1998 International Exposition 
and 68th Annual Meeting

Back Seismic Sources: Surface and Borehole
A new look at simultaneous sources, Craig J. Beasley*, Ronald E. Chambers, and Zerong Jiang, Western Geophysical	Acquiring and processing marine vibrator data in the transition zone, James G. Smith* and Michael R. Jenkerson, Mobil E&P Technical Center
>High fidelity vibratory seismic (HFVS) method for acquiring seismic data,K.P. Allen*, M.L. Johnson, and J.S. May, Mobil E&P Technical Center	Seismic data acquisition and processing using measured motion signals on vibrators,Keith Wilkinson* and Richard Habiak, Enertec Geophysical; and Art Siewert and Graham Millington, Mobil Oil Canada
Seismic while drilling use of pilot signals with downhole motor drilling, Flavio Poletto*, OGS; and Francesco Miranda, Eni-Agip	Development and testing of a 0.5-inch microhole geophone package, J.N. Albright*, Los Alamos Natl Lab; D.M. Woo, Mark Products; T.D. Fairbanks and J.T. Rutledge, Nambe Ge ophysical; J.C. Thomson, Lithos; et al.
The use of the seismic cone penetrometer for near-surface VSP surveys,Kevin Jarvis* and Rosemary Knight, Univ of British Columbia	Downhole multipoint measurement of SWD at Soultz and characterization of subsurface structure inside the basement, Hiroshi Asanuma*, Hakusei Liu, Hiroaki Niitsuma, Tohok u Univ; and Roy Baria, Socomine, France

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Back Interpretation and Processing Effects
3D AVO for reservoir analysis, Charles M. Skidmore, Richard O. Lindsay, and Davis W. Ratcliff, Diamond Geoscience Research Corporation	Borehole-guided long offset AVO processing for improved lithology classification, W. Scott Leaney*, Schlumberger; and Rune R. Hope, Total
3D AVO and migration David Gray*, Veritas GeoServices Ltd; Taiwen Chen and Bill Goodway, PanCanadian Petroleum Ltd	AVO detectability against tuning and stretching artifacts, Wenjie Dong, Mobil E&P Technical Center
Thin bed AVO, the effect of NMO and NMO correction on reflectivity sequences,Alessandro Castoro*, Roy E. White and Rhodri D. Thomas, Research School of Geological & Geophysical Sciences, Birkbeck & Univ Colleges	AVO attributes and noise: Pitfalls of crossplotting, Guillaume Cambois, CGG Houston
AVO - Current status and the future, Richard Arnold*, Texaco; and Edward Chiburis, ECGEO	The OpenSpirit Alliance, Ben Weltevrede, Shell International Exploration and Production

Back 3D Interpretive Modeling
Huesca "high resolution subsurface imaging and rock characterization" project,M. Peeters*, G.G. Drijkoningen, M.E. Donselaar, M.H. van Kempen, Delft Univ of T echnology	3D interval velocity/depth model building in the Southern Gas Basin UK, 3D versus 2D model building, Robert A. Meek*, Steve A. Whitney, Craig R. Dixon, Barbara M. Rozell , and Douglas W. Hanson, Conoco, Seismic Imaging Technical Ctr; and Mark Skoyles, Conoco UK
Case studies of 3D raytrace modeling for subsalt exploration and development in offshore Louisiana, Gulf of Mexico, David R. Muerdter* and Davis W. Ratcliff, Diamond Geos cience Research Corp; and Wayne K. Camp and Scott Bugosh, Anadarko Petroleum Corporation	Case history: Using gravity modeling to enhance salt interpretation, improve prestack depth migration and reduce exploration costs, Marian C. Hanna, Enterprise Oil; Andy McGrandle*, John Jeager, and Phill Houghton, ARK Geophysics
A virtual reality system for interdisciplinary petroleum exploration and production, Christopher Giertsen*, Christian Michelsen Research and Mons Midttun, Norsk Hydro Res earch Centre	>Petroleum applications of virtual reality technology: Introducing a new paradigm,Mons Midttun*, Norsk Hydro Research Centre; Christopher Giertsen, Christian Michelsen Re search
3D structural modeling: A new approach to interactively modify complex surfaces,D. Segonds* and C. Bennis, IFP; J.L. Mallet, ENSG	A new tool to seal a 3D earth model: A cut with constraints, Nicolas Euler*, GOCAD group; Charles H. Sword, Jr., Chevron Petroleum Technology; and Jean Claude Dulac, T-su rf Company

Back New Technology
FDTD modeling of the borehole EM response of a conductive ore deposit in a lossy dielectric, D. Johnson, C. Furse, and Alan C. Tripp, Univ of Utah	Optimal cross-borehole tomographic geometries, A. Curtis, Schlumberger Cambridge Research
3D seismic data processing for mineral exploration, Erick Adam* and Gervais Perron, Geological Survey of Canada; Larry Matthews, Noranda Mining and Exploration; and Bernd Milkereit, Kiel Univ	A high-resolution electrical geophysical approach to mapping marine sediments in the Atlantic coastal shelf and the Gulf of Mexico, Jeff Wynn* and Kevin Laurent, U.S. Ge ological Survey
In quest of the Holy Grail: The development and application of proprietary geophysical technology in minerals exploration, Ken Witherly, BHP World Minerals	Regularized inversion of spectral IP parameters from complex resistivity data,Partha S. Routh*, Douglas W. Oldenburg, and Yaoguo Li, Univ of British Columbia
Step and impulse calculations from pulse-type time-domain electromagnetic data,William R. Ravenhurst, Crone Geophysics & Exploration Ltd	Mapping dielectric permittivity and resistivity using high frequency helicopter-borne EM data, Haoping Huang, Greg Hodges, and Douglas C. Fraser, Geoterrex-Dighem, a div ision of CGG Canada Ltd

Back Reservoir Characterization: Fractured Reservoirs
Detection and analysis of naturally fractured gas reservoirs: Summary and synthesis,R.E. Grimm, H.B. Lynn, C.R. Bates, G.M. Mavko, and V. Kuuskraa	Automated seismic fracture extraction and analysis for reservoir characterization,C. Signer*, M. Nickel. T. Randen, Morten Ostebo, L. Sonneland, B. Reymond, T. Saeter, an d H.H. Veire, Schlumberger Geco-Prakla
The effect of fracture filling fluids on shear-wave propagation, Sean Guest*, Cees van der Kolk, and Hans Potters	P-wave AVAZ for inclined parallel fractures, Matthias Zillmer* and Dirk Gajewski, Univ of Hamburg; and Boris M. Kashtan, St. Petersburg State Univ
Anisotropic permeability in fractured reservoirs from integrated acoustic measurements,Stephen Gelinsky*, Doug Patterson, Xiaoming Tang, and Arthur Cheng, Western Atlas L ogging Services	Shear-wave splitting at vertical incidence in media containing intersecting fracture systems, Jaime Ramos-Martinez*, Andrey A. Ortega and George A. McMechan, Univ of Texas -Dallas
Cotton Valley Hydraulic Fracture Imaging Project: Feasibility of determining fracture behavior using microseismic event locations and source parameters,T.I. Urbancic* an d R.J. Zinno	Seismic imaging of Cotton Valley hydraulic fractures, Robert J. Withers, ARCO EPT; Richard Zinno, Union Pacific Resources; and Robert Dart, ARCO EPT

Back Novel Imaging
Dynamics of statics, M. Turhan Taner*, Seismic Research Corporation and Rice Univ; and A.J. Berkhout, Delft Univ of Technology	Anisotropic statics for a 2D line over a mountainous overthrust belt in Bolivia,Paul Milligan*, Univ of California-Berkeley
3D PS-wave midpoint transformation in variable media, James E. Gaiser and Alexander R. Jackson, Western Geophysical	Robust summation of dual-sensor ocean-bottom cable data, Jianwu Jiao*, Stewart Trickett, and Brian Link, Kelman Seismic Processing
Decomposition of multicomponent ocean-bottom data in two steps, Karin Schalkwijk*, Kees Wapenaar, and Eric Verschuur, Delft Univ of Technology	Compensating OBC data for variations in geophone coupling, James E. Gaiser*, Western Geophysical
Double vision: Case histories showing the value of dual processing for 3D surveys,Jack Bouska, Amoco Canada Petroleum	The realities of processing mixed-source seismic surveys, Bruce W. Hootman* and Douglas I. Hart, Western Geophysical

Back Seismic Modeling III: Novel Wavefield Techniques
An acoustic wave equation for anisotropic media, Tariq Alkhalifah, Stanford Univ	A wave-equation splitting algorithm for seismic modeling with applications to anisotropic media, Irshad R. Mufti* and Ricardo A.R. Fernandes, Federal Univ of Bahia< /TD>
Nonzero offset seismic forward modeling by one-way acoustic wave-equation,He Zhenhua* and Xiong Gaojun, Chengdu Univ of Technology; and Zhang Yixiang, South China Sea I nstitute of Oceanology	3D spectral reverse time migration with no-wraparound absorbing boundary conditions,Ernesto Bonomi, Leesa Brieger, Carlo Nardone, and Enrico Pieroni, Geophysics Area, C RS4
Fourth order, full-stencil immersed interface method for elastic waves with discontinuous coefficients, Chaoming Zhang and William W. Symes, Rice Univ	Numerical modeling of seismic wave propagation in media with distributed inclusions,Enru Liu, British Geological Survey; Tim Pointer, BG plc; John A. Hudson, Univ of Ca mbridge; and John H. Queen, Conoco
Modeling and imaging with the generalized screen algorithm, Jerome H. Le Rousseau* and Maarten V. de Hoop, Center for Wave Phenomena, CSM	An improvement to complex screen method for modeling elastic wave reflections,Xian-yun Wu* and Ru-Shan Wu, Institute of Tectonics, UCSC

Back Traveltimes II: Eikonal and Huygens
A slowness matching finite difference method for traveltimes beyond transmission caustics, William W. Symes, Rice Univ	Fast-marching eikonal solver in the tetragonal coordinates, Yalei Sun* and Sergey Fomel, Stanford Univ
A 3D FD Eikonal solver for non-cubical grids, Andree Leidenfrost* and Dirk Gajewski, Univ of Hamburg	FD Eikonal solver for 3D anisotropic media, Norman Ettrich, Univ of Hamburg
Huygens wavefront tracing: A robust alternative to ray tracing, Paul Sava and Sergey Fomel	Prestack high-resolution imaging with non-Fermat traveltimes, L. Pasasa*, F. Wenzel, Geophysical Institute, Univ of Karlsruhe; P. Zhao, PGS Tensor, Australia
3D prestack depth migration using headwave killer traveltimes, Alexander Mihai Popovici*, 3DGeo Development	3D anisotropic ray tracing on a tetrahedral mesh, Brian K. Macy*, Univ of Kansas; and Brackin A. Smith, Phillips Petroleum

Back Novel Transforms and Signal Enhancement
Multifractals and wavelets: A potential tool in geophysics, Rudolf H. Riedi, Rice Univ	Flexible wavelet transforms using lifting, Roger L. Claypoole, Jr. and Richard G. Baraniuk*, Rice Univ
Sharp deconvolution in elimination of multiples, Gennady A. Ryzhikov* and Marina S. Biryulina, Univ of Bergen	Application of acoustic wavelet transform to seismic data processing, Ru-Shan Wu, Univ of California at Santa Cruz; Xiao-Long Dong and Jing-Huai Gao, Chinese Academy of S ciences Ru-Shan Wu, Univ of California at Santa Cruz; Xiao-Long Dong and Jing-Huai Gao, Chinese Academy of Sciences
Seismic data mapping, Herman Jaramillo and Norman Bleistein, Center for Wave Phenomena, CSM	Multidimensional recursive filters via a helix with application to velocity estimation and 3D migration, Jon Claerbout*, Stanford Univ
The simplest discrete radon transform, Peter W. Cary, Sensor Geophysical Ltd	Radon domain reconstruction of irregularly sampled VSP data, C.O.H. Hindriks* and A.J.W. Duijndam, Delft Univ of Technology