SERVICES

UNDERWATER SERVICE

• TOWING WRECKS – SHIPWRECKING
• SALVAGE
• SCIENTIFIC DIVES
• UNDERWATER WELDING (with BROCO & FRONIUS)
• UNDERWATER CUTTING (with BROCO & FRONIUS)
• REHABILITATIONS – RESTORATION of KRIPIDOMA CAVE-INS
• LIFTING & LAUNCHING  STRUCTURAL UNDERWATER CONSTRUCTIONS
• UNDERWATER SHIP PROPELLER REPLACEMENT
• UNDERWATER SHIP RUDDER REPLACEMENT
• UNDERWATER SHUFT SEALING (for SHIP ENGINE ROOM WORKS)
• UNDERWATER SUCTIONS SEALING (for SHIP ENGINE ROOM WORKS)
• INSTALL SHIP ANODES
• INSTALL CATHODIC PROTECTION of STRUCTURAL UNDERWATER CONSTRUCTIONS
• UNDERWATER FUEL PUMPING of  SHIPWRECK
• UNDERWATER SEALING
• UNDERWATER CONCRETE CONSTRUCTION, LAYERING & FOUNDATIONS
• BEARING LAYER of RUBBLE
• REPAIR – RESTORATIONS of GUAYS & EMBANKMENTS
• INSTALLATION OF ANCHORAGES
• RECOVERY ANCHOR & METAL OBJECTS (with METAL DETECTOR)
• UNDERWATER BOTTOM SAMPLING
• UNDERWATER WATER SAMPLING
• PRACTICAL MANAGEMENT of MARINE POLLUTION
• CLEANING UNDERWATER PIPELINES & STRUCTURAL CONSTRUCTIONS
• UNDERWATER SAMBLASTING STRUCTURAL CONSTRUCTIONS
• UNDERWATER PROPELLER & RUDDER CLEANING

CONSTRUCTIONS & INSTALLATION

• UNDERWATER PIPELINES

• UNDERWATER STRUCTURAL CONSTRUCTIONS

• FLOATING STRUCTURAL CONSTRUCTIONS

• FLOATING PIERS & DECKS

• RUBBER PUMBER of  PORT SUPERSTRUCTURE

• PNEUMATIC FENDERS

• PORT WATER BREAKERS

• UNDERWATER BREAKERS

• FLOATING BREAKERS

• PERMANENT ANCHORAGE

• SPECIAL STRUCTURES

SEARCH & RESCUE

• UNDERWATER SEARCH – LOCATE & SECURE WAR MATERIAL

• SURFACE – UNDERWATER SEARCH & RESCUE

• UNDERWATER SEARCH & LOCATED MISSING PERSONS

• SEARCH & LOCATE SHIPWRECKS

• SEARCH & LIFTING OBJECTS from HIGH DEPTHS

• SEARCH & RESCUE CARGO SHIP – SALVAGE

• SEARCH – INSPECTION & SURVEYING

• WRECK CAUSE INVESTIGATION

• UNDERWATER SEARCH & ESTIMATE for INSURANCE COMPANIES

We have the possibility of Inspection with UNDERWATER R.O.V. in cases of Increased Risk or Increased Cost due to Operational Depth or Adverse Weather Conditions.

TECHNICAL STUDY & PROJECT PLANNING

• PORT INSTALLATIONS
• FLOATING CONSTRUCTIONS
• FLOATING PIERS
• PERMANENT ANCHORANGE
• PORT WATERBREAKERS
• FLOATING WATER BREAKERS
• UNDERWATER WATER BREAKERS
• UNDERWATER PIPELINES
• SPECIAL STRUCTURES

Underwater Ultrasonic Thickness Measurements

Underwater Ultrasonic Thickness Testing (UTT) is a well-established technique that enables accurate measurement of the thickness of metallic and other materials without requiring access to both sides of the material.

Ultrasonic testing provides high precision and rapid data acquisition, even under demanding conditions such as those found in underwater environments.

SEATEC is certified under ISO 9001:2015 by Bureau Veritas and RINA,  scope of certification:

Ultrasonic Thikness Measurements

The application of the Underwater Ultrasonic Thickness Measurements (UTT) method to the underwater sections of a vessel or other metallic structural components aims to:

• Evaluate corrosion damage caused by continuous exposure to the marine environment.

• Ensure the structural integrity of the vessel or installation.

• Comply with minimum thickness requirements as defined by international organizations and classification societies.

UNDERWATER CRACK DETECTION

Pulsed Eddy Current Method (PEC)

Underwater Crack Detection using Eddy Current (EC) is most effective for detecting surface-breaking cracks.

Its most practical applications are related to in-service inspection of welded structures subjected to cyclic loading, which may lead to the propagation of fatigue cracks in critical welded areas.

Eddy current testing is well-suited for identifying surface-breaking defects. It can detect such defects through relatively thick coatings (up to 2 mm). Underwater, multiple scans of a single weld are required to ensure no defect is missed.

Eddy current inspection is a diver-dependent technique.

During the 2nd  World War, bombs dropped by warplanes and mines from warships ended up on the seabed and remained silent witnesses to the duels that unfolded in the skies and seas of Greece.

Remnants of the 2nd World War, such as bombs, mines, grenades and explosives of all kinds, remain untouched at the bottom to this day, many of which are in working order.

SEATEC having incorporated the knowledge, skills and experience gained from the activities of the company’s owner through 20 years of training and missions in the American and Greek Navy, provides services for Locating, Identifying and Securing War Material.

If you perceive war material in a marine area of your exploitation or jurisdiction, the SEATEC Divers Team undertakes the management of the emergency and the process of informing the Competent Authorities. Once he has searched the sea area around the initial target for more munitions, becomes a reconnaissance of the munitions for the full and detailed briefing of the Authorities. Afterwards, the war material is secured to prevent its movement due to adverse weather conditions and the maritime area around the target or targets is demarcated to prevent the passage of boats and bathers. Data are also collected on the identity of the war material, its exact location, depth, and morphology as well as other data which will be included in the final report to the Competent Authorities.

SEATEC is certified according to ISO 9001:2015 by Bereau Veritas with scope of certification:

Research, localization identification & secure – setting of boundaries of war material

PROJECT STUDY & DESIGN

The collaboration with SEATEC starts from the initial design stage, clarifying the most suitable options according to the particularities of each project and the wishes of the customer.

The experience of more than 30 years of SEATEC and Shipbuilding Mechanical Engineer Skoura Eftychia and their dedication to the field of Shipping services and passion for the sea, result in the maximum technical and aesthetic level of construction.

Following the highest international standards and making the best possible use of the available sea space.

Our partner Shipbuilding Mechanical Engineer Skoura Eftychia will guide you so that your expectations converge with international standards and will prepare the submission file to the respective port authorities for the project permit application.

Our calculation studies are accurate and comply with all international standards to ensure prompt approval of licensing.

INSPECTION – MEINTENANCE & REPAIR

Technology in design and construction processes requires that floating structures have high-quality materials, consequently extending the life of the structures. Nevertheless, to ensure the smooth operation of the marina or port as well as the good condition of the floating structures, the managers must carry out regular inspections and periodic maintenance of the fixed and floating structures according to their use.

The inspection of the elements on the surface and underwater often reveals the need for an operation such as the tightening of links, the replacement or restoration of parts subject to natural wear, or the replacement of part of the mooring of structures or vessels, which when identified in time prevents the high and damaging repairs in the future.

SEATEC provides customers with inspection, maintenance and repair services.