黄骅坳陷白水头-唐家河地区东营组地层地震模拟及响应曲线分析

根据对黄骅坳陷白水头—唐家河地区东营组钻井资料的统计分析，设计了3种不同地质模型．用于分析不同厚度、不同孔隙度和不同流体性质的储层所表现出的地层速度和密度特性，进而通过地震正演模拟研究，得到不同储层参数状况下的响应曲线。分析响应曲线发现，在该地区，当含水砂岩厚度为20m时．其地震反射振幅最大；而含油帮岩在厚度为18m时达到最大。当孔隙度达到22％时．含油砂岩的地震反射振幅会发生极性反转；而含水砂岩在孔隙度为28％时极性反转。这就为该地区的地震储层预测提供了依据。

Geologic-seismic Simulation and Response Curve Analysis in Dongying Formation of Baishuitou-Tangjiahe Area in Huanghua Depression

Based on the drilling data of statistical analysis of Dongying formation in Baishuitou-tangjiahe area of Huanghua Depression, three different geologic models are designed to analyze the stratigraphic velocity and density properties presented by reservoirs with different thickness, porosity and fluid content. Response curves of different reservoir parameters are obtained through forward seismic simulation. It is found in response curve analysis that in the area the seismic reflection amplitude is maximum when the thickness of water-bearing sandstone is 20m , and it is maximum when the thickness of oil-bearing sandstone is 18m. When porosity is 22%, polarity reversal occurs in the seismic reflection amplitude of the oil-bearing sandstone, and it occurs in oil-bearing sandstone as porosity is 28%,which provides the basis for reservoir seismic prediction in the area.