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北京断陷形成于新生代,受北东向及北西向断裂活动的影响。本文根据地貌、钻孔、物探、探槽等方面资料的分析,研究了北京断陷新生代沉积地层和构造演化的关系。沉积中心的迁移与断裂的活动互相对应,有着良好的构造指示作用。石油储集层的储集体积、孔隙率和渗透率,决定其对石油的储集性能。本文用理论研究和测量,证明了构造应力场是影响石油储集层孔隙率和渗透率的主要因素。
The Beijing fault depression was formed in the Cenozoic and was affected by northeast and northwest fault activities. Based on the analysis of geomorphology, drilling, geophysical exploration and exploration trenches, this paper studies the relationship between the Cenozoic sedimentary strata and tectonic evolution in the Beijing Fault Depression. The migration of the sedimentary centers and the fracturing activities correspond to each other and have a good tectonic instructing effect. The reservoir’s reservoir volume, porosity and permeability determine its reservoir properties for petroleum. In this paper, theoretical research and measurements show that the tectonic stress field is the main factor affecting the porosity and permeability of petroleum reservoirs.