China completed its first 3,000-meter ultra-deepsea three-dimensional seismic exploration on Dec 21, according to China National Offshore Oil Corporation (CNOOC).
The achievement was made with the China-developed Haijing marine seismic exploration and acquisition equipment system, which was carried by HAI YANG SHI YOU 720, the China-built large-scale deepsea exploration vessel.
The operation was done in a 2,600-meter ultra-deepwater area at the Pearl River Estuary Basin.
It marked a major breakthrough in China's independent marine exploration technology and is of great significance in guaranteeing the country's independent control of offshore oil and gas development and improvements in its capacity for developing deepsea resources.
Haijing is the first marine seismic exploration and acquisition equipment system in China. It has ultra-low-frequency and high-precision in the 3D seismic acquisition range, making it capable of accurately creating a 3D map of deepsea terrain with complicated geological structures.
Its operation greatly enhances China's core competitiveness in exploration for oil and gas in ultra-deepsea areas, and, improves its overall research and development of marine oil and gas equipment while guaranteeing national energy security.
So far, the Haijing system has been operated in five areas covering an area of 6,552 square kilometers.
(Executive editor: Xie Yunxiao)
