A safe project site, free of UXO, boulders and debris

We provide our customers with a safe project site, free of unexploded ordnance (UXO), boulders and debris, enabling efficient subsea infrastructure development.

Offshore energy developers, operators and cable manufacturers are often faced with the unexpected challenge of UXO in their proposed subsea infrastructure projects, such as the clearance of cable corridors for future wind farms. This represents a substantial legacy risk from past wars and decades of munitions dumping on the seabed. In addition, non-UXO objects such as boulders or debris can also create significant risks of project delays during infrastructure development.

ACTIVITIES

N-Sea’s UXO ID & clearance activities

Delivering smart and efficient ‘fit-for-purpose’ site investigations and safe clearance for our customers:

Geophysical surveys

to identify potential targets on and in the seabed

Visual inspection & identification

of non-UXO or confirmed UXO objects

Disposal & clearance

of confirmed UXO and non-UXO objects

VESSELS & EQUIPMENT

Dedicated vessels and specialised equipment

We deliver our UXO ID & clearance operations with a team of experienced UXO professionals and a fleet of dedicated offshore support vessels and specialised in-house equipment:

4-Winds

Offshore support vessel equipped with our in-house UXO detecting systems and equipment

MagSense

In-house developed vertical gradiometer array specifically designed to collect and record high-resolution data in magnetically noisy subsea environments and challenging conditions

COBRA mine disposal system

To conduct controlled UXO disposal in an environmentally responsible manner

All vessels & equipment

PROJECT

NeuConnect: Safe clearance solution for Prysmian

All projects

2024 – 2024

NeuConnect Interconnector UXO ID & clearance campaign

North Sea, UK

View project

UXO ID & clearance achieved within customers’ stringent schedule targets

Multiple vessels deployed for both nearshore shallow waters and offshore operations

Vessels equipped with work-class ROVs and COBRA mine disposal systems

HOW WE OPERATE

Risk management

Disposal and removal techniques follow industry best practice while routinely applying ALARP risk management principles. N-Sea holds all required licences and permits to execute these delicate offshore operations. Our nearshore and offshore credentials are first-class, and we maintain explosive licences and permits in accordance with Dutch, German, UK and Polish legal frameworks.

Data management

Next Bricks

SAFETY & SUSTAINABILITY AND QUALITY

N-Sea ensures safety throughout the UXO operations:

Quality-assured preparation, planning and service delivery
Certified expertise in unexploded ordnance (UXO), with proven competence and experience
End-to-end resourcing through our own vessels and equipment

Safety, sustainability & quality

Contact

Want to learn more?

Please contact one of our representatives.

Sander Korte

Director Survey, UXO & IRM

s.korte@n-sea.com