<h1>Greater Enfield Oil and Gas Project (Western Australia,Australia)</h1>

<h2>Overview</h2>
<p>The Greater Enfield Oil and Gas Project is an offshore oil and gas project in Western Australia,operated by Woodside Energy. The project is located in the Northern Carnarvon Basin,approximately 45 to 60 km offshore from Exmouth. It was developed as a subsea tie-back to the Ngujima-Yin FPSO,reaching final investment decision in 2016 and achieving first oil in 2019. The project is owned by Woodside Energy Ltd (60%) and Mitsui E&P Australia (40%). Greater Enfield comprises the Laverda Canyon,Norton over Laverda,and Cimatti accumulations,produced through existing Vincent-area infrastructure.</p>

<h2>Quick Facts</h2>
<table>
<thead>
<tr><th>Item</th><th>Detail</th></tr>
</thead>
<tbody>
<tr><td>Project Name</td><td>Greater Enfield Oil and Gas Project</td></tr>
<tr><td>Country</td><td>Australia</td></tr>
<tr><td>Subnational Unit</td><td>Western Australia</td></tr>
<tr><td>Fuel Type</td><td>Oil and gas</td></tr>
<tr><td>Status</td><td>Operating</td></tr>
<tr><td>Status Year</td><td>2019</td></tr>
<tr><td>Operator</td><td>Woodside Energy</td></tr>
<tr><td>Owner(s)</td><td>Woodside Energy Ltd 60%; Mitsui E&P Australia 40%</td></tr>
<tr><td>Parent Company</td><td>Woodside Energy Group Ltd 60.0%; Mitsui &amp; Co Ltd 40.0%</td></tr>
<tr><td>Onshore/Offshore</td><td>Offshore</td></tr>
<tr><td>Basin</td><td>Northern Carnarvon</td></tr>
<tr><td>Final Investment Decision Year</td><td>2016</td></tr>
<tr><td>Production Start Year</td><td>2019</td></tr>
</tbody>
</table>

<h2>Location and Basin</h2>
<p>The project is located offshore Western Australia in the Northern Carnarvon Basin,approximately 45 to 60 km from Exmouth and the North West Cape. Water depths range from about 550 to 850 metres. The development is positioned near the Vincent and Enfield field areas,using the Ngujima-Yin FPSO as the production hub. The subsea tie-back is 31 km long.</p>

<h2>Ownership and Operatorship</h2>
<p>Greater Enfield is operated by Woodside Energy. Ownership is Woodside Energy Ltd (60%) and Mitsui E&P Australia (40%). Parent companies are Woodside Energy Group Ltd and Mitsui &amp; Co Ltd.</p>

<h2>Development History</h2>
<table>
<thead>
<tr><th>Milestone</th><th>Year</th><th>Details</th></tr>
</thead>
<tbody>
<tr><td>Final investment decision</td><td>2016</td><td>Woodside and Mitsui approved the development using the Ngujima-Yin FPSO.</td></tr>
<tr><td>First oil</td><td>2019</td><td>First oil achieved in August 2019 after FPSO refit,subsea installation,and completion of 12 development wells.</td></tr>
</tbody>
</table>
<p>Laverda was discovered in 2000 and Cimatti in 2010. The development investment was approximately US$1.9 billion. The FPSO refit was completed at Keppel Tuas Shipyard in Singapore,and the vessel returned to the North West Cape in May 2019.</p>

<h2>Infrastructure and Facilities</h2>
<p>Greater Enfield includes 12 subsea wells (six production and six water injection) connected by a 31 km subsea tie-back to the Ngujima-Yin FPSO. The development uses subsea multiphase booster pumps in the Laverda area and gas lift in the Cimatti area. The FPSO modification included topsides,hull,and turret changes,as well as installation of a water flood module. No LNG trains,fixed platforms,or onshore processing plants are part of the project.</p>

<h2>Production and Reserves</h2>
<p>Global Energy Monitor reports 2P hydrocarbon reserves of 69 million barrels of oil equivalent (2017 data). Mitsui’s FID announcement also identified recoverable reserves of 69 MMboe on a 100% basis. Woodside states that Greater Enfield represents 41 MMboe as its share. Global Energy Monitor reports 2022 oil production of 14.96 million barrels per year. The crude is heavy sweet,processed through Ngujima-Yin and marketed jointly by Woodside and Mitsui. Current production should be verified from recent operator disclosures.</p>

<h2>Recent Developments</h2>
<p>NOPSEMA records list Ngujima-Yin FPSO operations as stopped and Enfield subsea infrastructure decommissioning as started. Mitsui E&P Australia states that Enfield decommissioning is scheduled for completion in 2026,while Greater Enfield and Vincent crude oils continue to be marketed jointly. Woodside still lists Greater Enfield under its Australia oil assets. No new development phases or expansions have been publicly announced.</p>

<h2>Related Topics</h2>
<ul>
<li>Western Australia offshore oil projects</li>
<li>Northern Carnarvon Basin oil production</li>
<li>Woodside Energy Australia oil assets</li>
<li>Mitsui E&amp;P Australia offshore portfolio</li>
<li>Ngujima-Yin FPSO</li>
<li>Vincent oil field</li>
<li>Enfield oil field decommissioning</li>
<li>Laverda Canyon oil accumulation</li>
<li>Cimatti oil accumulation</li>
<li>Norton over Laverda oil accumulation</li>
<li>Subsea tie-back developments</li>
<li>FPSO brownfield modification and water flood modules</li>
<li>Offshore decommissioning in Australia</li>
</ul>

<h2>Sources</h2>
<ul>
<li><a href="https://www.gem.wiki/Greater_Enfield_Oil_and_Gas_Project_%28Western_Australia%2C_Australia%29" rel="nofollow noopener" target="_blank">Global Energy Monitor: Greater Enfield Oil and Gas Project (Western Australia,Australia)</a></li>
<li><a href="https://www.woodside.com/what-we-do/operations/australia-oil" rel="nofollow noopener" target="_blank">Woodside Energy: Australia Oil</a></li>
<li><a href="https://info.nopsema.gov.au/offshore_projects/34/show_public" rel="nofollow noopener" target="_blank">NOPSEMA: Greater Enfield Project</a></li>
<li><a href="https://www.mitsui.com/jp/en/release/2016/1219556_8910.html" rel="nofollow noopener" target="_blank">Mitsui &amp; Co: Final Investment Decision Made for Development of Australian Oil Fields</a></li>
<li><a href="https://www.mepau.com.au/project/greater-enfield-project/" rel="nofollow noopener" target="_blank">Mitsui E&amp;P Australia: Vincent,Greater Enfield and Enfield Projects</a></li>
<li><a href="https://aibel.com/project/greater-enfield-ngujima-yin-fpso" rel="nofollow noopener" target="_blank">Aibel: Greater Enfield Ngujima-Yin FPSO</a></li>
<li><a href="https://www.offshore-energy.biz/woodside-gets-go-ahead-for-greater-enfield-development/" rel="nofollow noopener" target="_blank">Offshore Energy: Woodside Gets Go-Ahead for Greater Enfield Development</a></li>
<li><a href="https://www.offshore-energy.biz/first-oil-flows-from-woodsides-greater-enfield-project-2/" rel="nofollow noopener" target="_blank">Offshore Energy: First Oil Flows from Woodside’s Greater Enfield Project</a></li>
<li><a href="https://www.nsenergybusiness.com/company-news/woodside-greater-enfield-project/" rel="nofollow noopener" target="_blank">NS Energy: Woodside Begins Production from Greater Enfield Project</a></li>
<li><a href="https://www.offshore-technology.com/news/newswoodside-mitsui-approval-19bn-greater-enfield-project-development-australia-4933550/" rel="nofollow noopener" target="_blank">Offshore Technology: Woodside and Mitsui Approval for Greater Enfield Development</a></li>
</ul>

IEPTC reference profile for Greater Enfield Oil and Gas in Western Australia,Australia,covering asset type,location,development status,and upstream industry context.

Greater Enfield Oil and Gas Project (Western Australia,Australia)

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Greater Enfield Oil and Gas Project (Western Australia,Australia)

Greater Enfield Oil and Gas Project (Western Australia,Australia)

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