西南石油大学学报(自然科学版)

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Study of Seismic Sedimentology on Paleogene Thin-bedded Sand
Section in Quele,Tabei Uplift

  

  • Online:2013-08-01 Published:2013-08-01

Abstract:

Seismic sedimentology is the use of seismic data to study sedimentary rocks and the processes by which they are
formed. It mainly use 3D seismic information and modern geophysical technology to study sedimentary systems,sedimentary
facies spread and its evolution history. We use the technology of the frequency spectrum decomposition and stratal slicing,the
key wells constraints to facies types,as well as geomorphic features of different sand shapes to start seismic sedimentological
studies in paleogene thin-bedded sand section in Quele,Tabei Uplift. By analyzing a series of typical stratal slices,we find that
the target zone is mainly subaqueous distributary channel of fan-delta,the delta lobes override in vertical profile,and lacustrine
mudstone deposits between underwater distributary of fan-delta.

Key words: seismic sedimentology, frequency spectrum decomposition, GR quasi-acoustic inversion, stratal slicing, sedimentary
microfacies