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Marine seismic exploration is the main technical means for offshore oil exploration. At present, China’s offshore seismic exploration equipment is all dependent on imports, and it is limited by technology in terms of equipment working depth and spacing, which restricts the research and implementation of advanced marine seismic exploration methods in China. Hampered the progress of China's oil industry in the deepwater sector.
During the “Twelfth Five-Year Plan†period, China National Offshore Oilfield Services Co., Ltd. shouldered the task of “completely researching deepwater and high-precision seismic exploration systemsâ€. Based on the “Eleventh Five-Year Plan†863 achievements, the project carried out independent offshore high-precision exploration kits. And the development of core technologies has enabled pilot demonstration applications. The project has achieved breakthroughs in key technologies such as large-capacity seismic data acquisition, solid streamer, high-precision real-time coordinate solution, and lateral cable control, and developed a deep-water seismic exploration system with independent intellectual property rights and complete sets, including high-precision dragging. Cable seismic acquisition equipment, streamer positioning and control equipment, seismic integrated navigation system, source control equipment and high-precision seismic data processing and interpretation system; established a complete set of process flow and standard system for the manufacture, maintenance and inspection of streamers and waterbirds. And supporting facilities, already have industrial conditions.
At present, the system has been equipped with most of the physical exploration vessels such as Binhai 512, Binhai 511 and Offshore Oil 707, and completed the sea trials and production applications in 9 working areas. A total of 4328 km of 2D seismic data and 423 km2 of 3D seismic data were collected. After 10 years of hard work, the independent equipment system has broken through the technological limitations of working depth and spacing of imported equipment. It has carried out tests on new methods such as deep cables, oblique cables, and high density, steadily pushing forward to production applications and achieving good results. Industrial application of scientific research results.
China has mastered the core technology of high-precision seismic exploration at sea
[China Instrument Network Instrument R&D] On April 6th, it was learned from the China 21st Century Agenda Management Center of the Ministry of Science and Technology that the project of "Development of Complete Sets of Deepwater and High-precision Seismic Exploration System" in the field of marine technology in 863 Plan passed the acceptance, indicating that China has fully grasped The core technology of complete sets of equipment for offshore high-precision seismic exploration systems with independent intellectual property rights provides strong technical support for China's offshore oil exploration and development.