先巴扎地区东河塘组储层预测技术及应用

Reservoir Prediction Technology and Its Application of Donghetang Formation to Xianbaza Area

巴麦地区泥盆系东河塘组储集层物性总体较差,为低孔低渗储层,储层厚度相对较薄,地震预测难度大。为有效预测巴麦地区泥盆系东河塘组有利储层分布,建立了东河塘组储集层地质模型,通过开展数值正演模拟研究分析,总结储层地震响应特征。通过三维资料提高分辨率处理,在“相控”测井资料高分辨反演的基础上,进行东河塘组储层岩性反演,识别砂体发育展布,并开展神经网络孔隙度反演,最终刻画出了先巴扎东河塘组有利储层发育展布。

The reservoir physical properties of the Donghetang formationof devonian in the Bamai area are generally poor. It is a low porosity and low permeability reservoir with relatively thin reservoir thickness, making it difficult to predict earthquake. In order to effectively predict the distribution of favorable reservoirs in theDonghetang formation of devonian in the Hamai area, this paper establishes the geological model of the reservoir in the Donghetang formation, and summarizes the seismic response characteristics of the reservoir by carrying out numerical forward modeling research and analysis. On the basis of high-resolution inversion of facies control logging data, 3D resolution processing is adopted to carry out lithology inversion of Donghetang formation, identify the development and distribution of sand body, and carry out neural network porosity inversion, finally describethe favorable reservoir development and distribution of Xianbaza Donghetang formation.