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Asset Integrity Management

Predictive Maintenance and Remaining Life Assessment

We deliver connected condition monitoring, machine learning driven anomaly detection and remaining useful life prognostics for rotating and fixed equipment

Technical overview

Predictive Maintenance and Remaining
Life Assessment

Predictive maintenance has moved from offline spectrum analysis on quarterly routes into continuous, machine learning driven anomaly detection on connected assets, what the ARC Advisory Group calls the fourth generation of predictive maintenance. Our team integrates vibration analysis to ISO 10816, ISO 7919 and API RP 670 machinery protection, oil condition monitoring to ASTM D7720 covering wear metal trends, ferrography, viscosity and total acid number, infrared thermography to ASTM E1934, ultrasonics for valve and steam trap leakage, motor current signature analysis for electrically driven equipment, and acoustic emission for pressure vessel and storage tank monitoring. We layer this with cloud and edge analytics platforms such as GE and Aveva APM, AspenTech Mtell, Siemens MindSphere, AWS IoT, Microsoft Azure IoT and OSIsoft PI Asset Framework, and increasingly with model assisted root cause synthesis. Remaining useful life prediction has become tractable through Bayesian degradation models, hidden Markov methods and recurrent neural networks trained on years of historical failure data, though the discipline remains highly asset specific and demands physics of failure understanding alongside data science.

Predictive Maintenance and Remaining Life Assessment Overview
Engineering process

Predictive Maintenance and Remaining Life Assessment workflow

Asset Criticality & PdM Candidate Screen

Screen assets for PdM candidacy per ISO 17359, failure mode amenability to early detection signal, consequence severity, current maintenance cost, prioritise rotating equipment (pumps, compressors, turbines, motors) and static (heat exchangers, vessels).

CBM Sensor & Monitoring Specification

Specify condition monitoring sensors, vibration (ISO 10816, API 670), oil analysis (ferrography, spectroscopy), thermography (IR camera), acoustic emission, motor current signature analysis, align with ISO 13374 condition monitoring framework.

Data Acquisition & Edge Processing

Design data acquisition architecture, wired (4 to 20 mA, fieldbus) vs wireless (ISA100, WirelessHART), specify edge processing for FFT, envelope detection, peak hold, align with OT/IT architecture and IEC 62443 cybersecurity.

RUL Algorithm & Prognostic Model

Develop Remaining Useful Life algorithm, physics based (degradation model), data driven (regression, ANN, LSTM), hybrid, train on historical failure data, validate with cross validation, specify confidence interval and prognostic horizon.

CBM to CMMS Integration & Workflow

Integrate CBM alerts with CMMS (SAP PM, Maximo, IBM Maximo APM) for automatic work order generation, specify operator / planner / reliability engineer workflow, align with RCM task hierarchy and PdM task replacement of PM task.

PdM Programme Governance & ROI

Establish PdM programme charter with KPIs, fault detection lead time, false positive rate, planned vs reactive ratio, cost savings, conduct annual programme review with maintenance leadership, align with ISO 55000 asset management.

Predictive Maintenance and Remaining Life Assessment Scope
Scope of work

Every deliverable from basis to handover

Complete Predictive Maintenance and Remaining Life Assessment scope covering every calculation, drawing, specification, and construction support activity.

We rank asset criticality by impact and likelihood to drive the coverage decision
We perform vibration analysis to ISO 10816 covering overall root mean square, envelope, spectra and time waveform
We apply API RP 670 machinery protection on turbomachinery using proximity probes and casing accelerometers
We carry out oil analysis to ASTM D7720 covering wear metals, particle count, viscosity, acid and base number and ferrography
We use infrared thermography to ASTM E1934 on switchgear, insulation, refractory and steam systems
We apply motor current signature analysis to find broken rotor bars, bearing defects and eccentricity
We use acoustic emission for slow growth crack detection on pressure vessels and storage tanks
We apply machine learning anomaly detection such as isolation forest, autoencoder and long short term memory with operational context filtering
We build remaining useful life prognostics using Bayesian degradation, hidden Markov, particle filter and recurrent neural network approaches
We integrate the predictive maintenance platform, whether Aveva APM, AspenTech Mtell, GE iOps or OSIsoft PI
Engineering outcomes

Outcomes of Predictive Maintenance and Remaining Life Assessment

Remaining Useful Life Accuracy
  • We detect early stage failure on safety critical rotating and fixed equipment
  • We reduce unplanned outage exposure on high consequence assets
  • We anchor reliability centered maintenance task selection in condition based evidence
  • We surface silent failure patterns on standby and emergency equipment
ISO 13374 and API 691 PdM Defence
  • We align with the ISO 13374, 17359 and 13381 data and prognostics standards
  • We support API RP 670 machinery protection compliance
  • We document an ISO 55000 condition based maintenance approach
  • We provide insurer grade evidence of ageing asset condition
Condition Based Monitoring Optimisation
  • We typically reduce unplanned downtime on covered assets by thirty to fifty per cent
  • We sharpen spare parts planning with procurement driven by remaining useful life
  • We reduce over maintenance by shifting scheduled overhauls to a condition based regime
  • We build a data driven maintenance culture across operations and reliability
Planned versus Reactive Maintenance Savings
  • We cut maintenance and spare parts cost by fifteen to twenty five per cent in mature programmes
  • We defer major capital through documented life extension
  • We improve overall equipment effectiveness, typically by two to five percentage points on heavy rotating assets
  • We reduce business interruption insurance loadings
Standards & references

Codes & standards we work to

ISO 13374 (data processing)ISO 17359 (general guidelines)ISO 10816 / 7919 (vibration)API RP 670 (machinery protection)ASTM D7720 (oil analysis)ASTM E1934 (IR thermography)ISO 55000 (asset management)ISO 13381 (prognostics)NEMA MG 1 (motor monitoring)OISD STD 130 (In Service Inspection)PNGRB Pipeline Integrity Regulations 2009 (India)IBR 1950 (Indian Boiler Regulations)SMPV(U) Rules 2016 (India)API 691API 653 (Tank Inspection)API RP 580 / 581 (RBI)
When to engage

Triggers that signal the need

The launch of a predictive maintenance transformation programmeAn asset failure investigation showing a detectable signatureA digital transformation or Industry 4.0 initiativeA critical asset criticality reviewInsurance underwriting on an ageing asset portfolioMajor capital programme planningA spares inventory reduction programme
Industries served

Where Predictive Maintenance and Remaining Life Assessment applies

Oil & Gas, Upstream

Wellheads, separators, gas compression, FPSO topsides, produced water systems.

UpstreamOffshoreFPSO
Refineries & Petrochemicals

Distillation columns, reactors, heat exchangers, storage spheres, LPG handling.

RefiningPetrochemical
LNG & Gas Processing

Cryogenic exchangers, liquefaction trains, BOG compressors, storage and sendout.

LNGCryogenic
Specialty Chemicals

Reactive systems, batch reactors, solvent handling, runaway reaction scenarios.

ReactiveBatch
Power Generation

Boilers, HRSGs, steam headers, hydrogen systems, ammonia SCR units.

PowerHydrogen
Pharma & Food

Sterile vessels, CIP/SIP, pressure fermenters, solvent recovery, spray dryers.

PharmaFood & Bev
What we deliver

Tangible deliverables

  • Asset criticality and coverage decision matrix
  • Condition monitoring technology selection and instrumentation specification
  • Data architecture and platform integration design
  • Anomaly detection model specification
  • Remaining useful life prognostic model where data permits
  • Anomaly alert and work order workflow
  • Maintenance and asset management system integration plan
  • Predictive maintenance KPI and return on investment dashboard
Get Started

Ready to start your project?

Speak with our team to scope an engagement tailored to your facility, regulatory context, and lifecycle stage.