论文部分内容阅读
姬塬油田池46井区位于定边县贺圈乡,构造单元属鄂尔多斯盆地陕北斜坡的西端,为一平缓的西倾单斜。到目前为止,池46砂带预测石油地质储量310×10~4 t。但是,工区储层属于典型的低孔、低渗储层,储层非均质性严重,含油饱和度低。砂体展布主要受水下分流河道、河口坝及分流间湾等沉积微相类型的控制,油田开发难度大,对该区主力层长8_2的研究表明,该层的电性特征与其他特征有很好的对应关系。着重对该区目的层电性的研究,首先从测井资料入手,对测井资料进行了标准化以及对岩心的深度归位,然后分别研究了电性与岩性、物性、含油性,以及储层四性的关系,并以此为基础,结合测井解释给出储层电性的分布特征,最后结合其他相关资料预测目的层的有利区域.
Jianyuan Oilfield Pool 46 is located in Heping Township, Dingbian County. Its structural unit is the western end of the northern slope of the Ordos Basin and is a gentle west-dip monoclinic. So far, the pool 46 belt prediction of oil geological reserves of 310 × 10 ~ 4 t. However, the reservoir in the work area is a typical low-porosity and low-permeability reservoir with serious reservoir heterogeneity and low oil saturation. The distribution of sand body is mainly controlled by sedimentary microfacies types such as underwater distributary channel, estuarine dam and shunt bay, so it is difficult to develop the oil field. The study on the main strata in this area shows that the electrical characteristics and other features Have a good correspondence. Focusing on the study of the electrical properties of the target strata in the area, we first start with the logging data, standardize the logging data and depth-centered the core. Then we study the relationship between electrical property and lithology, physical property, oil content, Based on this, the distribution characteristics of reservoir electrical properties are given based on log interpretation, and finally the favorable area of the target layer is predicted by combining with other relevant data.