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About the Event Overview The 18th International Workshop on Seismic Anisotropy (18IWSA) will be held at the Ye’arim Hotel in Kibbutz Ma’ale Ha’Hamisha, located in the Judean Mountains near Jerusalem, Israel. The workshop will cover various theoretical and application aspects of seismic wave phenomena in anisotropic media, mainly related to the determination of the subsurface Earth model. The main focus will be on “inversion” of anisotropic rock properties from seismic data, using different modeling, imaging, characterization and optimization methods. We invite you to submit an Abstract to present, and to register to attend, according to the dates below. Everybody is warmly welcome! Image Description PROGRAM AND AN ABSTRACTS Suggested Topics The effect of rock physics on seismic anisotropy Anisotropic model parameterization Seismic forward modeling in anisotropic elastic/anelastic media Seismic imaging in anisotropic elastic/anelastic media Ray-based tomography in anisotropic media Wave-equation based inversion (FWI) in anisotropic media Anisotropic effective model parameters and kinematic/dynamic approximations Fracture characterization in azimuthally-anisotropic unconventional reservoirs S-wave anisotropy Surface-wave anisotropy Passive seismic in anisotropic media Borehole geophysics and VSP in anisotropic media Agenda - Click the title to see the abstract Sunday, November 4, 18:00 Icebreaker Monday, November 5 Morning Session: Rock Physics related topics, Chair: Igor Ravve 09:00:09:15 Greeting words by Zvi Koren 09:15-09:30 Opening words by Leon Thomsen 09:30-10:20 Boris Gurevich (Curtin University), Effect of equant porosity, fluids and frequency on fracture- and stress-induced anisotropy 10:30-10:50 Karine Labat, Irina Emelyanova, and Patrick Rasolofosaon (IFP Energies nouvelles), Facies identification and shale discrimination using Machine Learning - Application to well-log data and to large mudrock anisotropy databases, 11:00-11:10 Coffee break 11:10-11:30 Ksenia Nepeina (Research Station RAS, Bishkek, Kyrgyzstan),Physical effects of fracture emission according to lunar-solar tides in Tien Shan region 11:40-12:00 Yair Gordin (Ben-Gurion University of the Negev), Yossef Hatzor, and Harold Vinegar, Anisotropy evolution during early maturation of organic-rich chalk: laboratory study of VTI of the Israeli Ghareb and Mishash formations 12:10-12:30 Omri Shitrit, (Ben-Gurion University), Yossef Hatzor, Shimon Feinstein, Vyacheslav Palchik, and Harold Vinegar, “Hydrostatic strain ratio”- a new anisotropy parameter 12:40-14:00 Lunch Afternoon Session: Seismic Modeling and Effective kinematic characteristics,Chair: Ilya Tsvankin 14:00-14:50 Alexey Stovas (NTNU), and Sergey Fomel, Generalized velocity approximation 15:00-15:20 Veronique Farra, and Ivan Psencik (Institute of Geophysics, ACAD. Sci., CR), Moveout approximation for a converted wave in a moderately anisotropic homogeneous DTI layer 15:30-15:50 Veronique Farra, and Ivan Psencik (Institute of Geophysics, ACAD. Sci., CR), P-wave reflection moveout in a layered medium of moderate anisotropy 16:00-16:10 Coffee break 16:10-16:30 Liron Korkidi, Raz Litvak (Emerson), Cindy Ayache, Ronit Levy, and Zvi Koren, Azimuthally anisotropic effective parameters from full-azimuth reflection angle gathers 16:40-17:00 Vladimir Cheverda (Institute of Petroleum Geology and Geophysics), and M. Protasov, True amplitude 2D Gaussian beams-based imaging of multicomponent seismic data in anisotropic media 17:10-17:30 Galina Reshetova (Institute of Petroleum Geology and Geophysics SB RAS), Vadim Lisitsa, and Vladimir Cheverda, Hybrid algorithm for numerical simulation of seismic waves in media with local anisotropic formations Tuesday, November 6 Morning Session: Seismic Modeling and Effective kinematic characteristics, Chair: Ivan Psencik 9:00-9:50 Igor Ravve (Emerson) and Zvi Koren, Slowness-domain kinematical characteristics for horizontally layered orthorhombic media 10:00-10:20 Zvi Koren (Emerson / Tel-Aviv University), and Igor Ravve, Eigenray tracing in 3D heterogeneous anisotropic media using Finite Element Method 10:30-10:40 Coffee break 10:40-11:00 Igor Ravve (Emerson) and Zvi Koren, Directional derivatives of ray velocity in anisotropic elastic media 11:10-11:30 James Gaiser (Gaiser Geophysical Consulting), S-wave radiation from point sources in orthorhombic media for SP-wave data, 11:40-12:00 James Gaiser (Gaiser Geophysical Consulting), SP-wave surface-seismic signatures in orthorhombic media 12:10-12:30 Ludek Klimes (Charles University, Prague, Czech Republic), Frequency-domain ray series for viscoelastic waves with a non-symmetric stiffness matrix 12:40-14:00 Lunch Afternoon Session: Tomography and other Scientific topics Chair: Boris Gurevich 14:00-14:50 Vladimir Li, and Ilya Tsvankin (Colorado School of Mines CWP), Antoine Guitton, Hui Wang, Image-domain wavefield tomography for transversely isotropic media, 15:00-15:20 Yuriy Ivanov (NTNU), and Alexey Stovas, Normal modes in anisotropic media of orthorhombic symmetry, 15:30-15:40 Coffee break 15:40-16:00 Patrick Rasolofosaon (IFP Energies nouvelles), Universal class of Nonlinear Mesoscopic Anisotropic Elastic Materials – Theoretical models and Experimental corroboration 16:10-16:30 Tatiana Chichinina (Instituto Mexicano del Petróleo), Vladimir Sabinin, Dmitry Popov, Viacheslav Polovkov, Jianxin Wei, and Pinbo Ding, Fracture-direction estimation by analysis of azimuthally varying attenuation, Part 1: Theory and QVOA Method, 16:40-17:00 Tatiana Chichinina (Instituto Mexicano del Petróleo), Vladimir Sabinin, Dmitry Popov, Viacheslav Polovkov, Jianxin Wei, and Pinbo Ding, Fracture-direction estimation by analysis of azimuthally varying attenuation, Part 2: QVOA-method validation on physical modeling and numerical modeling data 17:10-17:30 Yuan Gao (Institute of Earthquake Forecasting, China Earthquake Administration), Yutao Shi, and Qiong Wang, Seismic anisotropy beneath in the margin zone around Tibetan Plateau Wednesday, November 7: A tour in Jerusalem and the area Thursday, November 8 Morning Session: Anisotropic earth model building and Case Study, Chair: Leon Thomsen 09:00-09:50 Ran Bachrach (Schlumberger), Anisotropic earth model building using seismic and geomechanics: Current status and new directions 10:00-10:20 Sergey Birdus (CGG), Alexey Artemov, Dana Iwacho, and Cristina Angheluta, 3D MAZ PSDM velocity modeling with tilted orthorhombic anisotropy. Example from NW Australian shelf 10:30-10:40 Coffee break 10:40-11:00 Theodore Stanoev (Memorial University, St. John's, NL), and Michael Slawinski, On traveltimes in Backus media 11:10-11:30 Tian-Jue Li, Qi-Fu Chen (Institute of Geology and Geophysics, Chinese Academy of Sciences), Yinshuang Ai, Complicated crustal deformation beneath Northeast China revealed by receiver function analyses 11:40-12:00 Petr Bulant (Charles University in Prague, Faculty of Mathematics and Physics, Department of Geophysics), Feasibility of anisotropic inversion based on P-wave travel–time curves 12:10-12:30 Qifan Liu, and Ilya Tsvankin (Colorado School of Mines, CWP), Stacking-velocity tomography for tilted orthorhombic media 12:40-14:00 Lunch Afternoon Session: Dynamic Characteristics, Chair: Ran Bachrach 14:00-14:50 Leon Thomsen (University of Houston), Weak Anisotropic Polarizations 15:00-15:20 Milosz Wcislo (Institute of Rock Structure and Mechanics,Acad. Sci. CR), and Ivan Psencik, SH-wave reflection coefficient in an isotropic, weakly attenuating medium 15:30-15:40 Coffee break 15:40-16:00 Alexey Stovas (NTNU), Yuriy Roganov, and Vyacheslav Roganov, Interaction between P, S1 and S2 waves in multi-layered ORT media at low frequencies 16:10-16:30 Roman Pevzner, Boris Gurevich (Curtin University), and Andrej Bona, Measuring shear-wave splitting from VSP data using multicomponent velocity analysis 16:40-17:00 Marina Pervukhina, Vassili Mikhaltsevitch, and Patrick Rasolofosaon (IFP Energies nouvelles), Combined effects of silt and organic matter on elastic anisotropy in shales 17:10-17:30 Edan Gofer (Schlumberger), and Ran Bachrach, Rayleigh wave inversion for a vertically fractured TI medium, Friday, November 9 Morning Session: Azimuthally-dependent models, Chair: Leon Thomsen 9:00-9:20 Heloise Lynn (Lynn Incorporated), (WebEx), Oil production data compared to azimuthal near-angle amplitudes and AVAZ 9:30-9:50 Heloise Lynn (Lynn Incorporated), and Bill Goodway, (WebEx), Effective Porosity Sensed Changing by Azimuth: a linear crossplot of azimuthal P-P (near-angle amplitudes, AVO gradients) 10:00-10:10 Coffee break 10:10-11:00 Free discussion, suggestions and vote for 19 IWSA venue Important Dates April 15, 2018 – registration opens June 1, 2018 - abstract submission opens July 30, 2018 - abstract submission deadline October 15, 2018 – registration deadline Committees & Sponsors Committees Local Organizing Committee Zvi Koren (TAU/Paradigm), Chair Dan Kosloff (TAU, SeismicCity) Ran Bachrach (Schlumberger) Moshe Reshef (TAU) Technical Program Committee Igor Ravve (Paradigm) Chair Leon Thomsen (Delta Geophysics) Ivan Psencik (Czech Academy of Sciences) Sergey Fomel (UT Austin) Ilya Tsvankin (Colorado School of Mines) Alexey Stovas (Norwegian University of Science and Technology) Boris Gurevich (Curtin University) Information The conference will be held at Ye’arim Hotel in Ma'ale HaHamisha; a Kibbutz in the Judean Mountains. This location is away from urban centers so as to encourage discussion and networking between conference participants. Jerusalem, one of the oldest cities in the world and a holy place for Judaism, Christianity and Islam, is 20 minutes' drive from Yeaarim Hotel. For more information about the Ye'arim hotel http://eng.yearimhotel.com/About Travel Information: Yeaarim hotel - Ma'ale HaHamisha is easily reached by a shuttle from TAV International Airport (Ben-Gurion airport) 20 minutes' drive. NESHER Shuttle – the station is outside of the welcome hall (arrival hall) on the right side (the price around 80 NIS per person) Special TAXI- the TAXI station is outside of the welcome hall (arrival hall) on the left side. (the price around 230 NIS)