关键词: 川东北侏罗系, 地震资料, 速度反演, 能量吸收分析

Abstract: In the north-east of Sichuan Basin, the Jurassic stratum is a set of very great thick continental deposition. In recent year,several industrial gas wells have been gotten fmm this stratum as drilling work was developed in the shallow stratum of Sichuan Basin. So, it shows: the key for increasing a success rate of
drilling well is to find out the sandstone and supply about the hydrocarbonic information of the sandstone in the Jurassic stratum of the north-east Sichuan Basin. But, it is difficult to predict the distribution of the channel sandstone and it's hydrocartonic case because the main drilling target far Jurassic's J2s is a
interbedding constitution with a great horizontal change of the sandstone and shale. In this paper，following a synthetic research view from multiple scientific subjects，fist of all，to research carefully the J2s depositional situation in the Wu Baochang一Ihr Kouhe area of the north-east Sichuan $asin，and then，to combine the research of the geology and logging with the technology of the geophysical information analysis，the plane distribution of J2s2 channel sandstone and it's hydrocartonic case were predicted by means of the synthetic interpretalion of the velocity inversion(strata ) and energy absorption analysis (weaa) for the seismic data for the drilling well but also to explore a new way for the reservoir prediction of the shallow continental deposition in Sichuan Basin.

Key words: Jurassic of the north-east Sichuan Basin, channel sandstone, seismic data, velocity inversion absorption analysis of seismic