CNOOC exploration discovered China's first deep-water deep atmospheric field

The reporter recently learned from China National Offshore Oil Corporation (hereinafter referred to as "CNOOC") that the company has made another major breakthrough in exploration in the southeast of Hainan Island, and discovered China's first deep-water deep atmospheric field Baodao 21-1, with proven geological reserves of more than 50 billion cubic meters, achieving the largest breakthrough
in the Songnan-Baodao depression in more than half a century.

It is understood that in the field of offshore oil and gas exploration, water with a depth of more than 300 meters is generally called deep water, and wells with a depth of more than 3,500 meters are defined as deep wells
.
The Baodao 21-1 gas field discovered this time is located in the deep water area of the southeast of Hainan Island, with a maximum operating water depth of more than 1,500 meters and a completed drilling depth of more than 5,000 meters, about 150 kilometers away from the "Shenhai No.
1" ultra-deepwater atmospheric field, and the marine geological conditions are extremely complex
.

Wu Keqiang, chief geologist of CNOOC Hainan Branch, said that with the deepening of the formation, the quality of basic data such as earthquakes has deteriorated, the difficulty of reservoir prediction, gas content analysis and structural implementation has doubled, and the difficulty of drilling has also increased
significantly.
The successful discovery of Baodao 21-1 not only confirms the exploration potential of the Baodao sake, but also shows that China has made an important breakthrough in deep-water deep exploration technology, which has important guiding significance
for the exploration of similar strata.

According to CNOOC's overall plan, by 2025, the total proven natural gas reserves in the three basins of Yinggehai, Qiongdongnan and Pearl River Estuary in the South China Sea will reach 1 trillion cubic meters, and a "trillion cubic atmospheric area"
will be built.
Through the completed submarine gas transmission line of Asia's largest "Yacheng-Hong Kong", the high-quality clean energy on the seabed will be directly connected to the Guangdong-Hong Kong-Macao Greater Bay Area and Hainan Island, providing a strong guarantee
for regional construction and energy structure transformation.

Zhou Xinhuai, deputy general manager of CNOOC, said that CNOOC will aim to discover large and medium-sized gas fields, deepen deep-sea geological understanding and technological innovation, and actively increase the proportion of
natural gas reserves.
(Reporter Wang Lu)