Can we discretize reservoir models in chronostratigraphic space ?

@inproceedings{241_cherpeau,
 abstract = { Reservoir models are commonly based on stratigraphic grids. Mallet [2004] proposes an alterna-
tive by associating reservoir geometry with a chronostratigraphic model, in which geological layers
and heterogeneities are represented at the time of deposition. Consequently, in this space, geological
layers are horizontal planes and no post-sedimentary events such as faults, folds and sedimentary
hyatus have yet occured. Such models are used to model 
ne scale heterogeneities and to perform
geostatistical algorithms.
Instead of passing from the chronostratigraphic model to the reservoir model by applying local
upscaling methods [Mallet, 2004], in this paper, we propose to discretize directly the 
ne-scale
model in chronostratigraphic space. This means to create a network of nodes, (called a pipenetwork,
[Vitel, 2007]) at which rock properties are stored. Each node has also a control volume and nodes
are linked by pipes which are used to store the transmissibility property. Such 
ne model can
then be upscaled globally using the method proposed by Vitel [2007]. Both control volumes and
transmissibilities can indeed be computed in chronostratigraphic space using sedimentation velocity
[Mallet, 2004]. Moreover, boundary conditions can be transferred from the physical space using the
chronostratigraphic parameterization.
In order to use this discretization, all the phenomena that could have occurred since the time of
rock deposition must be handled. The sedimentation velocity enables to link the time in chronos-
tratigraphic space to the actual thickness of sediments.
In this article, we explain how to discretize conforming sequences. We show that it is possible
to handle discontinuity surfaces such as faults and sedimentary hyatus from a theorical point of
view and give some keys to implement such a method. },
 author = { Cherpeau, Nicolas AND Caumon, Guillaume },
 booktitle = { Proc. 28th Gocad Meeting, Nancy },
 title = { Can we discretize reservoir models in chronostratigraphic space ? },
 year = { 2008 }
}