SCOPE OF WORK
LIGHTHOUSE has been awarded the Route Reconnaissance Survey for one of the most challenging power cable interconnections worldwide. Amid the geopolitical challenges of the Eastern Mediterranean region, the goal was to determine the feasibility of the route, in terms of maximum acceptable depth and potential geohazards and to address pre-engineering considerations. The project was completed in due time and within budget.
Preparation and Vessel Mobilization
The vessel and the instrument needed to complete the various phases of the survey where mobilised and tested in Italy.
The primary objective of a Reconnaissance Survey is to define potential geohazards and pre-route engineering considerations and to provide a feasible corridor for cable installation of the power cable system. This includes detection of major seafloor obstructions, seabed morphology, bathymetry and shallow stratigraphy.
In order fulfil the scope of work and to gather all the information useful to the costumer the survey was split into different phases:
The EuroAsia Interconnector is ensuring the security of energy of supply of the three countries and of the EU system altogether, through the integration of the isolated small systems of Cyprus and Crete with the Israeli and European Network and the uninterrupted â€“ multidirectional flow of energy.
Quality, Health, Safety and Environment
In course of the project Lighthouse implemented a series of measures to maintain high level of safety on board.
Personnel were following the guidelines of company HSE Management System, bridged with Clientâ€™s requirements by project-specific HSE Plan, Emergency Response Plan and a Risk Assessment, that identified potential project risks and ensured that the level of exposure is kept ALARP. No violations were recorded.
In general, every attempt was made to comply with industryâ€™s best practice.
The project lasted XXXXXXXX months, from XXXXXXXX. This included the Survey preparation and mobilisation of the vessel; the different phases of the Survey and the final data charting and reporting, which included a detailed geotechnical and environmental samples analysis, as required by the Customer.
For this Survey we chose to employ our R/V Odin Finder, a 50 m long research vessel, owned by Lighthouse since 2001.
The vessel has performed most of our surveys worldwide, proving her reliability and fitness to the survey operations. Being dynamically positioned, fully permanently mobilised with geophysical and geotechnical equipment, Odin Finder represents the best survey platform for a wide range of services. The survey and the processing rooms are large and fitted with all the necessary facilities for the acquisition and processing of the survey data.
Equipment on board
- Primary Positioning system: DGPS C-Nav 3050
- Secondary Positioning system: DGPS C-Nav 1010R
- Gyrocompass/Motion Reference Unit: GEM Polaris FOG-200
- Gyrocompass/ Motion Reference Unit: Teledyne TSS MAHRS
- SVP Probe: Valeport
- Navigation Software: QPS QINSy 8.0
- Bathymetric System: R2 Sonic 2024
- Bathymetric System: L3 ELAC Nautik Seabeam3030
- Sub-bottom Profiler System: Teledyne Benthos Chirp III
- Underwater Positioning: Applied Acoustics-Easytrak Lite
- Single beam Echo sounder: NAVISOUND 215 (hull mounted)
- Hydrofone Array: Sercel SEAL Streamer
- Recording System: Sercel SEAL 408 Recording System
- Seismic Source: Sercel Ming G Gun
- QC and Processing System: Promax 2D
- Water Sampling: NISKIN
- Multi-parameter probe: Idronaut Probe
- Bottom Coring: Geo Vibro corer 6000
- Bottom Sampling: Van veen Grab