关键词: 多参数岩性地震反演, 砂砾岩, 储层预测, 应用, 三台子洼陷, 大民屯凹陷

Abstract: It is the key to identify effective reservoirs from large sandstone body during exploration of Santaizi subsag of Damintun sag. There is no difference in acoustic transit time between this kind of wall rock and reservoir, so it is impossible to recognize by using the properties of wave impedance. Comparative logging analysis shows that there exist remarkable differences in spontaneous potential (SP) and conductivity between petroliferous glutenite segment and wall rock segment. Therefore, it is available to effectively identify reservoirs by selecting SP or induction curves with electric properties sensitive to the reservoir characteristics of the studied area, forming a linkage between the curves and seismic information, and then applying multi-parameter lithologic seismic inversion. Industrial oil output are obtained from the two exploration wells which are deployed on the basis of using the inversion results. This can be a good reference to the recognition of similar reservoirs

Key words: multi-parameter lithologic seismic inversion, glutenite, reservoir prediction, application, Santaizi subsag, Damintun sag