【摘要】 通过对东海海域二维地震、单道地震、浅层剖面等资料进行的综合研究表明 :用于研究天然气水合物的地震资料处理应提高速度分析精度和分辨能力 ,进行子波估算 ,压制多次波 ,相对保持振幅 ,DMO,AVO及波阻抗特殊处理等。在地震剖面上天然气水合物主要特征有 :BSR、振幅异常、速度异常、AVO异常等标志特征。据此 ,可对天然气水合物进行识别和预测。东海海域是天然气水合物可能赋存的有利部位 ,其中冲绳海槽是天然气水合物成藏的目标区域。更多还原

【Abstract】 By using 2D seismic data, single trace seismic data and shallow section etc., the East China Sea area is studied in general. To process the gas hydrates seismic data should improve the accuracy of velocity analysis and the resolution, estimate the wavelet, suppress the multiples, preserve relative amplitude and specially process DMO, AVO and wave impedence. In seismic section, the character of BSR, amplitude anomaly, velocity anomaly and AVO anomaly etc. show the existence of gas hydrates. According to these characters, the gas hydrates can be identified and predicted. It should point out that the East China Sea is the favorable area where possibly contains gas hydrates, and Okinawa trough is the target area of gas hydrates reservoir.更多还原