<h1>Dongfang 13-3 Gas Project,Hainan,China</h1><p>The Dongfang 13-3 Gas Project is an operating offshore gas project in Hainan,China. It is operated by CNOOC and owned by CNOOC Ltd. Production started in July 2025,and the project is in ramp-up status. The development is a conventional natural gas project in the Yinggehai Basin,within Block 16/08. CNOOC identifies it as the Dongfang 1-1 Gas Field 13-3 Block Development Project. The project uses a new unmanned wellhead platform and ties into existing Dongfang gas field processing facilities. It is part of CNOOC’s offshore gas network supplying Hainan,Guangdong,and the wider southern China market. CNOOC described it as China’s first offshore high-temperature,high-pressure,low-permeability natural gas project.</p><h2>Quick Facts</h2><table><tbody><tr><th>Item</th><th>Details</th></tr><tr><td>Project Name</td><td>Dongfang 13-3 Gas Project</td></tr><tr><td>Country</td><td>China</td></tr><tr><td>Subnational Unit</td><td>Hainan</td></tr><tr><td>Fuel Type</td><td>Gas</td></tr><tr><td>Production Type</td><td>Conventional</td></tr><tr><td>Status</td><td>Operating; ramp up</td></tr><tr><td>Operator</td><td>CNOOC</td></tr><tr><td>Owner(s)</td><td>CNOOC Ltd [100%]</td></tr><tr><td>Parent Company</td><td>CNOOC Ltd</td></tr><tr><td>Production Start Year</td><td>2025</td></tr><tr><td>Onshore/Offshore</td><td>Offshore</td></tr><tr><td>Basin</td><td>Yinggehai</td></tr><tr><td>Block(s)</td><td>Block 16/08</td></tr></tbody></table><h2>Location and Basin</h2><p>The project is located offshore Hainan,China,in the Yinggehai Basin,at an average water depth of approximately 67 meters. It is associated with Block 16/08. The Yinggehai Basin is an offshore gas province,and the Dongfang fields are part of CNOOC’s gas portfolio serving southern China.</p><h2>Ownership and Operatorship</h2><p>CNOOC operates the project,and CNOOC Ltd holds 100% interest. No foreign joint-venture partners are identified. CNOOC Ltd is the listed upstream subsidiary of China National Offshore Oil Corporation.</p><h2>Development History</h2><p>CNOOC announced on July 29,2025,that the Dongfang 1-1 Gas Field 13-3 Block Development Project had been brought on stream. The project is in ramp-up status,with six development wells planned. A final investment decision year is not publicly confirmed. The development connects the Dongfang 1-1 gas field with the Dongfang 13-2 gas field using existing processing facilities.</p><h2>Infrastructure and Facilities</h2><p>The main production facility is a new unmanned wellhead platform. The project uses existing Dongfang gas field processing facilities. Six development wells are planned. The average water depth is 67 meters. No FPSO,LNG train,or floating production system is identified. Detailed pipeline or subsea tie-in information is not publicly available.</p><h2>Production and Reserves</h2><p>CNOOC stated that the project is expected to reach peak production of approximately 35 million cubic feet of natural gas per day in 2026. Production started in 2025 and the project is in ramp-up. Recoverable reserve figures are not publicly available.</p><h2>Recent Developments</h2><p>The key recent development is the July 2025 start-up announcement by CNOOC. The project is expected to achieve peak production in 2026. It is part of CNOOC’s broader production growth strategy,which included a 2025 production target of 760–780 million barrels of oil equivalent.</p><h2>Related Topics</h2><ul><li>CNOOC offshore gas projects</li><li>Dongfang gas fields</li><li>Yinggehai Basin</li><li>Offshore China natural gas</li><li>High-temperature high-pressure gas development</li><li>Low-permeability gas reservoirs</li><li>Unmanned offshore wellhead platforms</li><li>Brownfield offshore tie-ins</li><li>South China Sea upstream projects</li></ul><h2>Sources</h2><ul><li><a href="https://www.gem.wiki/Dongfang_13-3_Gas_Project_%28Hainan%2C_China%29" rel="nofollow noopener" target="_blank">Global Energy Monitor,Dongfang 13-3 Gas Project</a></li><li><a href="https://www.cnoocltd.com/english/presscenter/pressreleases/2025/202507/t20250729_116823.html" rel="nofollow noopener" target="_blank">CNOOC Limited,Dongfang 1-1 Gas Field 13-3 Block Development Project start-up announcement</a></li><li><a href="https://www.cnoocltd.com/english/" rel="nofollow noopener" target="_blank">CNOOC Limited,company profile and upstream business overview</a></li><li><a href="https://www.nsenergybusiness.com/projects/dongfang-gas-field/" rel="nofollow noopener" target="_blank">NS Energy,Dongfang gas field development background</a></li><li><a href="https://en.sasac.gov.cn/2022/03/02/c_10889.htm" rel="nofollow noopener" target="_blank">State-owned Assets Supervision and Administration Commission of China,Dongfang 13-2 gas field background</a></li><li><a href="https://www.cnoocengineering.com/english/ProjectsTop/OffshoreOilGas/202411/t20241104_100394.html" rel="nofollow noopener" target="_blank">Offshore Oil Engineering Co.,Dongfang 13-2 platform project information</a></li><li><a href="https://www.reuters.com/business/energy/chinas-cnooc-sets-2025-output-target-new-high-2025-01-22/" rel="nofollow noopener" target="_blank">Reuters,CNOOC 2025 production target</a></li></ul>

IEPTC reference profile for Dongfang 13 - 3 Gas Project,Hainan in China,covering asset type,location,development status,and upstream industry context.

Dongfang 13 - 3 Gas Project,Hainan,China

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Dongfang 13 - 3 Gas Project,Hainan,China

Dongfang 13 - 3 Gas Project,Hainan,China

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