A seminar by: Marion Parquer at ENSG, Nancy.
On: Wednesday, 26th of August.
The optimal exploitation of a channelized reservoir necessitates the knowledge of the geological
heterogeneities impacting the flow circulation, such as shale drapes. It may be possible to observe
the most recent channel path and the abandoned meanders on seismic images, but smaller-scale
structures are generally below seismic resolution.
In this paper we propose to reconstruct channelized systems with a stochastic backward simulation of
the system. The method uses a correlation between the channel geometry and its natural migration.
Starting from the last stage of the sequence observed on reflection seismic data, the aim is to go back
in time until the early steps of evolution of the river. Clues about the palaeo-locations can be given by
the abandoned meanders. Thus, such objects are integrated step by step during the backward process.
The method has been applied on satellite images of fluvial systems. Each of the dierent resulting
geometries of the system honors most of the conditioning data and presents meandering patterns similar
to the observed ones.