Subsea Well Abandonment - Aquaterra Energy

Subsea Well Abandonment

Safe, reliable and cost-effective delivery of subsea well abandonment solutions

Solving problems: working with you to overcome the toughest subsea challenges

We understand the complexities and cost pressures involved when it comes to planning and executing subsea well abandonment programmes.

That is why leading operators and contractors turn to us for technical services they can rely on for safe, reliable and cost-effective delivery.

In collaboration with Oceaneering, we apply our global experience of decommissioning project delivery, our technical prowess and our comprehensive equipment portfolio to deliver complete, integrated solutions. Our offering includes:

  • Engineering: riser analysis; subsea riser systems
  • Interface with well: connectors; ROV hot stab; systems for subsea trees
  • Riser, tension systems and workover controls: hydraulic control units; workover controls; ROV
  • Subsea well severance and wellhead recovery: abrasive water jet cutting spread; temporary abandonment (TA) cap removal tool; wellhead recovery tool; cut verification 
  • Subsea cutting external, including dredging: diamond wire saw cutting; pile dredging tool
  • Project management: engineering and project co-ordination
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We are more than a service provider: we are equipped to be your abandonment partner, combining conventional frontline delivery with engineering and project management options to present the complete package.

We add further value by maintaining equipment availability – so we’re always ready to take on any interface, equipment or handling challenge you face.

From discipline-specific technical experts to project management professionals, our teams are on hand to provide you with the support you need.

And it’s all underpinned by a culture of collaboration, dynamism and progressive thinking.


Our Services


With a highly qualified and experienced team, our comprehensive riser analysis service is bespoke to meet the operational requirements of our customers.


Acknowledged pioneers of riser systems technologies, our subsea riser systems combines analysis, interface engineering, operational support and equipment.


We offer a variety of Subsea connectors to maximise operations including AQC connectors to reduce lead-times, capital and operational costs.

With wide-ranging experiences in a range of hydraulic solutions and services, our hydraulic control units are designed and built to suit your specification.


The interface between an ROV and subsea equipment to facilitate remote operations.

Additional Services

Alongside our own suite of services, we work collaboratively with Oceaneering who offer the following products for Subsea Well Abandonment