International Symposium on Recent Advances in Exploration Geophysics (RAEG'95) November 13th and 14th, 1995 Siran Kaikan, Kyoto, Japan Organized by Faculty of Engineering, Kyoto University Supported by Geothermal Research Society of Japan Japanese Association for Petroleum Technology Japanese Committee for ISRM Mining and Materials Processing Institute of Japan Society of Exploration Geophysicists of Japan Society of Materials Science, Japan PROGRAM Monday, November 13th. 9:35- 9:40 Opening Remarks K. Sassa (Kyoto University, Japan) Reflection / Seismic Survey (9:40-12:00) Chairperson Y. Kobayashi (Kyoto University, Japan) 9:40-10:00 A seismic exploration over Kirishima volcanoes with new acquisition systems T. Tsutsui*, Y. Morita**, T. Kagiyama*** and Volcanological Exploration Group for Kirishima Volcanoes (*Kyoto University, **Tohoku University, ***University of Tokyo, Japan) 10:00-10:20 Parallel computation in reflection seismology T. Sato*, T. Matsuoka* and T. Tsuru** (*Japan Petroleum Exploration Co., Ltd., **Japan National Oil Corporation, Japan) 10:20-10:40 Data processing of reflection seismic data by use of neural network Y. Ashida (Kyoto University, Japan) 10:40-11:00 Reservoir fluid identification and elastic modulus description using AVO D. Santoso*, S. Alam**, L. Hendrajaya*, Alfian*, S. Munadi*** and Purwoko** (*Bandung Institute of Technology, **PERTAMINA, ***LEMIGAS, Indonesia) 11:00-11:20 3D seismic data acquisition in the strike or dip direction: which is correct? -- a controlled experiment J. A. McDonald*, D. A. Ebrom*, N. Arbi** and R. H. Tatham*** (*University of Houston, U.S.A., **Unocal Indonesia Company, Indonesia, ***Texaco Exploration & Production Company, U.S.A.) 11:20-11:40 Seismic investigations for the final disposal of spent nuclear fuel in Finland C. Cosma and P. Heikkinen (Vibrometric Oy, Finland) 11:40-12:00 Seismic survey of active faults in the northwest part of the Kanto plain, Japan K. Yamaguchi, N. Kano, T. Yokota, T. Yokokura and T. Kiguchi (Geological Survey of Japan, Japan) Seismic Experiment / Theory (13:30-15:10) Chairperson T. Mogi (Kyushu University, Japan) 13:30-13:50 Interface waves propagated along a fracture L. J. Pyrak-Nolte, S. Roy and B. Mullenbach (University of Notre Dame, U.S.A.) 13:50-14:10 Model experiment on the enhancement of seismic signal for fracture detection by injecting air bubble T. Watanabe, Y. Takami and K. Sassa (Kyoto University, Japan) 14:10-14:30 Asymptotic Green's functions A. Hanyga* and G. Lambare** (*Institute for Solid Earth Physics, University of Bergen, Norway, **Ecole des mines de Paris, France) 14:30-14:50 Irregular grid ray tracing method for complex media Xu S., Yang C.-C., Leng C.-B. and Li Y.-M. (Institute of Geophysics, Chinese Academy of Sciences, China) 14:50-15:10 Seismic prestack depth migration over ZX-buried hill Yang C.-C.*, Li Y.-M.*, Leng C.-B.** and Liu F.-G.** (*Institute of Geophysics, Chinese Academy of Sciences, **Shengli Petroleum Administration Bureau, China) Tomography (15:30-17:30) Chairperson Y. Ashida (Kyoto University, Japan) 15:30-15:50 Prospecting for auriferous ore by electromagnetic tomography Feng R., Wu J.-P. and Sun C.-C. (Institute of Geophysics, State Seismological Bureau, China) 15:50-16:10 Effect of ray distribution on reflection seismic tomography Chang X. (Institute of Geophysics, Chinese Academy of Sciences, China) 16:10-16:30 Seismic traveltime tomography in anisotropic heterogeneous media T. Watanabe, T. Hirai and K. Sassa (Kyoto University, Japan) 16:30-16:50 Some new trends in tomographic inversion X.-G. Li, K. Matson, M. D. Sacchi, T. J. Ulrych and D. R. Velis (University of British Columbia, Canada) 16:50-17:10 Research and application of crosshole tomography Cao J.-X., Zhou J.-S., Yan Z.-Q., Zhou B. and Cao X.-L. (Chengdu Institute of Technology, China) 17:10-17:30 Applied seismic tomography in China Yang W.-C. (Institute of Geophysical & Geochemical Exploration, the Ministry of Geology & Mineral Resources, China) Tuesday, November 14th. Magnetotellurics / Electromagnetics / Gravity (9:30-11:50) Chairperson T. Sugano (Kyoto University, Japan) 9:30- 9:50 Three dimensional modeling of magnetotelluric data using finite element method T. Mogi (Kyushu University, Japan) 9:50-10:10 A new magnetotelluric inversion scheme using generalized RRI method K. Yamane*, S. Takasugi* and K. H. Lee** (*Geothermal Energy Research and Development Co., Ltd., Japan, **Lawrence Berkeley Laboratory, U.S.A.) 10:10-10:30 Development of the vertical electro magnetic profiling (VEMP) method Y. Miura*, K. Osato*, S. Takasugi*, H. Muraoka** and K. Yasukawa** (*Geothermal Energy Research and Development Co., Ltd., **New Energy and Industrial Technology Development Organization, Japan.) 10:30-10:50 Recent developments in magnetotellurics for hydrocarbon exploration in Japan S. Takakura* and R. Murayama** (*Geological Survey of Japan, **Japan National Oil Corporation, Japan) 10:50-11:10 Conceptual design of the electromagnetic (EM) tomography system S. Takasugi*, Y. Miura* and E. Arai** (*Geothermal Energy Research and Development Co., Ltd., **Metal Mining Agency of Japan, Japan) 11:10-11:30 Developments of non-contact data acquisition techniques in electrical and electromagnetic explorations H. Shima, S. Sakashita and T. Kobayashi (OYO Corporation, Japan) 11:30-11:50 Study on the microgravity method and its application Wu C.-Z., Wang Q.-S. and Liu H.-C. (Institute of Geophysics, Chinese Academy of Sciences, China) Radar/ Borehole Seismology / Imaging (13:30-15:30) Chairperson T. Watanabe (Kyoto University, Japan) 13:30-13:50 Exploration of archaeological structures in deeper subsurface by means of directive antenna Y. Kobayashi*, K. Okamoto** and M. Yoda*** (*Kyoto University, **Osaka Institute of Technology, ***Board of Education, Shiga Prefecture, Japan) 13:50-14:10 Rock characterization using the borehole radar test F.-N. Kong*, F. Loset*, P. R. Jakobsen**, N. Barton*, C. Knudsen** and T. L. By* (*Norwegian Geotechnical Institute, Norway, **Geological Survey of Denmark, Denmark) 14:10-14:30 Borehole seismology -- A high resolution seismic technique for development and production applications B. N. P. Paulsson (Chevron Petroleum Technology Company, U.S.A.) 14:30-14:50 Resolution of time-frequency analysis for seismic crosshole measurements A. Lesniak and H. Niitsuma (Tohoku University, Japan) 14:50-15:10 Resolution of imaging techniques in 2D-refraction seismology E. Bruckl and E. Castillo (Institut fur Teoretische Geodasie und Geophysik, Technical University of Vienna, Austria) 15:10-15:30 Depth transform of seismic data by use of equi-traveltime planes Y. Ashida (Kyoto University, Japan) Modeling / Oil & Gas Exploration (15:50-17:30) Chairperson K. Sassa (Kyoto University, Japan) 15:50-16:10 Point-to-curve ray tracing A. Hanyga (Institute for Solid Earth Physics, University of Bergen, Norway) 16:10-16:30 Edge-and vertex diffraction in seismic modelling A. Hanyga (Institute for Solid Earth Physics, University of Bergen, Norway) 16:30-16:50 Study of the relation between sedimentation and oil & gas in a basin by logging data Li Q.-M., Duan C. and Hao T.-Y. (Institute of Geophysics, Chinese Academy of Sciences, China) 16:50-17:10 The progress of oil-gas prospecting in China Liu G.-D. and Hao T.-Y. (Institute of Geophysics, Chinese Academy of Sciences, China) 17:10-17:15 Closing Remarks K. Sassa (Kyoto University, Japan)