Lithological Reservoir Prediction Research In The Southern Section Of Wen'an Slope

As the Huabei oilfield enters the advanced stage of advanced exploration and development,the geological conditions of oil and gas reservoirs are complicated.More advanced and systematic research methods and techniques are urgently needed to cope with the increasing difficulty of exploration and development.Reservoir prediction technology is bound to be an indispensable research method in the complex reservoir exploration in the future.On the basis of understanding the geological background of the whole basin,the main sedimentary environment and the tectonic forces and the main sedimentary environment of the paleogene in the lower part of the slope are determined.The detailed structure of the lithological body is explained and the structural characteristics of the lithology are carried out.Based on the high resolution sequence stratigraphy,the stratigraphic hierarchy of seismic,drilling and logging data are fully utilized.The analysis of the distribution characteristics and potential of the reservoir is carried out.The seismic properties of seismic properties were optimized to predict the characteristics of the sand body.The distribution of longitudinal oil groups is predicted by logging constraint seismic inversion.By optimizing wavelet and seismic interaction calibration,the corresponding characteristics of lithological earthquakes are carried out.Through frequency and optimized seismic attributes,optimizing amplitude predicting thin layer of sand body and thin interbed reservoir distribution characteristics,and to carry out the seismic facies analysis,optimizing the favorable facies belt;Through optimizing parameters,establish the sand-shale impedance range,get more properties such as spontaneous potential,natural gamma ray,accurately predicting the horizontal distribution characteristics of sand body,the distribution of sand body;By means of core observation,combined with the log response characteristics,the southern section of sedimentary facies study,and make use of seismic facies and inversion results,such as comprehensive predicting favorable sand body.In this paper,the distribution of the plane and longitudinal of the Ed3-Es3 sand bodies in the south section of Wenan slope is carried out.