Services List
- Vessels Chartering.
- Saturation and Air Diving Services
- Ordinary & Extraordinary Maintenance of SPM CALM buoy systems
- Assistance during the tanker loading/off-loading operations
- UWILD of the FPSO/FSO Installation
- Anodes revamping and installation of the CP monitoring system on platform jackets
- NDT Inspection of the offshore Structures
- Diving and ROV assistance for positioning and installation of platforms, wells etc.
- Hydro-graphic surveys (both Multi-Beam and conventional surveys) for pipeline and electric cables
- Geographical surveys and Geo technical Investigations for jack up or Semi-sub well drilling sites and pipeline route corridors
- Analog and Digital Seismic surveys
- ROV surveys: Visual and instrumental inspections of sea lines, NDT survey activities, Assistance and Monitoring of the installation of sub-sea structures, Research and Recovery
- Installation, Post trenching, Burial and Protection of pipelines for both the Oil Industry and Civil Authorities
- Installation, Burial and Protection of Submarine telecommunications and Power cables
- Special Military Surveys (underwater search and clearance)
- Civil Works
- Restoration and Maintenance of Harbour and Oil/Gas pier
- Sub-sea Technology Design and Development.
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Featured Services
VESSEL CHARTERING
 1, Liberty - Owned By Tethys
2, Melody - Brand new AHTS vessel recently acquired by Tethys Plantgeria LTD.
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SPM CALM BUOY SYSTEMS
 Preventive maintenance of calm buoy, components and accessories such as: Buoy body and compartments,Fog horns and navigational aids, Main bearing system, Inner swivel bearing system, Winch and air motor...
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ROV SERVICES
 Tethys Plantgeria Ltd. offers a complete ROV package for the underwater inspection of the following facilities: oil and gas pipeline, oil production platform,...
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DIVING ACTIVITIES AND UNDERWATER INSPECTION
 IMR of the offshore installations, Non-Destructive Testing (Corrosion, Cathodic Protection, Cracks, Weld Status, Magnetic Particle, Inspection & UT Inspection).
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UNDERWATER BURIAL AND PROTECTION
 Burial of submarine power and fiber-optical communication cables through a variety of techniques including jetting and mechanical trenching machines. Installation of protective articulated steel pipes.
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HYDROGRAPHIC AND GEOPHYSICAL SURVEYS
 Site and route surveys for the oil and gas industry. Deep ocean surveys for cable routes. Shallow water investigations and coastal engineering studies. Direction and monitoring of dredging operations.
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RADIO POSITIONING AND NAVIGATION
 Long, medium, and short ranges systems (including DGPS) to consistently provide accurate positioning performance during hydrographic and geophysical surveys.
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DATA PROCESSING AND CARTOGRAPHY
 Full range of hardware and dedicated software packages for hydrographic and seismic data processing. Data reduction, editing and analysis. Digital Terrain Model (DTM) application and dredge volume calculations.
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CIVIL WORKS
 Construction of protective barriers. Planning and construction of sewer outfalls. Inspection and repair of dams. Construction of water intakes.
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SALVAGE PROJECTS
 Search of wrecks and sunken cargoes by using latest digital sonar and acoustic technology. ROV visual inspections and instrumental survey on sunken vessel in deep water.
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