ENGINEERING-LED NII

Non-intrusive inspection, engineered properly.

Reduce shutdowns, lower inspection cost, and make confident integrity decisions without vessel entry.

Up to 80% cost reduction compared to intrusive inspection.

Trusted by operators including Santos, Woodside, BHP, and Beach Energy.

Over a decade delivering asset integrity outcomes in complex operating environments.

$32M → $2M inspection cost reduction

Achieved on a single processing train using engineering-led, data-driven NII.

Fully compliant with AS/NZS 3788 and API standards.

Safety

No confined space entry

Eliminate personnel exposure and avoid disturbance to equipment and pressure boundaries.

Cost

Up to 80% lower inspection cost

Avoid shutdown-driven scope, reduce inspection cost, and protect production revenue.

Operations

No shutdown required

Reduce disruption, minimise turnaround scope, and keep production online where suitable.

Insight

Defensible, high-quality data

Quantifiable results for confident, auditable integrity decisions.

Engineering-led inspection.
Built on data.

Most inspection programs are over-scoped before work even begins.

Most inspection programs are built around compliance requirements and historical practices. Scope is defined first, then executed, regardless of whether it is optimal.

NAS works differently: using engineering analysis and data to define only the inspection that is required before execution begins.

From individual vessels to full facility optimisation.

The difference is not the inspection method. It is how the inspection is defined.

Finite element analysis stress plot of a vessel support bracket
Engineering analysis

Engineering analysis driving inspection decisions.

Conventional inspection approach

  • Vessel-by-vessel decisions
  • Fixed inspection scopes
  • Driven by compliance requirements
  • Limited use of data
  • Outputs are static reports

Engineering-led NAS approach

  • Optimised inspection at vessel and facility level
  • Engineering-led strategy selection
  • Data used to design, validate, and improve inspection
  • Integrated with RBI and integrity systems
  • Outputs are decisions, confidence, and cost reduction

NII is the tool. Engineering and data decide the outcome.

NIIPRO

Engineering-led inspection that delivers decisions

NIIPRO turns inspection into a controlled, end-to-end workflow, from scope definition to final decision.

CAPABILITY

Engineering-driven scope definition

Defined using engineering analysis, not templates.

Structured inspection execution

Controlled workpacks and consistent data capture.

Integrated data and evaluation

Spatially mapped data for coverage and damage assessment.

End-to-end traceability

Fully auditable from screening to close-out.

OUTCOMES

Defensible inspection decisions

Supports RBI and fitness-for-service.

Less reliance on shutdowns

Planned around live operations.

Consistent delivery across assets and sites

Repeatable and not person-dependent.

Scalable inspection programs

Expand without losing control or quality.

Full visibility of inspection coverage, condition, and data quality.

Without NIIPRO, data is fragmented.
With NIIPRO, it is structured, traceable, and ready for decision-making.

How we work with you

Start with NII where it delivers the most value

Start at the asset level for immediate value, or take a facility-wide approach to optimise inspection strategy across your plant.

Apply NII at the asset level for quick wins, or across the facility to optimise inspection strategy.

  • Asset-level NII

    Start with individual assets

    Identify high-value candidates and execute NII where it delivers immediate cost and shutdown reduction.

    View NII process

Full services breakdownAsset screening

Case studies

Proven inspection outcomesfrom operating assets

Assurance in every step | Confidence in every asset

Amine contactor exterior photograph
Amine contactor SC5 data visual
NIIIntegrityAssessmentUncertainty reduced

From Uncertainty to Defensible Integrity Decision

  • Removed uncertainty in vessel condition
  • Identified and assessed degradation
  • Enabled confident, evidence-based decisions
View case study
CO2 absorber vessel photograph
CO2 absorber inspection data visual - primary view
NIIIVI ReplacementOnlineShutdown avoided

Shutdown Avoided on Critical Process Vessel

  • Maintained full production during inspection
  • Eliminated vessel entry and shutdown scope
  • Delivered a high-confidence integrity decision
View case study
HP flare KO drum photograph
HP flare KO drum NII overview
NIIHigh-Risk SystemOnlineNo disruption

High-Risk Asset Inspected Without Disruption

  • Completed inspection with no operational impact
  • Reduced execution risk on a critical system
  • Delivered reliable integrity data
View case study

Why NAS delivers better inspection outcomes

Engineering-led from the start

Inspection scope is defined using engineering analysis, not default compliance assumptions.

Designed to reduce shutdown scope

Inspection is planned around production impact, not access requirements.

Executed on live assets

NII is delivered on operating equipment, not just defined on paper.

Built on traceable data

Decisions are supported by structured, auditable inspection data.

Up to 80% of vessels inspected without shutdown.

Inspection scope is engineered to minimise shutdown dependency while maintaining confidence in vessel condition.

NII is not a standalone test. It is part of an engineered workflow from screening through execution to evaluation.

Inspection outcomes are determined before execution begins.

Go deeper

Explore the rest of the system

Services, methodology, tooling, and evidence. Each page connects to qualification and contact when you are ready to scope work.

  • Services

    How NII, integrity engineering, field execution, and NIIPRO fit one structured workflow.

    View services
  • Understand NII

    What NII is, where it fits, and how it differs from routine external NDT.

    NII overview
  • NII process

    The full methodology: information through on-site execution, evaluation, and decision.

    How NII works
  • Inspection strategy

    Facility desktop study for cost-led inspection strategy site-wide, including NII, IVI, RVI, and hybrid scopes.

    Explore inspection strategy
  • NIIPRO

    Structured workflow and data for planning, field records, and close-out.

    Explore NIIPRO
  • Case studies

    Outcomes from structured inspection programs on real assets.

    View case studies