潜山沉积环境图及潜山成藏条件分析

THE DEPOSITIONAL ENVIRONMENT MAP AND ANALYSIS OF OIL RESERVOIR FORMATION CONDITION OF BURIED HILLS

“潜山沉积环境图”是能够比较全面反映潜山石油地质特征的综合性图件,其具体制图方法和步骤是:①编绘潜山侵蚀面顶界几何形态;②进行室内“地质填图”;③确定潜山上披盖层的分布范围;④确定生油区。经过区域探井标定的,具有一定精度的地震叠加偏移剖面是编制“潜山沉积环境图”的基础资料。70年代末期这些方法曾用于渤海湾盆地西部的潜山成藏条件研究,取得了一定的效果。

The depositional environment map of buried hills is a comprehensive map which reflects petroleum geology of theburied hills. Detailed mapping method and procedures are as follows: (1)to map the geometric shape of the erosionsurface of the buried hills , (2)to do indoor geologic mapping, (3)to determine the distribution of the drape on theburied hills, and (4)to determine the oil and gas generation area. Stacked and migrated seismic profiles demarcatedwith regional wildcats and having certain precision are the fundamental data used for drawing the depositional envi-ronment map. In the late 70s ,these methods were used for the research of oil and gas reservoir formation condition ofthe buried hills in the western part of the Bohaiwan Basin.