Vision
To be the reference point for true local content development in the Nigerian oil and gas industry.
Plot 4, Block 16c Abisogun Street, Off Palace Road, Oniru Estate, Victoria Island, Lagos
+234 (909) 611-0000info@cnsmarine-nigeria.com
Offshore Energy · Subsea · Marine
Serving your offshore needs.
A privately owned indigenous company serving the upstream Nigerian oil and gas industry, delivering construction, inspection, repair and maintenance with air diving, saturation diving and ROV capability.
- Project Management
- Engineering
- Inspection, Repair & Maintenance
- Construction & Subsea
- Diving & ROV
- Vessel Provisioning
- Decommissioning
- Integrity Solutions
Our origin
Quality offshore services at a competitive price
CNS Marine was incorporated under the laws of the Federal Republic of Nigeria on 8 July 2011 and is a majority Nigerian-owned company. A personalised approach to contracting gives clients a rapid response and quality service at a lower cost.
We are a multi-disciplinary company with a global standard in perspective. Our services are carried out to international standards and specifications, with safety, care for our people and environmental responsibility at the centre of our strategy.
- 2011
- Incorporated in Nigeria
- 8
- Integrated service lines
- Air & Sat
- Diving systems and ROVs
Mission
To become a major player and reference point in the provision of quality offshore and onshore services in the oil and gas industry.
Values
The health, welfare and safety of our people, contractors and the public. Our people are our most important asset, and we will not compromise safety to achieve other goals.
Principles
Meet or exceed regulatory compliance, prevent injury and damage, follow industry codes and practices, and maintain high HSE performance.
What we do
Offshore and subsea services, end to end
From early studies to decommissioning, one accountable team for platforms, pipelines, FPSOs and the vessels that support them.
01
Project Management
Experienced project managers, supervisors, engineers, coordinators, estimators, controls engineers and technicians, working closely with client teams from kick-off to close-out.
02
Engineering
Offshore and onshore engineering and integrity work: feasibility, preliminary and conceptual studies, front-end engineering design (FEED) and detailed engineering design.
03
Inspection, Repair & Maintenance
Topside inspection and advanced NDT: digital radiography, ultrasonic thickness gauging and scanning, magnetic particle, dye penetrant, holiday detection, boroscopy, crawler RT, coating inspection, blasting and painting.
04
Construction & Subsea Solutions
Subsea inspection and engineering: CP/CD surveys, platform and pipeline inspection, FPSO hull and turret inspection, flooded member detection, anchor chain inspection, leak remediation and subsea component change-out.
05
Diving (Air & Saturation) & ROV
Air and saturation diving systems, work-class and observation ROVs, underwater video surveys, pipeline repair and freespan correction, SPM and PLEM maintenance, salvage and recovery.
06
Vessel Provisioning
Diving support, offshore support and field installation vessels, pipe-lay barges and well intervention vessels for offshore campaigns.
07
Decommissioning & Plug and Abandonment
Safe, cost-effective end-of-life solutions for wells, platforms, pipelines and onshore facilities, from early planning to final site clearance. Our engineering, diving, ROV, vessel and integrity teams work as one, with every campaign planned in line with NUPRC decommissioning and abandonment requirements.
Plug & Abandonment (P&A)
- Well integrity assessment, logging and P&A programme design
- Temporary suspension and permanent abandonment of onshore, platform and subsea wells
- Well entry, wellbore clean-out, fishing and milling
- Cement plug and barrier placement, including perforate, wash and cement, with pressure testing and verification
- Casing cut and pull, wellhead and conductor removal
- Rigless P&A from well intervention vessels, with diver and ROV support
Offshore decommissioning
- Decommissioning studies, cost estimates and decommissioning plan support
- Make-safe preparation: hydrocarbon draining, flushing, cleaning and isolation
- Hazardous material surveys, including NORM, asbestos and chemical residues
- Topsides and jacket removal support, with diver and ROV cutting and severance
- Pipeline, flowline and riser pigging, flushing, sealing, and leave-in-place or recovery
- Subsea structure, SPM and PLEM removal, debris clearance and seabed verification surveys
Onshore decommissioning
- Flow station, manifold, tank and process plant decontamination and dismantling
- Flowline and pipeline flushing, cleaning, isolation and removal
- Wellhead area clean-up and restoration after abandonment
- NORM and hazardous waste handling, segregation and licensed disposal
- Scrap recovery and recycling of steel and equipment
- Site remediation, close-out inspection and documentation for regulatory sign-off
08
Onshore & Offshore Integrity Solutions
Integrity inspection and equipment/spares management that keep onshore and offshore assets safe, certified and ready for service.
Integrity Inspection Services
- Digital radiographic testing – X-ray and gamma ray (Iridium 192 and Cobalt 60)
- Liquid / dye penetrant inspection
- Ultrasonic thickness gauging
- Magnetic particle inspection
- Ultrasonic scanning
- Visual inspection
- Holiday detection
- Borescope inspection
- Crawler RT
Equipment / Spares Management
We operate a robust equipment and spares management service. Our equipment/spares storage facility keeps equipment and spares in operational condition, ready for their designed use.
Clients who use our storage facility also benefit from lower costs – a clear part of our competitive advantage.
Subsea & diving
Air, saturation and ROV capability below the waterline
Our mission is to satisfy our clients' needs and reach recognised leadership in industrial diving services.
| Class | Power |
|---|---|
| Heavy work class | 150–200 hp |
| Medium work class | 75–120 hp |
| Observation class | Light inspection and survey |
- Subsea construction, inspection & maintenance
- Offshore pipe-laying services and support
- Vessel UWILD surveys
- Riser and well interventions
- SPM & PLEM maintenance and installation
- Offshore QA programme advisory
Marine operations
The right vessel for every offshore campaign
CNS provides vessel provisioning for offshore activities, including:
- Diving support vessels
- Offshore support vessels
- Field installation vessels
- Pipe-lay barges
- Well intervention vessels
Track record
Key projects
| Client | Vessel / project | Scope |
|---|---|---|
| OIS / Mobil Producing Nigeria | MPSV Topaz Captain | Riser repairs and offshore accommodation |
| PMNL / Mobil | PSV Topaz Xara | Offshore supply vessel |
| Ashbard / Mobil | Caspian Breeze | Multiple-field Damen crew transfer boat |
| Ariosh / Mobil | Reliance Grace | Security vessel services |
| PPSL / Mobil Producing Nigeria | Siem Daya 1 | Multiple pipeline revamp, installation and commissioning |
| Total Producing Nigeria Ltd | Eltee 1 | Offshore security personnel vessel |
| Erin Energy Nigeria Ltd | MDPL Conqueror | FPSO crude offtake campaign |
| Erin Energy | Island Constructor | Well intervention services |
| Saipem / Total | Bar Protector | Multiple pipeline installation and commissioning |
Our clients
Health, safety & environment
Safety, care for our people and the environment drive everything we do
- Meet or exceed regulatory compliance
- Prevent injury to people and damage to equipment, material and the environment
- Meet industry codes, guidelines and practices
- Maintain high standards of environmental, health and safety performance
Request for quotation
Tell us about your next project
We work closely with clients to understand their objectives, constraints and budget, and welcome the opportunity to quote for your upcoming projects.
CORPORATE HEAD OFFICE
Plot 4, Block 16c Abisogun Street, Off Palace Road, Oniru Estate, Victoria Island, Lagos, Nigeria
PHONE