Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The application of high-resolution 3D seismic data to model the
  distribution of mechanical and hydrogeological properties of a potential host
  rock for the deep storage of radioactive waste in France   In the context of a deep geological repository of high-level radioactive
wastes, the French National Radioactive Waste Management Agency (Andra) has
conducted an extensive characterization of the Callovo-Oxfordian argillaceous
rock and surrounding formations in the Eastern Paris Basin. As part of this
project, an accurate 3D seismic derived geological model is needed. The paper
shows the procedure used for building the 3D seismic constrained geological
model in depth by combining time-to-depth conversion of seismic horizons,
consistent seismic velocity model and elastic impedance in time. It also shows
how the 3D model is used for mechanical and hydrogeological studies. The 3D
seismic field data example illustrates the potential of the proposed depth
conversion procedure for estimating density and velocity distributions, which
are consistent with the depth conversion of seismic horizons using the Bayesian
Kriging method. The geological model shows good agreement with well log data
obtained from a reference well, located closest to the 3D seismic survey area.
Modeling of the mechanical parameters such as shear modulus, Young modulus,
bulk modulus indicates low variability of parameters confirming the homogeneity
of the target formation (Callovo-Oxfordian claystone). 3D modeling of a
permeability index (Ik-Seis) computed from seismic attributes (instantaneous
frequency, envelope, elastic impedance) and validated at the reference well
shows promising potential for supporting hydrogeological simulation and
decision making related to safety issues.

5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex
2
The categories of this paper are: math
19
The categories of this paper are: eess
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn