Offshore oil and gas platform
decommissioning
SUBMAR, your premier partner for offshore decommissioning solutions in the North Sea and Worldwide. Specializing in oil and gas platforms, utilizing self-developed world-leading ultra-high-pressure abrasive waterjet cutting techniques, with pressures of up to 4000 bar, to ensure efficient and precise dismantling.
Patented Abrasive Waterjet Cutting for Multistring Conductors
It’s official – our Multistring Conductor Cutting Head is patented!And we couldn’t be prouder. This achievement is the result of more than eight years of research, development, and rigorous testing. The outcome: a cutting head capable of slicing through the most...
AFTERMOVIE – offshore spring 2025
From seabed to success 🌊💪 With cutting-edge technology and true teamwork, we completed a challenging offshore decommissioning project – removing platform legs and a well deep below the seabed. Proud to share the aftermovie of this remarkable journey! 🎥✨
SUBMAR breaking barriers in offshore well decommissioning
Breaking barriers in offshore well decommissioningWhat once took half a day, we now achieve in just 4 hours or less. SUBMAR has reached a true breakthrough in waterjet cutting of multistring conductors — and we can prove it. Backed by rigorous testing, our innovation...
Abrasive waterjet cutting of jacket piles
We are proud to report we have successfully carried out the abrasive waterjet cutting of the piles of two platforms.It was quite a challenge as we performed the cutting work for the first time with our newly developed internal pile cutting tool along with our latest...
Decommissioning – Here we go again!
Recently we had the pleasure to mobilise our next decommissioning project in the far north.Our client was clear from the tender stage: only offshore containers in accordance with DNV 2.7-1.Full stop!Months before, we had decided to comply and started the conversion....
Lifting Hole Cutting
Submar showcases its cutting-edge lifting hole cutting capabilities, successfully executing precise 140mm diameter cuts through challenging sandwich structures comprising steel and water layers. This demonstration underscores Submar’s expertise in delivering efficient solutions for offshore decommissioning tasks.
The beast has arrived
Submar introduces its latest 1,300 bar pump with 212 L/min capacity, housed in a DNV 2.7-1 offshore container. Powered by VOLVO PENTA, it’s built for hydrodemolition and decommissioning.
Cutting Through Challenges: A New Approach to Multistring Conductor Cutting
Multistring conductor cutting presents a unique challenge—how do you maintain cutting power through water layers? At SUBMAR, we’ve tackled this problem head-on, working with a leading fluid dynamics expert to develop a cutting head that keeps the jet together. With real-world tests coming up soon, we’re on the verge of an exciting breakthrough. Stay tuned!
Close co-operation, it pays off!
When our machine designs were ready, a unique collaboration with VYTECH transformed our assembly process. By working directly in their workshop, we eliminated delays, improved efficiency, and gained valuable insights from their skilled technicians. This partnership not only streamlined production but also enriched future innovations.
Offshore Pile Cutting and Grout Removal – SUBMAR’s Engineering Approach
removing offshore platform piles packed with hard grout using a custom-engineered Grout Milling Machine and Pile Catcher tool for precise hydrodemolition.
SUBMAR, your premier partner for offshore oil and gas platform decommissioning.
SUBMAR, your premier partner for offshore abrasive waterjet cutting solutions and hydrodemolition.
With a steadfast commitment to excellence and innovation, SUBMAR specializes in delivering high-precision cutting and hydrodemolition services tailored specifically for the unique challenges of offshore projects like North Sea steel piled jacket oil and gas rig decommissioning.
Submar Subsea Services
Diving Services
Dredging and Cleaning
High Tech Cutting Technics
Abrasive Waterjet Cutting
Oil and gas rig decommissioning
Get in touch with us today to discuss your project requirements and discover how Submar can add value to your offshore endeavors.









