment, third party damage, incorrect operations, weather / outside force, build pipeline threat register.

ILI Programme Design

Design inline inspection programme, MFL (corrosion / pitting), UT (wall loss), EMAT (SCC), Caliper (geometry), IMU (strain), specify ILI tool capability (sizing accuracy, POD, POI), align with API 1163 ILI Systems Qualification.

Defect Assessment & MAOP Verification

Assess ILI detected defects per ASME B31G / ModifiedB31G / RSTRENG, calculate failure pressure and predicted burst, verify MAOP per Subpart H (PHMSA 49 CFR 192/195), integrate with hydrostatic test programme.

Cathodic Protection & Corrosion Programme

Design CP system per NACE SP 0169, sacrificial anode or impressed current, specify CP monitoring (CIPS, DCVG, ACVG), design internal corrosion programme, chemical inhibition, pigging, biocide treatment, align with NACE / API standards.

Pipeline ECDA & ICDA Programme

Design External Corrosion Direct Assessment (ECDA) per NACE SP 0502 with indirect inspection, direct examination, post assessment, design Internal Corrosion Direct Assessment (ICDA) per NACE SP 0206, align with high consequence area (HCA) coverage.

IMP Programme Documentation & Audit

Author Integrity Management Programme per ASME B31.8S / API 1160 / PHMSA 49 CFR 192/195 Subpart O, prepare for PHMSA inspection / FERC audit, maintain inspection records, calculation files, and MOC integration.

Pipeline and Storage Tank Integrity Management Scope
Scope of work

Every deliverable from basis to handover

Complete Pipeline and Storage Tank Integrity Management scope covering every calculation, drawing, specification, and construction support activity.

Threat identification to API 1160 covering external corrosion, internal corrosion, SCC, manufacturing defects, third party damage, and weather and outside force
Designation of High Consequence Areas, Moderate Consequence Areas, and Class Location to the PHMSA mega rule, which gates the assessment method
In line inspection tool selection across MFL for metal loss, UT wall thickness for precise wall thickness, EMAT for SCC, geometry for dents, and calliper for ovality
In line inspection qualification to API 1163 covering probability of detection, probability of identification, sizing tolerance, and run validation
Direct assessment using ECDA for external corrosion, ICDA for internal corrosion, and SCCDA for stress corrosion cracking on unpiggable lines
API 653 tank inspection covering bottom MFL, shell UT scanning, and inspection of fixed and floating roofs
Anomaly assessment to API 579 FFS Level 1, 2, and 3 with pressure reduction and repair prioritisation logic
Fibre optic distributed sensing through DAS and DTS for leak detection and ground movement monitoring
A cathodic protection programme to NACE SP0169 with an annual CP survey
An Integrity Management Plan with a re baseline trigger matrix and a five year re assessment cycle
Engineering outcomes

Outcomes of Pipeline and Storage Tank Integrity Management

Pipeline Failure and Leak Prevention
  • Lowers both release frequency and consequence
  • Identifies the high risk segments for inspection
  • Reinforces leak detection capability
  • Supports prioritisation driven by High Consequence Areas
ASME B31.8S, API 1160, and PHMSA Defence
  • Tracks to API 1160, 653, and 570
  • Documents compliance with PHMSA 49 CFR 195
  • Supports OISD STD 141 in India
  • Produces documentation that withstands regulator and AHJ scrutiny
ILI Programme and MAOP Assurance
  • Optimises inspection scope and frequency
  • Improves your response to anomalies
  • Tightens the corrosion control programmes
  • Supports right of way management
Dig and Repair Cost Targeting
  • Defers full replacement through targeted repair
  • Reduces release cleanup and litigation cost
  • Optimises inspection capex
  • Eases premium pressure on transmission risk
Standards & references

Codes & standards we work to

API RP 1160 (3rd Ed., 2019) liquid pipelinesAPI RP 1163 (2nd Ed., 2013) ILI qualificationAPI STD 653 (5th Ed., 2014) tank inspectionAPI RP 570 (4th Ed., 2016) pipingPHMSA 49 CFR 192 (gas) / 195 (liquid)PHMSA Mega Rule (2020 / 2023 / 2025)ASME B31.4 / B31.8 (pipeline design)NACE SP0169 / SP0204 / SP0102OISD STD 141 (India)OISD STD 130 (In Service Inspection)PNGRB Pipeline Integrity Regulations 2009 (India)IBR 1950 (Indian Boiler Regulations)SMPV(U) Rules 2016 (India)PNGRB (T4S) Regulations 2009
When to engage

Triggers that signal the need

The commissioning of a new pipeline or terminalAn in line inspection findingA post incident integrity reviewA High Consequence Area designationCapex programme planningA periodic revalidation of the Integrity Management Plan
Industries served

Where Pipeline and Storage Tank Integrity Management applies

Oil and Gas Pipelines

Liquid and gas transmission and gathering systems.

PipelineTransmission
Storage Terminals

Tank farms, terminal facilities, and jetties.

StorageTerminal
LNG and LPG

Cryogenic and refrigerated storage tanks.

LNGLPG
Refineries

In plant piping, tankage, and distribution.

Refining
Hydrogen Infrastructure

Hydrogen pipelines, storage, and distribution.

H2
Chemical Distribution

Chemical pipelines and storage facilities.

Chemical
What we deliver

Tangible deliverables

  • An Integrity Management Plan
  • A threat assessment with risk ranking
  • An in line inspection data review and anomaly register
  • An API 653 tank inspection report
  • A repair prioritisation matrix
  • An annual programme report
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