Maritime Engineering
Offshore and Marine
Specialized offshore platform engineering, subsea systems design, marine logistics, and asset integrity management for deepwater and harsh-environment operations.
Overview
Delivering Excellence in Offshore & Marine
- Concept selection and feasibility studies for fixed, floating, and subsea production systems
- Detailed structural, piping, and topsides engineering for offshore platforms
- Subsea pipeline and riser design, installation engineering, and integrity assessment
- Marine logistics, vessel spreads, and offshore construction support
- Life-of-field asset integrity management and decommissioning planning
What We Deliver
Key Services
Comprehensive solutions tailored to the unique demands of the offshore & marine sector.
Offshore Platform Design
Concept, FEED, and detailed design for jackets, topsides, FPSOs, semi-submersibles, and SPAR platforms — optimized for specific metocean conditions, reservoir characteristics, and regulatory frameworks.
Subsea Engineering
Subsea production system design, flowline and riser engineering, seabed layout optimization, and subsea tieback studies for marginal field development and deepwater applications.
Marine Operations & Logistics
Vessel selection, marine spread design, heavy-lift planning, and offshore construction sequencing for installation campaigns, hook-up, and commissioning.
Asset Integrity Management
Risk-based inspection planning, structural health monitoring, corrosion management, and remaining life assessment for offshore structures and subsea infrastructure.
Offshore Wind & Renewables
Foundation design, cable route engineering, and installation planning for offshore wind farms, leveraging transferable expertise from oil and gas offshore engineering.
Decommissioning & Removal
Decommissioning planning, well plugging and abandonment, structure removal engineering, and environmental site clearance in compliance with OSPAR and local regulatory requirements.
Technology
Technologies & Innovation
Leveraging advanced technologies to deliver measurable performance improvements.
Computational Fluid Dynamics
Advanced CFD modeling for wave-structure interaction, marine spread analysis, and subsea flow assurance.
Structural Finite Element Analysis
Non-linear FEA for fatigue assessment, seismic analysis, and extreme load evaluation of offshore structures.
ROV & AUV Inspection Systems
Remotely operated and autonomous underwater vehicle platforms for subsea inspection, survey, and intervention.
Digital Twin for Offshore Assets
Real-time structural monitoring and predictive maintenance platforms for offshore platforms and subsea systems.
Sectors
Industries Served
Impact
Proven Benefits
Reduced Offshore CAPEX
Optimized concept selection and detailed engineering have delivered 10–20% CAPEX reductions on major offshore projects through weight optimization and constructability improvements.
Extended Asset Life
Proactive integrity management programs extend the productive life of aging offshore assets by 10–15 years while maintaining safety and regulatory compliance.
Operational Safety Excellence
Zero lost-time incidents across all offshore projects, underpinned by rigorous HSE management systems and a culture of safety leadership.
Faster Project Execution
Integrated engineering and marine operations planning reduces installation campaign durations and accelerates time to first production.
Why Gastec
Why Choose Gastec Group
A trusted partner delivering integrated solutions with proven expertise and measurable results.
- Multidisciplinary offshore engineering team with deepwater and harsh-environment experience
- Proven track record on major EPCI projects across Africa, Asia, and the Americas
- Integrated capability from subsurface through topsides to marine operations
- Strong safety culture with industry-leading HSE performance metrics
- Technology partnerships with leading offshore equipment and service providers
Let's Build the Future of Energy
Partner with Gastec Group to unlock integrated solutions across energy, resources, and artificial intelligence.