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本文应用地震地层学的原理和分析方法,根据山间小湖盆的沉积特点,以地震资料为主,结合钻井资料,研究地震层序与沉积层序。特别应用了地震波参数的纵、横向变化规律,开展地震相分析,阐明六个不同反射特征的地震相。反映了泌阳凹陷沉积相的分布及砂体的纵、横向变化规律。砂体在凹陷边缘相连迭加,前缘呈朵、舌状向深凹陷分布,形成了良好的储集相带。结合构造,指出了该区深查细找油气藏的方向。
In this paper, the principle and analysis method of seismostratigraphy are applied. Based on the sedimentary characteristics of the mountain lake basin, the seismic data are mainly used. Combining the drilling data, the seismic sequence and sedimentary sequence are studied. In particular, the vertical and horizontal variation of seismic wave parameters are used to analyze the seismic facies and clarify the seismic facies of six different reflection features. It reflects the distribution of sedimentary facies and vertical and horizontal variation of sand bodies in Biyang Depression. The sand bodies are superimposed on the edge of the depression, the front edge is dull and the tongue is distributed in deep depression, forming a good reservoir facies belt. Combined with the structure, it is pointed out that the direction of deep search for oil and gas reservoirs in this area is pointed out.