Pipeline seabed geophysical survey contract award : Anning & Somerville fields
Thursday 17 August 2023
A contract for a Geophysical Survey of pipeline routes, covering the Anning and Somerville field developments has been awarded to Gardline Limited following a competitive tender and evaluation process.
• Mobilisation of the Gardline Vessel “Ocean Observer” to the Anning and Somerville field locations is expected to occur during September 2023.
• In-situ geophysical investigation and laboratory testing of seabed samples taken from the preferred export routes from the Anning and Somerville sites will be conducted.
• The results of the geophysical survey will form a critical component of the Environmental Statement along with a detailed understanding of the seabed conditions to assist in the eventual pipelay
Hartshead Resources NL (Hartshead, HHR or the Company) and the JV partner Rockrose Energy (part of Viaro Group) have announced that the Company has awarded a contract for a Geophysical Pipeline Survey for the Anning and Somerville fields to Gardline Limited (Gardline), following a competitive tender and subsequent technical and commercial bid evaluation.
It is expected that the MV Ocean Observer an 80.4 metre Multi Role Survey Vessel, will be used for the work program. The Ocean Observer will be mobilised to the Anning and Somerville field locations to commence the pipeline survey in September 2023.
The main objectives of the geophysical survey are to provide the Company with confirmation of the seabed and sub seabed soil conditions to finalize the design and the efficient installation of the export pipeline route from the Anning and Somerville locations. The survey will utilize the following components:
• Multibeam echosounder – hull mounted;
• Sidescan sonar towed approximately 8m above seabed;
• Magnetometer piggy-backed to sidescan sonar;
• Sub-bottom profiler, hull mounted;
• Environmental cameras, environmental grab sampler;
• Vibrocorer and mini- CPT system to take samples/measurements in the top 6m below seabed.