Discipline 02

Offshore Structural Engineering

Structural engineering for fixed and floating offshore assets — from greenfield FEED through brownfield requalification and decommissioning. Assets include fixed jackets, wellhead platforms, topside decks, process modules, conductor frames, monotowers, compliant towers, and subsea structures (manifolds, templates, foundations). 39 ONGC jacket structures surveyed and assessed; active on life extension, T&I engineering, and integrity management.

Capabilities

Platform & Topside Design

FEED & detailed jacket design (SACS)
Topside deck & module structural design
Pile & foundation design — axial, lateral, soil-structure interaction
Secondary steel & appurtenances — boat landings, J-tubes, walkways
Flare booms, vent towers & helidecks — CAP 437 / NORSOK C-004

Global & Local Structural Analysis

In-place analysis (ULS) — wave, wind & current
Fatigue analysis (FLS) — deterministic & spectral, DNV-RP-C203
Seismic analysis — response spectrum & time-history, API RP 2EQ
Pushover & collapse (ALS) — RSR
Local FEA, joint & buckling checks — Abaqus / ANSYS
Lifting, loadout & transportation — offshore lift DAF, padeye / rigging, sea-fastening (SACS / MOSES)

Requalification, Integrity & Life Extension

Structural requalification — API RP 2A Sec.17 / ISO 19902 Annex A
Fatigue re-assessment — updated SCFs, inspection data, remaining life
Platform modification — conductor additions, deck extensions, load increases
Structural integrity management (SIM) & risk-based inspection (RBI)
Decommissioning engineering

Platform & Topside Design

FEED & detailed jacket design (SACS)
Topside deck & module structural design
Pile & foundation design — axial, lateral, soil-structure interaction
Secondary steel & appurtenances — boat landings, J-tubes, walkways
Flare booms, vent towers & helidecks — CAP 437 / NORSOK C-004

Global & Local Structural Analysis

In-place analysis (ULS) — wave, wind & current
Fatigue analysis (FLS) — deterministic & spectral, DNV-RP-C203
Seismic analysis — response spectrum & time-history, API RP 2EQ
Pushover & collapse (ALS) — RSR
Local FEA, joint & buckling checks — Abaqus / ANSYS
Lifting, loadout & transportation — offshore lift DAF, padeye / rigging, sea-fastening (SACS / MOSES)

Requalification, Integrity & Life Extension

Structural requalification — API RP 2A Sec.17 / ISO 19902 Annex A
Fatigue re-assessment — updated SCFs, inspection data, remaining life
Platform modification — conductor additions, deck extensions, load increases
Structural integrity management (SIM) & risk-based inspection (RBI)
Decommissioning engineering

Assets we engineer

Fixed jackets & wellhead platformsProcess & utility platformsTopside decks & process modulesConductor frames, monotowers & compliant towersSubsea structures — manifolds, templates & foundationsBrownfield & decommissioned assets

Active software