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国外海上地震勘探始于三十年代,它几乎经历了陆地地震勘探的全部过程。但由于海上具有得天独厚的地震工作条件,加之效率高、成本低、见效快,因此,海上地震工作比陆地发展得快。现在,海上技术已经远远超过了陆地,诸如三维地震、高分辨率勘探等,已在海上普遍推广。我国海上地震勘探始于六十年代,二十几年来几乎重走了外国人四个多年中所走过的发展过程。到1982年共做数字剖面33万公里。从整个海域来讲,勘探程度还是很低的。因此,必须加快海上地震勘探的步伐,大力采用国外先进技术,争取尽早开发海上油气资源。
Overseas marine seismic exploration began in the thirties, and it almost experienced the whole process of terrestrial seismic exploration. However, due to the unique seismic working conditions at sea, coupled with high efficiency, low cost and quick response, the work of offshore seismology has developed rapidly over the land. Now, maritime technology has far exceeded the land, such as 3D seismic, high-resolution exploration, has been widely promoted at sea. Seismological exploration in China began in the 1960s, and in the past two decades, the process of foreigners’ development over the past four years has been almost relinquished. By 1982 a total of 330,000 km of digital profiles were made. From the perspective of the entire sea, the level of exploration is still very low. Therefore, we must speed up the pace of marine seismic exploration, vigorously adopt advanced foreign technologies and strive for the early development of offshore oil and gas resources.