Research on Reservoir Prediction With High Precision Based on the Control of Logging and Seism

Abstract

With the continuous development of detailed reservoir description technology, the research of multiple disciplines reservoir based on the geological cognition has gradually carried out in Daqing oilfields. In this paper, the research mainly studied Putaohua oil layer of Xingshi district, and the study about the method of improving the reservoir prediction accuracy was carried out after finishing the basic data, geological statistics formation, fine seismic horizon interpretation and fault interpretation which based on the combination of logging and seism. Optimize the properties for predicting the structure through seismic attribute and post-stack density pseudo wave impedance inversion to realize quantitative characterization of sandstone and mudstone threshold value by seismic attributes, and coincidence rate showed that, the prediction accuracy of interwell channel sand body reached 85%, and results of block application showed that narrow channel sand had better continuity after the combination of logging and seism, boundary and swing position of river changed large, and interwell connectivity is more accurate, which provides a more reliable basis for the further development of the residual oil in channel sand bodies.