Today (21st), CNOOC announced that after nearly 3 months of operation, China's independent research and development of marine exploration equipment "Haijing" system has completed 2,600 square kilometers of three-dimensional data acquisition in the Pearl River Estuary Basin, which is the first time that China has completed 3,000 meters of ultra-deepwater three-dimensional exploration operations, marking a major breakthrough in China's independent marine exploration technology.
Tow cable exploration technology is the most direct, economical and efficient method of detecting the geological structure of the seabed in the world. The operation is located in the Pearl River Estuary Basin 3000 meters ultra-deepwater block, "Offshore Oil 720" deep-water geophysical exploration ship, China's independent research and development and manufacturing of the first set of towing mode exploration complete set of acquisition equipment - "Haijing" system of 10 more than 8 kilometers of cables in turn to deploy into the seawater, forming an area equivalent to 1021 standard football fields of the data acquisition network, along the route of the sea surface towing cable collection operations, 60 days of production time to collect 40TB three-dimensional** The exploration data lays a solid foundation for the implementation of basic petroleum geological conditions such as geological structure, sedimentary filling and oil and gas migration in the construction area.
Ruan Phuc Minh, technical expert of CNOOC: The three-dimensional exploration technology realized by the "Sea Classic" system solves the bottleneck that restricts China's ocean, especially deep-sea oil and gas exploration technology and equipment, comprehensively enhances the core competitiveness of China's offshore oil and gas exploration technology, and is of great significance to enhance the overall research and development capability of offshore oil and gas equipment integration and ensure national energy security.
The average water depth of the operation area is about 2,000 meters, the maximum operating water depth is 3,500 meters, and the maximum buried depth of the exploration target layer is 5,600 meters, breaking the record of the maximum water depth of China's three-dimensional marine exploration operation. The three-dimensional exploration equipment technology of marine towing cable has been widely used in the field of energy exploration, with high technical threshold and difficult research and development.
Xu Changgui, Deputy Chief Engineer of CNOOC Exploration: The successful completion of the ultra-deepwater marine exploration operation of "Haijing" marks that China has mastered the complete set of equipment technology for deep-water marine towing cable exploration, which provides a strong equipment guarantee for China's offshore oil and gas exploration, and is of great significance for promoting China's deep-sea energy development and marine science and technology self-reliance and self-reliance.
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