Abstract:

By means of amplitude,continuous property and velocity of seismic wave,the authors in this paper try to classify microseismic facies of the Cambrian Xisangchi Group in MoxiLongnusi Area both in the conventional seismic section snd G-log section,Together with the comprehensive study of logging,geology,microseismic facies as well as forward modeling,they also analyse the most profitable microseismic facies of the weathering shell that may keep oil and gas in this area,thus reinforcing the seismically stratigraphical study of the weathering shell of lower Paleozoic group along Leshan-Longnusi Paleo-uplift.

Key words: Mieroseismic facies, Paleocrust of weathering, Scismic stratigraphy, Moxi-Longnusi Area