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所论地区地洼发展阶段(中新生代)形成了近二百个地洼盆地,经研究表明,地洼余动期所成的地洼盆地具有较好的成油条件。就地洼余动期而言,有四个成油期,似以始新世晚期的成油期较佳。生油岩有两种类型,一是含膏-含灰-泥岩型,一是泥岩型,生油能力后者较好。根据本区地洼余动期所成的构造条件认为,围绕生油凹陷寻找断层遮挡油藏是本区找油的主要方向。在生油凹陷下部石灰岩发育的地区,对“古潜山”油藏的寻找亦不可忽视。
In the study area, the depression depression (Mesozoic and Cenozoic) formed nearly 200 diocecrates. The study shows that the diwa basin formed during the dipping period of Diwa has good oil-forming conditions. For the remaining periods of on-site depression, there are four oil-forming periods that seem to be better for the oil-producing period of the late Eocene. There are two types of source rock, one with cream - ash-mudstone type, one mudstone type, the latter is better at generating capacity. According to the tectonic conditions of the depression movement period in this area, it is considered that looking for the fault occlusion reservoir around the oil sag is the main direction for finding oil in this area. In the area where limestone is developed in the lower part of the depression, the search for “buried hill” reservoirs should not be neglected.