天然气水合物BSR的识别与地震勘探频率
The seismic frequency effect on recognition of the BSR of gas hydrate
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摘要: 地震勘探是调查天然气水合物广泛使用而有效的方法,而BSR是水合物赋存的主要标志.通过对实际调查资料的分析对比,结合国外的调查研究成果,探讨了地震勘探频率在BSR识别中的影响和作用,提出了在我国海洋天然气水合物的地震调查中有利于BSR识别的合适的频率范围.Abstract: Seism is most common and available way for gas hydrate survey,the bottom simulating reflector(BSR) is the most obvious indicator of gas hydrate.The BSR behaviors with different seismic frequency from the gas hydrate survey in the South China Sea were discussed,the BSR can be recognized easier and its continuity becomes better with lower frequency.From the analyses on the reprocessing profiler,a domain frequency(40~70 Hz) is suggested forgas hydrate seismic reconnaissance survey.
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Key words:
- gas hydrate /
- BSR /
- seismic frequency /
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