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Offshore PlatformRisersIndiaBrownfieldEngineering
Riser lifting feasibility — 30+ lifts assessed
ONGC · 2023 · India
Feasibility assessment of riser installation across multiple candidate vessels — structural analysis and lift methodology for 30+ lifts assessed.
30+ lifts assessed
Scope of work
Assessment of multiple vessels for riser installation feasibility
Structural analysis and lift methodology review
Feasibility verification for 30+ assessed lifts
Services demonstrated by this project
Lifting & Heavy-Lift EngineeringLift engineering for offshore and yard lifts: rigging design, lift-point and padeye checks, dynamic amplification, crane-vessel and barge stability during the lift, and the lift plan calculations reviewed by class or a marine warranty surveyorThird-Party Verification & Independent Design ReviewIndependent verification of offshore structural, naval architecture and pipeline engineering: design reviews, re-analysis with our own models, structural integrity assessments and owner’s-engineer review of contractor deliverablesTransportation & Installation (T&I) EngineeringTransportation and installation engineering for jackets, topsides, modules, risers and conductors: load-out, transportation, launch or lift, upending, set-down and hook-up analysed as one sequence, with the method statements and calculation notes the marine warranty surveyor reviewsRiser & Conductor Installation EngineeringInstallation engineering for risers and conductors on fixed platforms: clamp and guide design, lift and running procedures, vessel interface, fatigue during installation and the MWS-ready calculation packageLife Extension & Structural Integrity AssessmentStructural integrity management and life-extension assessment for fixed platforms past their design life: survey data interpretation, corrosion and damage modelling, in-place, fatigue and pushover analysis for reserve strength, and a requalification statement to API RP 2A Section 17 / ISO 19902 Annex ADecommissioning Engineering for Offshore PlatformsEngineering for the removal of ageing offshore platforms and pipelines: structural assessment of the as-is condition for cutting and lifting, reverse-installation and lift engineering, sea-fastening for the return transport, pipeline decommissioning options and the comparative assessment behind the decommissioning plan
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