Underwater Fabrication Welding
Certified wet and hyperbaric welding that restores structural integrity on live subsea assets with minimal downtime.
EnquireCJ Drilling Company delivers subsea welding, inspection, and emergency response for the world's most demanding offshore environments — safely, precisely, and on schedule.
For over two decades, CJ Drilling Company has specialised in high-performance offshore drilling and underwater welding solutions for challenging marine environments. We serve clients across the oil & gas, maritime, and offshore construction sectors.
Led by seasoned engineers, certified divers, and subsea specialists, we combine deep industry experience with modern technology to ensure every project meets international standards — on time and within scope.
To deliver safe, precise subsea engineering that protects people, assets, and the marine environment.
To be West Africa's most trusted partner for offshore and subsea integrity, wherever reliability matters most.
Safety first, engineering integrity, and accountability on every dive and every deployment.
From live-asset repairs to emergency intervention, every service is delivered by certified teams under strict safety protocols.
Certified wet and hyperbaric welding that restores structural integrity on live subsea assets with minimal downtime.
EnquireDurable repairs to platforms, risers, and pipelines that prevent catastrophic failures before they start.
EnquirePrecision fabrication and installation of subsea components engineered for long-term reliability.
EnquireNon-destructive testing and diver-led inspection that catches issues early, supporting compliance and asset life.
EnquireCorrosion management that extends asset life and safeguards surrounding marine ecosystems.
EnquireRapid, controlled intervention to stabilise high-risk offshore situations and protect personnel.
EnquireClients return to CJ Drilling because we combine certified capability with the responsiveness offshore work demands.
ISO 9001, ISO 45001 and IMCA-aligned procedures across every operation.
Seasoned divers and subsea engineers with thousands of logged offshore hours.
Mobilisation-ready teams and equipment for time-critical interventions.
ROV support, saturation systems and NDT tooling maintained to survey standard.
Hundreds of completed projects delivered on time and within scope.
Everyone home safe — the standard we measure every job against.
Subsea integrity and repair for upstream production infrastructure.
Fabrication and install support for harbours, jetties and platforms.
Maintenance and inspection for offshore platforms and rigs.
Regulatory-grade survey, salvage and coastal infrastructure work.
In-water hull inspection, cleaning and emergency vessel repair.
Foundation inspection and support for offshore wind assets.
Offshore work carries real risk, so safety is never a checkbox for us — it is the operating system for every dive, weld and deployment. Our protocols are built to protect our people, our clients' assets, and the marine environment.
Standardised procedures and permit-to-work systems govern every task, without exception.
IMCA-aligned diving with redundant life-support and independent supervision.
Live monitoring and toolbox talks keep hazards visible and controlled throughout the job.
Decades of combined offshore and engineering experience guiding every project.
Tell us about your project and our engineers will scope a safe, reliable approach — from inspection to full subsea intervention.