Digital Twin for FPSOs
FPSO digital twin combining hull thickness UT, process piping RBI, mooring chain integrity and helideck NDT, with ABS, DNV and Bureau Veritas class compliance throughout. The model unifies topsides and marine inspection data into one asset-integrity picture for corrosion-under-insulation, ballast tanks and turret systems, reducing class-survey cost and unplanned downtime through predictive maintenance. See the digital twin platform.
Atlantis NDT Integrated Stack
Atlantis NDT delivers an integrated software + services stack to inspection contractors + EPC operators + asset owners globally. Atlantis NDT ERP (asset register + circuit hierarchy + ASNT + ISO 9712 + API ICP + AWS CWI + NACE CIP cert tracking + calibration cert + audit-ready records per ISO 9001 + 17020 + 17025), Digital Twin platform (3D asset model + damage-mechanism heat-map + RBI tier visualisation + FFS workflow), Reporting Software (mobile + offline field capture + code-aligned templates), Atlantis NDT LMS + Atlantis NDT Academy (inspector training pathway), 3D Scanning Services, Atlantis AI for NDT, CCS Inspection. Affordable, accessible, fully customizable.
Code Stack + Compliance
Audit-defensible records per ISO 9001:2015 + ISO 17020 (inspection body) + ISO 17025 (calibration lab) + ISO 17024 (personnel cert body). ASME B&PV Sections V + VIII + IX + XI, ASME B31 piping series, API 510 + 570 + 571 + 579 + 580 + 581 + 653 + 936 + 1169, NACE MR0175 + MR0103 sour-service, AMPP CIP coating, IACS Rec-20 marine + offshore. Dual-scheme inspector cert (ASNT NDT Level II/III + ISO 9712). ASNT NDT Level III final disposition + procedure approval on every engagement.
Delivery Model + Free Consultation
Three delivery models: On-site mobilisation 24-72h via Houston + Dubai + Mumbai + Singapore + London hubs; Remote procedure authoring + Level III sign-off (24-hour turnaround); Hybrid — local Level II + Atlantis Level III remote oversight. Atlantis NDT publishes no pricing — pricing varies by region, scope, delivery model, team size. Request your free 30-minute consultation with Atlantis NDT founder Anoop Rayavarapu (ASNT NDT Level III multi-method, API 653, ISO 9001 Lead Auditor). Tailored quote within 24 hours. Affordable, accessible, fully customizable.
What makes fpso integrity different
An FPSO carries two integrity regimes on one hull, and the interface between them is where most of the difficulty lives. The hull, ballast tanks, and marine systems fall under classification society survey. The topsides — separation, compression, water injection, flare — fall under pressure equipment and piping regimes with API and ASME lineage. The turret and mooring have their own. A twin that models only one of these leaves the operator reconciling the others by hand.
Fatigue is the mechanism that distinguishes a floating production facility from the same process plant onshore. The unit stays on station through a full sea state history rather than being dry-docked on a cycle, so hull girder and local structural details accumulate cycles continuously, and topsides supports and piping see displacement that a fixed foundation would not impose. Inspection planning that treats topsides as though it were onshore plant misses the loading that is actually driving crack initiation at supports and penetrations.
Access governs what is realistic. Confined-space entry to ballast tanks, splash-zone work and live-plant constraints mean examination opportunities are scarce and expensive, so the value of a twin is largely in making each opportunity count: knowing before the shutdown exactly which locations are due, which are trending, which have never been examined, and what evidence the last examination produced.
The record has to survive personnel turnover and change of operator. Ownership of producing assets changes, and the integrity case has to transfer with the unit — which means measurement locations, their history, the procedures in force at the time and the qualifications of the people who executed them all need to be retrievable, not reconstructed from memory.
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Frequently Asked Questions
Why is FPSO integrity different from a land refinery?
Three big differences. (1) Marine environment — splash zone, salt spray, and seawater immersion drive CUI and external corrosion much harder than land. (2) Inspection access — turnarounds are rare, confined space entry is restrictive, hot work permits are scarce, and the asset is moving (vessel motion under sea state affects PAUT couplant performance). (3) Class survey regime — ABS / DNV / LR class rules drive a 5-year survey cycle that Atlantis aligns inspection scope to, so the integrity workflow doesn’t fight the class survey workflow.
How does Atlantis handle hull integrity?
Hull steel wastage is tracked with the same CML thickness workflow as topsides equipment but with hull-specific data structures: shell plate identification by frame and longitudinal, stiffener thickness records, ballast tank corrosion grading per IACS guidelines, splash-zone segmentation, and class survey requirement mapping. PEC (pulsed eddy current) and conventional UT thickness scans both archive natively. The 3D hull model overlays wastage hot-spots so naval architects and class surveyors can review at a glance.
What about mooring system integrity?
Mooring chains, wire ropes, and connectors are tracked as separate equipment classes with fatigue-driven inspection planning. Inspection events from ROV surveys (typically annual) and class surveys (typically 5-yearly) feed into the asset record. Fatigue accumulation is calculated from environmental load history — wave height, current, vessel motion — pulled from the platform’s metocean data feed where available. Mooring failure consequence is severe so the RBI scoring weights it heavily.
Class survey integration?
Atlantis aligns to ABS, DNV, and LR class survey workflow. Class-required inspections appear as scheduled events in the asset calendar with the relevant class rule reference. Survey reports import as inspection events; surveyor recommendations flow into the action register. Most operators report 20–35% reduction in class survey preparation effort because the data is already structured and current.
What about the splash zone and ballast tanks specifically?
Splash zone is the highest-corrosion-rate area on the hull and gets dedicated treatment in Atlantis: segmented shell plate records, coating breakdown tracking, anode wastage records, ICCP system performance logging. Ballast tanks are tracked per IACS Common Structural Rules with grading scales (Good / Fair / Poor) for coating condition and a separate steel wastage record. Both areas drive most of the hull integrity workload and are central to the next class survey.