PARTNERSHIPS UNDERPIN FOCUSSED AIMS
Helping offshore operators maintain assets in good condition and at full production is a key role for classification societies. That is why Bureau Veritas has invested heavily in strategic partnerships to extend and focus its Asset Integrity Management Services (AIMS). The most recent is a partnership with France’s Dassault Systèmes, under which Bureau Veritas is integrating Dassault’s 3D EXPERIENCE platform and its Catia and Enovia 3D CAD tools with Bureau Veritas’ existing VeriSTAR calculation tools and AIM systems.
Dassault Systèmes is a world leader in 3D modelling and CAD solutions, with a massive presence in aerospace.
The new partnership is part of a digital transformation project with Bureau Veritas and builds on successful partnerships with APSYS, an aerospace specialist in Reliability Centred Maintenance services, with StuartWright, a specialist in Well Integrity Management and with HydrOcean, a specialist in Computerized Fluid Dynamics. HydrOcean has now been fully acquired by Bureau Veritas and forms part of the group’s core services.
Traditionally, classification societies act as recognized independent bodies for classification, certification or verification. A development of that is to provide technical assistance, especially in the area of risk management.
The expertise inherent in acting in an overseer and verifier role helps inform the requirements of a focussed approach to AIM. Bureau Veritas has developed services for Structure Integrity Management (SIM), Reliability Availability and Maintainability (RAM), Risk-Based Inspection (RBI) of static equipment and load bearing structures, Reliability Centred Maintenance (RCM), Safety Integrity Level (SIL), Noise & Vibrations assessments and Pipeline Integrity Management (PIM) and combines these into tailored AIMS packages.
The Dassault partnership and the digital transformation underway in Bureau Veritas take AIMS to a new level. Its new digital AIM system is built on a complete digital twin model of the actual asset and a virtuous virtual loop, which will keep it updated automatically so that it continuously reflects the actual condition of the asset and equipment.
On the input side the digital twin will interface automatically with connected surveyors, inspection and testing data, and in the future, live data from sensors on the equipment. On the output side the interface will be with operator’s Enterprise Resource Planning (ERP), with Bureau Veritas’ powerful structural calculation tools and with RBI planning tools. This will enable continual refinement and focusing of inspection effort.
3D EXTENDS STRUCTURE INTEGRITY MANAGEMENT
INPEX has awarded the Hull Inspection Management services contract for its ICHTHYS development to Bureau Veritas. The contract follows several major oil and gas companies in Australia, which have already trusted Bureau Veritas to provide Structural Integrity Management services.
Structure Integrity Management (SIM) is one of Bureau Veritas’ main strengths, built on its leading 3D diffraction/radiation hydrodynamics software, HydroSTAR, and its dedicated 3D Finite Element software VeriSTAR Hull and HOMER for design, condition strength and fatigue assessments. These software packages provided support to in-operation units through the VeriSTAR HLC (Hull Life Cycle) and VeriSTAR SIM packages.
Additional capabilities recently built in, based on 3D modelling and digital power, extend the VeriSTAR SIM modules to help with decision making concerning the go/no-go of life extension/redeployment of FPSOs and assessing potential conversions of gas carriers into FSRUs. This has been possible thanks to statistical analyses of existing ultrasonic thickness measurements (UTMs) and forecasts.
Also supported by the 3D model capability of VeriSTAR HLC is criticality ranking of hull structure findings in order to allow objective and cost-effective decision making on the corrective actions to carry out. VeriSTAR SIM already allowed 3D risk-based inspection planning of fixed platforms and topside structures, anticipating the now in-force API RP2SIM code. VeriSTAR HLC built on that with the preparation of intervention scopes and the subsequent presentation of findings and thickness measurements taken.
GUIDELINES FOR OFFSHORE ACCESS SYSTEMS
Bureau Veritas has developed guidelines for walk-to-work (W2W) Offshore Access Systems (OAS) which are used to transfer industrial personnel to and from offshore installations. Guidance Note NI629 Certification of Offshore Access Systems provides a clear and comprehensive overview of the safety principles and technical requirements for the design, manufacturing and operation of reliable and dependable equipment for the safe transfer of personnel at sea.
Getting people safely onto and off unmanned platforms and wind turbines offshore has become a big issue. Actively motion-compensated W2W OAS can provide significant safety, operability and/or cost advantages over more traditional personnel transfer methods such as personnel basket or capsule lifts, step-over from high speed crew transfer vessels and helicopter transfers. A new generation of innovative offshore service vessels equipped with motion-compensated gangways is emerging and it is imperative that the industry has a standard against which to assess their safety and to support the development of new designs.
MATTHEWSDANIEL’S RIG HISTORY DATABASE
Bureau Veritas subsidiary MatthewsDaniel has developed a new program to enhance mobile offshore drilling units (MODU) safety based on analysing past rig performance in specific locations. The Rig History Database (RHD) is a web-based database, that organizes information that includes historical worldwide spudcan penetration records. To date, RHD has a collection of more than 11,000 records. This information will provide accurate predictions for expected performance when siting on location to increase MODU safety.
Each historical penetration record includes MODU details, location description, coordinates, leg penetrations and loads. The program can perform a search in and around a geodetic coordinate and plot the records within the search radius using Google Maps© for an interactive spatial view of the records around a search point.
For the past 40 years, MatthewsDaniel has provided warranty approvals for siting MODUs on location. In the last 5 years alone, MatthewsDaniel has issued approvals for more than 2,000 locations for jack-ups, mat-supported units and semi-submersibles.
Once RHD has located available records within a designated geographical site, MatDan’s in-house geotechnical team can use this information to better evaluate soil conditions for MODU siting. Based on rig type, load, and historical penetrations, geotechnical engineers can hindcast MODU foundation performance data to reduce the uncertainty in soil laboratory test data to more accurately interpret soil parameters. The refined soil parameters can be used to provide improved penetration predictions.