辽河盆地及其邻区遥感图像的石油地质分析

通过对不同种类、不同波段及不同处理方法所获得图像的分析表明, 一种卫片组合图像处理 方法, 即线性拉伸-直方圆调整-局部增强-彩色级上色所产生的图像, 对了解辽河盆地前第三 系基底起伏状况及其结构特点具有良好效果。 地质解译分析肯定了北东(含北北东)向线性构造的主导作用, 但同时遥感信息强烈地反映 了北西向线性构造对盆地构造格架的影响。地质解译还表明, 辽河盆地的环形影像具有两个明显 特点:(1)浅色影像以反映正向构造为主;(2)深色影像以反映负向构造为主, 而已知油田在 标准假彩色图像上也具有明亮的浅色圆形或块状影像特征。因此, 可结合其它地质资料的综合分 析, 以类比方法来预测新的油气田。

THE PETROLEUM GEOLOGICAL ANALYSIS OF REMOTE SENSING IMAGE OF LIAOHE BASIN AND ITS NEAR REGIONS

The images of different Kinds can be obtained by using different methods in processing satelaite data. The images of Liaohe basin, produced by a combined processing method that is linear stretch -histogram adjust-local entrance-colors, are very effective in understanding the relief and structural features of pre-Tertiary base of the area. The geological interpretation of the images confirms that the northeastern (including north-north-eastern) linear structures are dominant in the basin. However, the remote sensing data show the effect of the northwestern linear structures on the formation of the basin. The geological interpretation also reveals that the ring image of the basin has two remarkable featuers. 1). the light tone mainly represents positive structures; 2). the dark tone mainly represents negative structures. Because the known oilfields have bright light tone ring or lump shape, if additional geological data are also Syntheticalay analyzed, new oilfields can be Predicted by the method of analogy.