Audacia pipelay vessel on Barossa project (Credit: Allseas)
(Credit: Allseas)
(Credit: Allseas)
(Credit: Allseas)
Offshore set up contractor Allseas has made progress on the set up of the pipeline for Santos’ Barossa Gas Export Pipeline (GEP) undertaking offshore Australia.
Allseas’ Audacia pipelay vessel has put in her largest ever PLET in S-mode, concluding a number of years of in-house engineering, fabrication and testing, the Swiss-based contractor stated.
Due to the load of the pipeline finish termination construction, Allseas’ manufacturing crew needed to set up it individually to the connector head.
Audacia vessels is being supported with 4 different vessels – Fortitude, Alegria, Felicity and Fortress – that are laying the 262-kilometre-long Barossa GEP.
The 26-inch diameter pipeline will join the Barossa area improvement to the longer term Darwin Pipeline Duplication, transporting pure gasoline to the Darwin LNG facility in Australia’s Northern Territory.
Australian oil and gasoline agency Santos, as operator of the Barossa three way partnership, reached a remaining funding determination (FID) for the Darwin Pipeline Duplication Project in Augustu 2022.
To put together for putting in the payload, the in-house design was examined extensively final yr, in response to Allseas. Offshore crew landed the PLET safely onto its mudmat foundations, put in to pinpoint accuracy earlier within the marketing campaign by Fortitude.
“To make it work, we had to come up with a design that worked in S-mode, so over the stinger, as opposed to J-mode, over the side,” stated Dennis Telders, Allseas’ Project Manager.
Allsesas’ scope of labor contains the set up of 262-km, 26-inch carbon metal export pipeline with exterior anti-corrosion and concrete coating, procurement of coated line pipe, and design, fabrication and set up of two PLETs.
Also, the corporate is in control of pipeline route optimization and mattress set up on the crossing places, pre-commissioning actions (flooding, cleansing, gauging and hydro-testing), in addition to post-lay and as-built surveys.
As a part of the Darwin Pipeline Duplication Project, the Barossa GEP might be prolonged to the Santos-operated Darwin LNG (DLNG) facility and permit for the repurposing of the present Bayu-Undan area to Darwin pipeline to facilitate carbon seize and storage (CCS) choices.
Gas from the Barossa area, positioned 300 kilometers north of Darwin, is meant to exchange the present provide from the Bayu-Undan facility positioned in Timor-Leste. First gasoline manufacturing at DLNG utilizing Barossa gasoline is focused for the primary half of 2025.
To remind, the works on the Barossa gasoline area pipeline was on pause since November 2023 till January 2024, after an Australian court docket dominated in favor of Santos in a dispute with an Indigenous man trying to pause the work.
