Submarine link Sardinia-Corsica-Italy
Marine Survey, Desktop Study & Environmental
Characterisation for Cable Route Design and Engineering.
Next Geosolutions has been appointed to perform a marine survey for cable route design and engineering for the Project “Marine Survey, Desktop Study & Environmental Characterisation for the Submarine Link SA.CO.I. (Sardinia-Corsica-Italy)” in the Tyrrhenian sea.
The SA.CO.I. consists of multiple 220 kV AC connection between Italy and Sardinia.
DS consist of collation, evaluation and integration of project‑relevant information already available for preliminary assessment of site conditions and conceptual design.
The inshore and offshore survey include:
From the shoreline to the sea/land joint bays area.
Performed on existing power cables by ROV.
The SA.CO.I. submarine link was an update and development of the existing submarine cables, dating back to 1967.
We combine methodologies and innovation to reach the most efficient way to accomplish the best possible result.
Performing a DTS at an early stage in pipeline routing assessment can ease planning and decision‑making processes by:
The Visual inspection shall be carried by an ROV along the unburied cable sections. Where the cables are buried shall be use a cable tracker mounted on the ROV itself.
The underwater positioning shall be ensured by means of a USBL system, interfaced with the data logger and navigation computer.
Our performance is as important to us as it is to our Clients. We understand they rely on us and we want them to stay with us for all the years to come.
To characterize the geomorphological setting of the seabed and to detect/verify the presence of any obstacles and/or seabed features, the High Resolution Dual Frequency Digital Side Scan Sonar shall be operated for the marine survey.
A suitable sub-bottom profiling system shall be used in order to help and integrate the interpretation of sonar data and give a continuous and clear definition of the bottom nature and sub-bottom stratigraphy.
To detect any magnetic anomaly and ferromagnetic target, a suitable towed marine gradiometer shall be used during the survey.
A detailed topographic survey shall be performed at landfall both onshore and nearshore, by means of RTK DGPS technology.
We adopt QHSE Management Systems which embody all aspects of Quality Assurance, Competence Monitoring and Risk Assessment, as well as comprehensively addressing Health, Safety & Environmental issues.
Next is committed to always deliver products and services of a consistently high quality, aiming to meet and possibly exceed the Client’s requirements and expectations. The health and safety of employees and other persons involved are safeguarded, and proper regard is paid to the conservation of the environment.
NEXT QHSE Management Systems are fully in-house managed.
The resources and technologies which have concurred to the achievement of the marine survey for cable route design and engineering we have been appointed for.
|Topographic Equipment for Alongside Calibrations||DGPS-RTK Leica SR530|
|ROV–Light Work Class + Cable Detection system||Tomahawk + TSS 350|
|Primary Surface Positioning||DGPS Fugro STAR FIX 4100|
|Secondary Surface Positioning||DGPS Fugro STAR FIX 4100|
|Data Acquisition & Navigation Software||QPS QINSy software package|
|Heading & Attitude (Back-up)||Ixsea Octans|
|Underwater Acoustic Positioning System||USBL Sonardyne Ranger II|
|Multi-beam Echosounder||Reson SeaBat 8125 + Reson SeaBat 8160|
|Side Scan Sonar||Klein 3000 + Edgetech 4200|
|Sub-Bottom Profiling 1||Geoacoustics Chirp II|
|Marine Magnetometer||Marine Magnetic Seaspy|
|Sound Velocity Profiler||Valeport Midas SVP|
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