Wheatstone Nears Start-up Offshore Australia
PERTH, Australia – Woodside Petroleum has issued an update on its international exploration and development programs.
Offshore Australia, the Chevron-operated Wheatstone LNG project is nearing first production. The offshore platform hook-up and commissioning, required for LNG Train 1 start-up, are complete. The trunkline is pressurized, ready to supply gas onshore. Final commissioning of onshore LNG Train 1 is also advanced and nearing completion.
LNG Train 2 construction and the hook-up of the domestic gas train modules are both progressing to schedule, with LNG Train 2 start-up targeting six to eight months after LNG Train 1 start-up.
Woodside noted that the Julimar Phase 2 development has moved into the concept definition phase. The development involves four subsea wells being tied back to existing Brunello subsea infrastructure. A final investment decision is targeted in 2019.
The Greater Enfield project is 28% complete and remains on budget and on schedule for expected first oil in mid-2019. Detailed design is nearing completion, and manufacturing of subsea and FPSO facility topsides production equipment remains on schedule to carry out offshore and shipyard construction activities in 2018.
Production from the Ngujima-Yin FPSO will be suspended from 2Q 2018 for approximately 12 months to enable shipyard modifications, the company added.
The Persephone project achieved start-up last month, six months ahead of schedule and 30% under budget. It comprises two subsea wells tied back to the existing North Rankin complex by a 7-km (4-mi) flowline.
The Greater Western Flank Phase 2 (GWF-2) project is 50% complete. The reservoir drilling program continued at the Lady Nora Pemberton drill center, with all top hole drilling completed. Well completion activities commenced as planned in July 2017, while the manufacturing of subsea production equipment is ongoing and remains on track.
The project remains on budget and is on schedule for start-up in 1H 2019. Woodside said that the project continues to pursue opportunities to accelerate completion.
As for the Browse LNG development, Woodside continues to target the development concept selection in 2H 2017 and front-end engineering and design in 2019.
The Browse Joint Venture and the North West Shelf (NWS) Project are progressing joint studies on the technical feasibility of NWS infrastructure processing the Browse resources. The proposed offshore development concept involves two gas FPSOs delivering 10-12 MMt/yr of processed gas to existing production facilities.
Development concepts comprising either an FLNG facility or use of existing LNG process infrastructure on the Burrup Peninsula continue to be investigated and assessed for the Scarborough project.
The Swell-1 well, located in WA-483-P offshore Exmouth, is scheduled to spud in 3Q 2017. The well is targeting a deep undrilled Triassic fault block which, if a commercial discovery is made, could tieback to existing facilities.
The proposed Achernar well in WA-28-P is a drill-ready prospect identified through interpretation of data from the Fortuna 3D marine seismic survey. WA-28-P is a North West Shelf Project permit that is located close to existing infrastructure, and the proposed Achernar well is planned for 2018.
Offshore Senegal, Woodside is now development lead for the SNE oil field and plans to transition to operator in due course. The foundation development concept for SNE is a stand-alone FPSO facility with an expansion capability for future tiebacks. A phased development initially focused on the less complex lower reservoir units is targeting first oil in 2021-2023.
Offshore Gabon, processing of the second azimuth of multi-client 3D seismic data for the F15 block (Doukou Dak) was completed. Drilling of the Luna Muetse Ivela-1 prospect in E13 block is expected to begin in late 2017/early 2018.