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Home Projects & Case Studies

Projects delivered
across the Indian Ocean

A selection of marine contracting operations carried out for port authorities, industrial clients and infrastructure owners, from subsea inspections to full port maintenance campaigns.

120+
Projects delivered
5
Countries of operation
-180m
Deepest intervention
15+
Years of track record
Our Portfolio

Selected
case studies

Click any card to open the full case study: context, scope, operations performed, challenges and key outcomes.

Ambatovy nickel plant cold water pipe subsea repair in Madagascar Madagascar Subsea

Ambatovy Nickel Plant — cold water pipe break repair

Emergency intervention on a damaged cold-water pipe supplying the nickel processing facility, with full subsea diagnostic, repair and recommissioning.

-42mDepth
18dDuration
0Incidents
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Subsea structure inspection by Bureau Veritas in La Réunion La Réunion Inspection

Subsea structure inspection — Bureau Veritas approval

Third-party certified inspection of a subsea industrial structure, delivering a full condition report and recommendations under Bureau Veritas oversight.

BVCertified
6dDuration
100%Coverage
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Port Louis Mauritius mooring devices installation project Mauritius Port

Port Louis — installation of 6 mooring devices

Engineering, supply and installation of six heavy-duty mooring devices for a major upgrade of the Port Louis maritime infrastructure.

6Moorings
24dOn site
0Delay
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CETO wave power prototype dismantling off Saint Pierre La Réunion La Réunion Decommissioning

CETO wave power prototype — dismantling & recovery

Safe removal and recovery of an experimental wave energy prototype off Saint Pierre, in compliance with local environmental authorities.

-35mDepth
15dCampaign
100%Recovered
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Takamaka hydroelectric dam underwater inspection in La Réunion La Réunion Inspection

Takamaka dam — underwater inspection

Comprehensive underwater inspection of the Takamaka hydroelectric dam, including intake structures, upstream facing and sediment conditions.

-65mMax depth
8dOn site
4KVideo survey
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Saint Benoit bridge abutment reinforcement on Rivière des Marsouins La Réunion Civil works

Saint Benoit — bridge abutment reinforcement

Underwater reinforcement of the bridge abutments on the Rivière des Marsouins, including structural surveys, rebar and concrete operations.

2Abutments
20dWorks
0Traffic impact
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Fort Dauphin submerged pipeline repair operation in Madagascar Madagascar Subsea repair

Fort Dauphin — submerged pipeline repair

In-situ repair of a damaged submerged pipeline, including diagnostic dive, clamp installation and full pressure test before recommissioning.

-28mDepth
12dDuration
0Leak post-test
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Ehoala deepwater port multi-year maintenance and bathymetry surveys Madagascar Port

Ehoala Port — multi-year maintenance & bathymetry

Framework contract for pluri-annual underwater maintenance and periodic bathymetric surveys of the deepwater Ehoala port facility.

3yrFramework
4Campaigns/yr
100%On schedule
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Tamatave Port harbour maintenance and quay wall inspection in Madagascar Madagascar Port

Tamatave Port — maintenance works

Harbor maintenance operations including fender replacement, quay wall inspections and underwater cleaning across the port's active berths.

2.4kmQuay surveyed
11dDuration
0Berth closure
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Beyond featured

Our other
projects

A snapshot of operations delivered across the Indian Ocean, Africa and beyond, organised by region.

Seanergy marine operations project in Gujarat, India
India · Gujarat

Jetty & Accropode placing

Seanergy marine operations project in Andhra Pradesh, India
India · Andhra Pradesh

Jetty & Accropodes placing

Indian Navy — restricted communications.

Seanergy marine operations project in Congo
Congo

Stabiplage Géotubes

Seanergy marine operations project in Senegal
Senegal

Aids to navigation & training

Seanergy marine operations project in South Africa
South Africa

Diamond mining & training

Seanergy marine operations project in the Comoros
Comoros

Environmental control · Moorings · Dredging

Seanergy marine operations project in Mauritius
Mauritius

Subsea welding & commercial moorings

Seanergy marine operations project in Pemba, Mozambique
Mozambique · Pemba

Marine works

Seanergy marine operations project in Maputo, Mozambique
Mozambique · Maputo

Marine works

Seanergy marine operations project in Inhambane, Mozambique
Mozambique · Inhambane

Marine works

Seanergy marine operations project in La Réunion
Reunion Island

Accropode · Subsea concrete · Pipeline · Marina dredging

2,500 m³ of concrete poured during 33 hours nonstop.

Seanergy marine operations project in the French Southern and Antarctic Lands
TAAF

Quay & bathymetric surveys

Amsterdam, Crozet, Kerguelen, Saint-Paul.

Seanergy marine operations project in Madagascar
Madagascar

DDC · ROV · Dive support vessel

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Case study

Case Study

Scope

    Key Challenges