**Second Russian – French Workshop
“Computational Geophysics”,
Berdsk, September 22 – 25 2014 **

The Second Russian – French Workshop on Computational Geophysics is organized by Institute of Petroleum Geology and Geophysics SB RAS, Institute of Computational Mathematics and Mathematical Geophysics SB RAS, Novosibirsk National Research University and Institut National de Recherche en Informatique et en Automatique (INRIA). This Workshop will be held in the guest house “Lesnaya Skazka” (http://www.lesnaya-skazka.ru ), September 22 – 24, 2014. The working language is English, no translation is previewed.

Scientific program of the Seminar

**Monday, September 22**

1. 16.00 – 16.30 Opening

Chairmen: Laevsky Yury. & Tcheverda Vladimir.

Welcome speeches:

Mikhail I. Epov, academician, director of Institute of Petroleum Geology and Geophysics SB RAS

Mikhail P. Fedoruk, professor, rector of Novosibirsk National Research University

Yuri M. Laevsky, professor, Institute of Computational Mathematics and Mathematical Geophysics SB RAS

2. Plenary talk

Chairmen: Laevsky Yury, Tcheverda Vladimir.

16.30 – 17.30 Epov M.I. Plenary talk. TBA.

19.00 Ice-break

**Tuesday, September 23**

1. Plenary talks.

Chairman: Tcheverda Vladimir. 9.00 – 9.45. Kostin V. (iNSL MKL Dense Solvers) Powered by Intel® Math Kernel Library

9.45 – 10.30. Tveranger J. (Bergen, Uni Research, CIPR). Characterization of fault zones: constraints and challenges to description and modelling

10.30 – 11.00. Coffee-break.

2. Session “Geoelectric”.

Chairman: Antonov Evgeny.

11.00 – 11.30 Durufle M. (INRIA, Magique 3D) Optimized transmission conditions for domain decomposition methods and Helmholtz equation.

11.30 – 12.00 Ivanov M., Kremer I. (IPGG) Numerical solution of direct geoelectric problems in 3D conducting media

12.00 – 12.30 Shtabel N. (IPGG) Finite element modelling of the electric field for geophysical application

12.30 – 13.00 Nechaev O., Epov M. (IPGG) Inversion of lateral logging sounding on the base of modified optimization algorithm.

13.00 – 14.30 Lunch

Second Russian – French Workshop

“Computational Geophysics”,

Berdsk, September 22 – 25 2014

3. Plenary talks.

Chairman: Barucq Helene.

14.30 – 15.15 Laevsky Yu. (ICM&MG) Domain decomposition methods for non-stationary problems.

15.15 – 16.00. Djellouli R. (California State University Northridge) Efficient solution methodology based on local wave tracking strategy for high frequency Helmholtz problems.

16.00 – 16.30 Coffee-break

4. Session “Geoelectric”

Chairman: Shurina Ella.

16.30 – 17.00 Barucq H.*, Bendali A.☆, Diaz J.*, Fares M.§, Tordeux S.* (* INRIA, Magique 3D, ☆ INSA, § CERFACS) A Discontinuous Galerkin Method to solve the Helmholtz equation in heterogenous media

17.00 – 17.30 Surodina I., Epov M., Glinskih V. (IPGG) Numerical simulation of borehole and surface geoelectric problems on the base of GPU. 17.30 – 18.00 Antonov E.Yu., Kozhevnikov N.O. (IPGG) Inductive source electrical and magnetic polarizations: theory, modeling and experiment.

18.00 – 18.30 Mogilatov V., Goldman M. (IPGG, University of Haifa) Displacement currents in geoelectromagnetic methods.

**Wednesday, September 24**

1. Plenary talks

Chairman: Tcheverda Vladimir.

9.00 – 9.45 Virieux J. (Joseph Fourier University – Grenoble 1). Multiparametric reconstruction for near-surface imaging based on different seismic phases.

9.45 – 10.30 Barucq H. (INRIA, Magique 3D), Djellouli R. and Estecahandy E. Shape reconstruction of non-convex elastic scatterers using a regularized Newton-type method

10.30 – 11.00 Coffee-break

2. Session “Seismic waves”

Chairman: Lisitsa Vadim.

11.00 – 11.30 Brossier R., Zhou W., Operto S., Virieux J. (Joseph Fourier University – Grenoble 1) Combining diving and reflected waves for velocity and impedance models building by waveform inversion 11.30 – 12.00 Diaz J., Barucq H. and Calandra H. (INRIA, Magique 3D and Total SA) Dispersion Analysis of Discontinuous Galerkin Methods for the simulation of wave propagation 12.00 – 12.30 Bretaudeau F., Brossier R., Metivier L., Virieux J. (Universite Grenoble Alpes) First-arrival delayed-time tomography using one loop

12.30 – 13.00 Neklyudov D., Dmitriev M., Belonosov M., Tcheverda V. (IPGG and Saudi Aramco) Frequency-domain iterative solver for 3D elastic wave equation

13.00 – 14.30 Lunch

3. Plenary talks

Chairman: Tordeux Sebastien.

14.30 – 15.15 Joly P. (INRIA, POEMS) Effective transmission conditions for the transmission of elastic waves across thin layers.

4. Session “Seismic waves”

Second Russian – French Workshop

“Computational Geophysics”,

Berdsk, September 22 – 25 2014

Chairman: Tordeux Sebastien.

15.15 – 15.45 Protasov M. (IPGG) AVA-Analysis of Depth Images of Multicomponent VSP Data

16.00 – 16.30 Coffee-break

5. Session “Seismic waves”

Chairman: Protasov Maksim.

16.30 – 16.55 Barucq H. (INRIA, Magique 3D), Calandra H. (Total), Chaumont-Frelet T. (INRIA Magique 3D), Gout C. (LMI INSA-Rouen) Helmholtz equation in highly heterogeneous media.

16.55 – 17.20 Metivier L.☆* Brossier R. ☆*, , Operto S.§*, Virieux J.*☆, (*Univ. Grenoble Alpes; § Univ. Nice Sophia-Antipolis, ☆ CNRS) SMART: robustly dissipative absorbing layer and S-waves filtering for seismic wave propagation in acoustic anisotropic media

17.20 – 17.45 Bonnasse-Gahot M. (INRIA, Magique 3D), Calandra H. (Total), Diaz J. (INRIA, Magique 3D) Performance analysis of DG and HDG methods for the simulation of seismic wave propagation in harmonic domain 17.45 – 18.15 Chabassier J. (INRIA, Magique 3D) and Imperiale S. (INRIA, M3DISIM) Fourth order energy-preserving locally implicit discretization for linear wave equations

18.15 – 18.45 Diaz J., Lisitsa V., Tcheverda V. (INRIA, Magique 3D and IPGG) Coupling of the Discontinuous Galerkin and Finite Difference techniques to simulate seismic waves in the presence of sharp interface

**Thursday, September 25**

1. Plenary talks

Chairman: Tcheverda Vladimir.

9.00 – 9.45 Baina R. (OPERA) Asymptotic ray theory at the bedside of band-limited seismic imaging

2. Session “General questions”

Chairman: Tcheverda Vladimir.

9.45 – 10.15. Kolyukhin D., Torabi A., Tveranger J. Statistical analysis of fault attributes and relations between them. Simulation of fault zone structures.

10.15 – 10.45 Coffee-break

3. Session “General questions”

Chairman: Laevsky Yury.

10.45 – 11.15 Perepechko Yu., Romensky E.I., Reshetova G.V. (IGM, IM and ICM&MG) Modeling of compressible multiphase flow through elastic porous media

11.15 – 11.45 Il’in V.P. (ICM&MG) On the variational Alternating Direction Implicit methods and rational Krylov subspaces

11.45 – 12.15 Kalinkin A. (ICM&MG) Direct LA solvers for computers with distributed memory 12.15 – 12.45 Tordeux S. (INRIA, Magique 3D). A discontinuous Galerkin method whose shape functions are constructed thanks to an integral equation formulation

12.45 – 13.10 Kandryukova T., Laevsky Yu. (ICM&MG) Numerical simulation of filtration combustion

13.10 – 14.30 Lunch

4. Plenary talks

Chairman: Tcheverda Vladimir.

14.30 – 15.15 Vershinin A. (MSU, Chair of computational mechanics). Numerical modeling for geophysical applications in CAE FIDESYS.

Second Russian – French Workshop

“Computational Geophysics”,

Berdsk, September 22 – 25 2014

4. Session “General questions”

Chairman: Laevsky Yury.

15.15 – 15.45 Voronin K.(NSU), Laevsky Yu. (ICM&MG) Stream splitting schemes in numerical simulation of geodynamics

5. Session “Seismic waves”

15.45 – 16.15 Silvestrov I. (IPGG & OPERA), Baina R. (OPERA), Landa E. (OPERA) Imaging of diffraction objects using post-stack reverse-time migration

16.15 – 16.45 Gadylshin K. (NSU), Bakulin A., Dmitriev M., Golikov P., Neklyudov D., Tcheverda V. (IPGG and Saudi Aramco). Influence of free-surface related multiples on near-surface reconstruction with frequency domain full waveform inversion.

16.45 – 17.15 Coffee break

6. Session “Seismic waves”

Chairman: Lisitsa Vadim.

17.15 – 17.45 Solovev S., Tordeux S. (IPGG and INRIA Magique 3D) Efficient singular value decomposition for the geophysical inverse problems 17.45 – 18.15 Diaz J., Peron V. (INRIA, Magique 3D) Thin layer models for geophysical applications

18.15 – 18.45 Lys E., Romensky E., Tcheverda V., Epov M. (IPGG) Wave propagation through prestressed elastic media.