Starting with AVO forward calculation, this paper gives analysis to the AVO abnormal characteristic of gas sand verified by drilling and proposes the AVO negative abnormal characteristic of shallow gas reservoirs in Yinggehai Basin.
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- 从AVO正演计算入手；分析了已被钻井证实的含气砂岩的AVO异常特性；提出了莺歌海盆地浅部气层所具有的AVO负异常的特殊规律；探讨AVO技术在莺歌海盆地找气的应用前景.
