Seismic Interpretation And Reservoir Prediction From The Second Part Of Heidimiao Resevoir In Yingtai-daan

This paper is guided by the sequence stratigraphy, structural geology, seismic reservoir layer predicting theory, by means of the comprehensive analysis and application of the seismic and logging data of the second part of the Heidimiao reservoir, completed the structural characteristics and the reservoir characteristics of this area.In this study, by means of the combination of the seismic data and well logging data of the second part of the Heidimiao reservoir, using the synthetic seismic record as the bridge,completed the H21, H22, H23 reflectors tracking contrast interpretation, and on this basis,compiled the corresponding structural map, and the preliminary study of the structural features of the study area in this section. According to the principle of seismic fault interpretation, combined with the coherent body and 3D visualization method, having the fault identification of the area of the black stratum, and the comprehensive analysis of second part of segment structure characteristics.Through the analysis of the structure characteristics and the sedimentary setting and reservoir characteristics, to have the inversion prediction of the second part. Based on the data processing, combined with sensitivity analysis curve, to have the curve reconstruction inversion in frequency compensation principle, predicting the sand body distribution. Through the second part of seismic attributes, the sand body distribution, the sedimentary characteristics and the physical property to establish the reservoir prediction research ideas and predict favorable location.The fault zone are well developed, large scale fracture mainly distributed in southwest of study area, to the north and West, favorable areas are mainly distributed in the western high position of the structure, faults, lithologic up dip pinchout, lateral migration position is obvious, it is the favorable hydrocarbon source rock for the oil and gas, the seismic inversion section and dessert properties and spectral decomposition of seismic attributes show, that the seismic attributes in the central part of the study area from northwest to southeast through the development of strip attribute anomaly combination, the inversion results show that the second part of reservoir belongs to the delta front sedimentary system, individual development of the vlacustrine facies, sandstone reservoir is relatively poor, having the formation of sandstone reservoir.