Abstract: Based upon the work of many predecessors, this paper studies more deeply the physical relation between formation pressure and interval velocity, and improves two models of pressure prediction reasonably. Then it offers a distribution of abnormal formation pressures of Paleogene in the north sag of Liaoxi depression by excellently using the inversed seismic data.

摘要： 本文在前人研究的基础上,进一步分析了地层压力与地层速度之间的物理关系,较合理地改进了压力预测模型,进而运用高质量地震反演获得的绝对速度资料,对辽西凹陷北洼下第三系地层压力进行了预测,确定了其异常压力的分布.

关键词: 地震反演, 绝对速度, 异常地层压力, 早第三纪, 辽东湾断陷