gravity flow,contour current,interaction,sedimentary type,sedimentary models,Pearl River Mouth,"/>
岩性油气藏 ›› 2015, Vol. 27 ›› Issue (5): 122127.doi: 10.3969/j.issn.1673-8926.2015.05.020
王建强1,2,李双林1,2,孙 晶1,2,董贺平1,2,赵青芳1,2
Wang Jianqiang1,2, Li Shuanglin1,2, Sun Jing1,2, Dong Heping1,2, Zhao Qingfang1,2
摘要:
采用侧扫声纳和高分辨率地震方法,对南黄海盆地北部坳陷海底烃类渗漏地球物理特征进行分析,发现了与海底烃类渗漏有关的声学特征(麻坑及海底圆丘增强反射及柱状扰动等)。通过对南黄海盆地北部坳陷烃类渗漏区酸解烃的分析,认为烃类气体主要属于热成因气类型。 海底地层中发育的接近或直达海底的断层为烃类渗漏提供了运移通道和路径,海底浅表层气体的聚集和渗漏是深部地层中孔隙流体向上运移的结果。
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