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古潜山是渤海湾油区特有的一种构造类型,也是我们主攻的主要对象。一九七五年以来,各油田与物探局在“四查”古潜山方面进行了大量的工作,对潜山的内幕也有一定的了解。根据盆地内的物探、钻探资料,结合边缘山区的露头观察,初步分为三大类,五小类(参看渤海湾油区古潜山内部结构图)。1.单面山构造:即地层向一侧倾斜的单斜构造,是渤海湾油区最常见的一种潜山类型。按其地貌特征可分两个亚类:(1)正地形:即地层愈老地形愈高。在山区以鲁西山区的泰山为代表,盆地内如陈家庄、埕子口、秦南凸起等,山顶出露为太古界花岗片麻岩,一侧为下古生界,一侧
Ancient buried hill is a kind of tectonic type peculiar to the Bohai Bay oil region and also the main target of our main attack. Since 1975, various oilfields and geophysical prospecting bureaus have done a great deal of work in the “four check” of buried hills and have some knowledge about the hidden inside of buried hills. According to the geophysical and drilling data in the basin, combined with the outcrop observation in the edge of the mountainous area, it is divided into three categories and five sub-categories (see the internal structure diagram of the buried hill in the Bohai Bay oil region). 1. Single-sided mountain structure: that the slope to the side of the monocline structure, Bohai Bay oil is the most common type of a buried hill. According to their topographical features can be divided into two sub-categories: (1) is the terrain: the higher the strata of the terrain. In the mountainous area, the mountain is represented by Mount Tai in the mountainous area of Luxi Mountain. In the basin, such as Chenjiazhuang, Xiazikou, Qinnan uplift, etc., the peak of the mountain is exposed as granite gneiss in the Archean, the lower Paleozoic on one side,