Offshore Engineering Services
Design and analysis of jackets, topsides, FPSOs and subsea structures for the offshore energy industry.
Offshore Engineering — engineered for industrial performance.
Offshore engineering services cover fixed and floating structures — jackets, topsides, FPSOs, semi-submersibles and subsea modules. Using SACS, SESAM, OrcaFlex and USFOS, we deliver in-place, fatigue, pushover and installation analyses along with fabrication drawings and class-compliance documentation for oil & gas and offshore wind clients.
Our engineers combine first-principles calculation with modern 3D CAD and simulation to deliver work that plugs directly into your fabrication, procurement and construction workflows. Whether you need a short burst of expert capacity or a long-running dedicated engineering pod, our offshore engineering team is built to scale with your program.
- In-place & installation analysis
- Fatigue life assessment
- Weight control
- Class compliance
What our offshore engineering team delivers.
Jacket Design
Topside Design
In-Place Analysis
Fatigue Assessment
Installation Analysis
Weight Control
Class Deliverables
How we deliver, step by step.
Requirement Analysis
Capture inputs, goals, constraints and success criteria.
Concept Development
Design options with trade-off studies and feasibility.
CAD Modeling
Detailed 3D CAD, drawings and BOM per project standards.
Engineering Review
Two-tier internal review with checker sign-off.
Simulation & Validation
FEA, CFD or physical testing to prove the design.
Manufacturing Support
Vendor queries, fabrication and installation support.
Final Documentation
As-built package, calculation reports and archive.
Tools we use for this service.
SACS
Offshore structural analysis for jackets, topsides and jack-ups.
SESAM
Offshore & marine hydrodynamic and structural analysis suite.
OrcaFlex
Dynamic analysis of mooring, risers and offshore installation.
USFOS
Non-linear pushover and progressive collapse analysis for offshore.
Codes and standards we follow.
API
American Petroleum Institute — API 650/620 tanks, API 6A wellhead, API 610 pumps.
DNV
Det Norske Veritas — offshore, marine and floating structures.
ABS
American Bureau of Shipping — classification for marine and offshore.
ISO
ISO 9001 quality, ISO 3834 welding, ISO 10628 P&ID conventions.
Where we apply this service.
Everything you get.
Each offshore engineering engagement concludes with a documented, revision-controlled deliverable package ready for procurement, fabrication and construction teams.
- 3D Structural Model
- In-Place Analysis Report
- Fatigue Report
- Fabrication Drawings
- Weight Report
- Installation Analysis
- Class Deliverables
Selected projects.
Offshore Platform Modernization
Legacy 2D drawings, missing as-built data and evolving DNV standards were blocking a critical life-extension study.
Offshore Wind Monopile
Water depth, soil variability and fatigue-critical design required advanced non-linear analysis.
LNG Terminal Piping Stress
Cryogenic service, seismic zone and tight schedule required a specialized stress engineering pod.
Offshore Engineering — frequently asked questions.
Need expert engineering support?
Talk to a senior offshore engineering engineer at Perpetual TechSolutions. We respond within one business day with a scoped approach and indicative timeline.