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EXTENDED ABSTRACTS BOOK
57th EAGE Conference and Technical Exhibition, Glasgow, Scotland29 May- 2 June 1995
. ORAL AND POSTER PRESENTATIONS
EAEG Division and joint EAEG/EAPG Sessions
EAGE Business Office
Laan van Vollenhove 3039PO Box 2983700 AG ZeistThe Netherlands
Telephone : +31 3404 56997Telefax : +31 3404 62640
© 1995 European Association of Geoscientists & Engineers
114 845 28X| UB/TIB Hannover
d89
CONTENTS
Foreword I
Technical Programme
Oral Presentations II
Poster Presentations XIX
Abstracts of Papers
Oral Presentations A009 - E048
Poster Presentations P001 - P162
Authors Index
Interpretation I
Chairman: K. Kolbjernsen
13.30 A0093D Prestack Depth Migration — an Aid to Deve-lopment Drilling,S.A. Whitney*, C. More, D.W. Hawson andW.S. Harlan.
13.55 A010An Interactive Tool for Time and Depth Migration,Stefan Kaculini* and Jean Arnaud.
14.20 A011Geostatistical Depth Conversion from Well andSeismic Data — a Case Study in a North SeaField, David Psaila.
14.45 A012Interval Velocity Maps of the Danish CentralTrough, North Sea, Peter Japsen.
15.10 A0133D Globally Optimized Seismic Inversion,Kim Gunn Maver*, Klaus Bo/ding Rasmussen,Jacob Moron Pedersen and loannis Abatzis.
15.35 A014A Seismic Reflection and Wide-Angle Study ofMethane Gas Hydrates, Offshore Vancouver Is-land,T.A. Minshull*, G.D. Spence and C.R. Fink.
16.00 A015Coupled P-P and P-SV Seismic Analysis of a Car-bonate Reservoir, Alberta, Canada,S.L.M. Miller*, M.P. Harrison, D.C. Lawton,R.R. Stewart and K. T. Szata.
16.25 A016Explosive Source 3D Seismic and its Impact onthe Geology of the Selby Coalfield,John M. Holt*, Malcolm E/stob and ChristopherRobson.
* denotes speaker
Rock Physics
Chairman: P.G. Kelamis
09.00 B001Stress-Dependent Elastic Wave Velocities inShales, Colin M. Sayers.
09.25 B002Comparison of Four Schemes for ModellingAnisotropic P-Wave and S-Wave Velocities inSand-Shale Systems,Shiyu Xu* and Roy E. White.
09.50 B003Compound Effect of Inter-Layer Fluid Flow andScattering on Attenuation in Finely-LayeredReservoir Rocks,B. Gurevich*, S.A. Shapiro and V.B. Zyrianov.
10.15 B004Spectrum Analysis of Pulse-Induced AcousticField in Jointed and Faulted Rock Formations,A.O. Rozanov*, V.N. Savel'ev and S.A. Stanchits.
10.40 B005Monitoring the Width of Hydraulic Fractures withUltrasonic Measurements,J. Groenenboom*, A.J.W. Duijndam andJ.T. Fokkema.
11.05 B006Estimating Permeability from P- and S-WaveVelocities and Formation Resistivity Factor,M. Nabi-Bidhendi* and M.S. King.
11.30 B007Spatial Up-Scaling of Isotropic Laboratory-ScaleGeomechanical Parameters Resulting in Large-Scale Anisotropy in Layered Subsurfaces,Wouter Zijl* and Ipo Ritsema.
11.55 B008Near-Front Spatial Profile of Wave Impulses inMicro-lnhomogeneous Media, Vladimir Rok.
* denotes speaker
Data Acquisition I
Chairman: J. Pion
13.30 B009Model-Based 3D Seismic Survey Design,Steve Slawson*, Kevin Grove and David J. Monk.
13.55 B010Monte Alpi 3D — A Unique 3D Survey in theApennine Range, Southern Italy,Giovanni La Bella *, Luca Bertelli and Luca Savini.
14.20 B011The Azimuthal Manifestation of Ground Roll in 3DSurveys, Mark S. Egan.
14.45 B012Ground Roll and Polarization,Ed Kragh* and Lloyd Peardon.
15.10 B013An Experimental Comparison Between Single andMulti-Channel Telemetry Systems in Harsj andMountainous Areas,Patrick Burger*, Pierre Baliguet and Jean-JacquesPostel.
15.35 B014Repeated Acquisition of a Saudi Arabian 2D LandLine Using Both Light and Heavy Vibrators,Robert W. Jeffery* and Costas G. Macrides.
16.00 B01SComments on a Pure Phase Shift Filter to ImproveVibroseis Correlation,Xiao-Ping Li* and Peter Hubral.
16.25 B016Acquisition of a Bottom Cable 3D Seismic Survey,Offshore Dubai, UAE - a Case History,M.D. Noble*, R.J. Kunemund, H. Sheline,R. Costello and D.J. Monk.
Crustal/Ground Penetrating Radar
Chairman: M. Peltoniemi
09.00 CO01Crustal Structure in the Voring Basin, NorthernNorway, from Three-Component Ocean BottomSeismographs, Rolf Mjelde*, Shuichi Kodaira,Hideki Shimamura, Hajime Shiobara, ToshihikoKanazawa and Eivind W. Berg.
09.25 C002Exploration in the Faeroe-Shetland Basin UsingDensely Spaced Arrays of Ocean BottomSeismometers,Stephen Hughes*, Penny Barton, David Harrisonand Marvin Johnson.
09.50 C003Shallow Reflection Seismic a Tool for MappingGlacial Basin — Two Case Studies fromSwitzerland,C. Signer*, A. Pugin, G. Gorin and W. Wildi.
10.15 C004The Design and Application of Non-Linear Sweepsin Shallow Seismic Exploration,Jan Brouwer*, Vincent Nijhof and Peter Bakker.
10.40 C0053D Georadar Studies of Pleistocene Rhine Gravelsin Northern Switzerland,M. Beres, P. Huggenberger, H. Horstmeyer* andA. Green.
11.05 C006Multifold Advanced GPR Techniques — a CaseHistory from the Aquileia Archaeological Park,M. Pipan *, I. Finetti, P. Galuppo and R. Geletti.
11.30 C007EM Inversion of Ground Penetrating Radar,Umberto Spagnolini.
11.55 C008Localization of Common Graves by Integration ofResistivity-, EM- and GPR-Data,Chr. Oelsner*, F. Donner, B. Forkmann andW. Gothe.
IV
Migration I
Chairman: J.-P. Diet
13.30 C009Migration of Multiple Reflections,A.J. Berkhout* and D.J. Verschuur.
13.55 C010Implicit MZO,Robert Bloor* and Swavek Deregowski.
14.20 C011Migration Velocity Analysis Using a GeneticAlgorithm,Paul Docherty* and Satish Singh.
14.45 C012Parallel Kirchhoff Prestack Depth Migration,Scott Morton.
15.10 C013Imaging of Subsalt Environment,P. Carrion*, P. Comelli* and J. Carcione.
15.35 C014Towards a Quantitative Migration,R.E. P/essix*, G. Chavent, Y.H. De Roeck andB. Marsset.
16.00 C0153D Depth Migration — Two Approaches,Irshad Mufti.
16.25 C016Introduction to Diffraction Imaging, Phil Carrion.
denotes speaker
Tomography
Chairman: P.A.F. Christie
09.00 D001Fault Delineation by Wavefield Inversion ofCross-Borehole Seismic Data,R.G. Pratt*, R.M. Shipp, Z.-M. Song andP.R. Williamson.
09.25 D002A Simple Interpretation of Reflection Tomography,F. Rocca* and U. Spagnolini.
09.50 D0033D Tomographic Inversion of Travel Times inIrregular Grids,Gualtiero Bohm * and Aldo L. Vesnaver.
10.15 D004Some Consideration in Travel Time Tomography inShallow Seismic Survey,E. Cardarelli*, M. Bernabini and R. De Nardis.
10.40 D005Rapid Ray Tracing for Multi-Phase Tomography inComplex 2D/3D Isotropic Media,W.J. Mao*, D. Gubbins and G.W. Stuart.
11.05 D006Localization of Near Surface Inhomogeneities withSurface Waves,Boris A. Dombrowski* and L. Dresen.
11.30 D007Seismic Tomography and Migration without RayTracing,P.O. Ecoublet*, S.C. Singh, G.M. Jackson andC.H. Chapman.
11.55 D008High-Resolution Crosswell Tomography andReflection Imaging — Lodeve Test Site,M. Becquey*, J. Laurent and P. Meynier.
* denotes speaker
Modelling I
Chairman: Ms I. Magnus
13.30 D009AVO Response of Rough Boundaries,R.K. McGill*, J. Neuberg and R.A. Clark.
13.55 D010Thin-Bed AVO Effects,Nils Bakke * and B/ern Ursin.
14.20 D011Tube Wave Modelling by the Finite-DifferencesMethod with Varying Grid Spacing,Joachim Falk*, Ekkehart Tessmer and DirkGajewski.
14.45 DOT 2Finite-Difference Solutions of the 3D EikonalEquation in Spherical Coordinates,Paul J. Fowler.
15.10 D013Seismic Modelling by the Finite-DifferencesMethod with Locally Varying Time Steps,Joachim Falk*, Ekkehart Tessmer and DirkGajewski.
15.35 D014Geometrical-Spreading and Ray-Caustic Decom-position of Elementary Seismic Waves,Peter Hubral, Martin Tygel and Jorg Schleicher*.
16.00 D015Development of Shear Wave Models from P-SConverted Waves,J.X. Liu*, J. Makris, H. Trey, S.R. Wang andH. Mack.
16.25 DOT 6Parameters of Anisotropic for Stratified Mediums— Mathematical Modelling,V.V. Korol*. G.T. Prodajvoda, B.P. Maslov,A.V. Andrievsky and S.D. Babich.
Migration II
Chairman: E. de Bazelaire
09.00 A017Prestack 3D Depth Imaging — a Stepwise Appro-ach for the Interpretor,Ian F. Jones*, J.P. Diet, P. Guillaume andF. Audebert.
09.25 A018Prestack Depth Migration and Sequence Strati-graphy Applied to a Salt Dome Related Oil Field,K. C. Fischer*, D. Franken, R. Marschall andH.-J. Zoch.
09.50 A019Putting 3D Depth Imaging into Production,Uwe Albertin*, Paul J. Fowler, Chris Koeninger,Scott MacKay, Wendell Wiggins and CraigJ. Beasley.
10.15 A020Estimation of Velocity-Depth Models for 3D Struc-tural Targets — a Case Study from the North Sea,Oz Yilmaz*, Jeff Rut/edge, Ottar Sandvin, PaulFarmer and Ron Roberts.
10.40 A021A 3D Prestack Depth Migration Case History witha Velocity Model Update in the Gulf of Suez,Ilkka Noponen* and John Anderson.
11.05 A022Portable Parallel Code for Depth Migration,Arild Buland, Roger So/lie and Jem Amundsen.
11.30 A023Efficient Prestack Kirchhoff Migration UsingWavefront Construction,Norman Ettrich* and Dirk Gajewski.
11.55 A024Imaging Subsalt Structural Targets by 3D Pre-stack Depth Migration,Graham Hodgkiss * and Robert J. Godfrey.
VI
(joint EAEG/EAPG) Interpretation II
Chairman: L. Sonneland
13.30 A025The Next Wave, Thomas L. Davis.
13.55 A026Beneath the Wall — Sub Salt Reservoir Delin-eation in the Southern North Sea,John Colleran*, Paul McCafferty and RobertMurphy.
14.20 A027Building a 3D Velocity/Depth Model from 2D Seis-mic Data — a Case History from the Southern GasBasin,Mark Liftman* and Adam Peg ley.
14.45 A028'Paper Works' — Bringing Workstation Functiona-lity of Paper Seismic Sections,M. Leggett*, C. Prescott, M. Smyth, H. Edwardsand P. Bermingham.
15.10 A029A New Method for the Extraction of SeismicFacies Attributes,T.P.H. Steeghs*, G.G. Drijkoningen, W.E. Peetand J.T. Fokkema.
15.35 A030Total Integration of Seismic Data with Geologyand Borehole Data, Elio Poggiagliolmi.
16.00 A0313D Modelling of Velocity and Density Models forthe Interpretation of Regional and Local GeologicalStructures,J. Makris*, C.H. Henke, D. Harrison andR. Boyce.
16.25 A032Global Seismic Inversion Method for GeologicalInterpretation — A Case Story,Joe/fe Defour*, Kim Gunn Maver, Klaus BoldingRasmussen and Peter Skjellerup.
denotes speaker
VSP
Chairman: R.E. White
09.00 B017Enhancing Seismic Resolution in the Brent Field bya 3D VSP,R.C. Van der Pal, M. Bacon*, and D.W. Pronk.
09.25 B0T8Borehole Seismic Surveys in Horizontal Wells - aCase Study from the North Sea,Kapila Ediriweera*, Nigel Smith and MarkPrudden.
09.50 B019Seisbit: Latest Applications of Seismic whileDrilling Technology,L. Aleotti*, F. Miranda, F. Abramo, F. Poletto,A. Craglietto and P. Corubolo.
10.15 B020Iterative Computation of VSP Rotation Angles,Ketil Hokstad.
10.40 B021Quantitative Ray-Born Elastic Migration of VSP'sData,L. Nico/etis *, M. Mendes, P. Compte andR. Wilmet.
11.05 B022Kernel Processing of r-p Domain RepresentedWalkaway VSP Data, Steen A. Petersen.
11.30 B023Observation of Seismic Anisotropy from VSPMeasurements and Compensation for the Effect inMigration of Seismic Data,Lars E. Berg*, Ingrid Magnus and Jan Vestby.
11.55 B024Predicting Horizontal Velocities from Well Data,M. Andrea*, M.S. Sams, M.H. Worthington andM.S. King.
* denotes speaker
Data Acquisition II
Chairman: M.J.G. Cox
13.30 B025Effective Airgun Source Quality Specifications,Derrick Painter.
13.55 B026Measurement of Air Gun Signatures UsingGun-Mounted Pressure Sensors,Anton Ziolkowski.
14.20 B027An Experimental Comparison of Three DirectMethods of Marine Source Signature Estimation,Robert Laws*, Martin Landre and LasseAmundsen.
14.45 B028On-line Estimation of the Seismic SourceSignature on a Shot-by-Shot Basis,Nils Lunde*, Bob Peebles ans Leon Walker.
15.10 B029Marine 3D Geometry Design for OptimumAcquisition System Response,CD. T. Walker*, A.R. MacKewn, A.J.L. Budd andJ.W. Ryan.
15.35 B030Marine Geometry Design for Optimum 3D SeismicImaging,A.J.L. Budd*, K. Hawkins, A.R. MacKewn andJ. W. Ryan.
16.00 B031Spatial Sampling Characteristics of Wide-TowMarine Acquisition,Craig J. Beasley * and Everett Mobley.
16.25 B032Optimization of Shooting Scheme in Order toReduce Infill on 3D Marine Surveys,Claude Bordenave* and Abdelkader Chaduch.
VII
Processing I
Chairman: S. Spitz
09.00 C017Geometrical DM0 Calibration and SpatialDealiasing,Shuki Ronen*, Ralf Ferber, Richard Bale and DaveNichols.
09.25 C018Amplitude Preservation Nature of OperationalMultiple Attenuation Methods,M.A.C. Tura*. C. Hanitzsch, W.B. Beydoun,S. Jin and B. Fredier.
09.50 C019Cost-Effective Technique of 3D Seismic Pros-pecting Based on Circular Profiling (CP),I.V. Tischenko*, A.K. Suleimanov* andR.G. Berzin.
10.15 C020Estimation of Q from CMP Gathers — Method andCase Histories,Roger A. Clark* and Rahul Dasgupta.
10.40 C021Joint Estimation of AVO and KinematicParameters,Umberto Spagnolini* and Alfredo Mazzotti.
11.05 C022West Shetlands Reconnaissance AVO,R.C. Uden*, R.G. Williams and N. Hutchinson.
11.30 C023Preserved Amplitude Processing with VariableSource or Streamer Depth, Guillaume Cambois.
11.55 C024Effects of Seismic Acquisition Geometry onSeismic Processing — Analysis of the DM0Techniques, Mundy Brink*, Alan Strudley andBengt Larssen.
VIII
Migration III
Chairman: S.M. Deregowski
13.30 C025Kirchhoff Migration and Elastic P-Wave AVOAnalysis Corrected for a Thinly LayeredOverburden, M. Widmaier*, T. Muller, S. Shapiroand P. Hubral.
13.55 C026A V (z) DM0 Developed with the North SeaCentral Graben in Mind,K. Hawkins*, C.C. Cheng and M. Brzostowski.
14.20 C027Diffraction Imaging and Seismic Migration,Philip Carrion.
14.45 C028The Koehler-Newman Principle,R.F. O'Doherty* and M.T. Taner.
15.10 C029Accuracy of Migration Velocity Analysis - TrickyFocusing, Boris R. Zavalishin.
15.35 C030Improved Operator Design for Space-Frequency3D Poststack Depth Migration, Jeff Rut/edge.
16.00 C031Decomposition of One-Way Representations andOne-Way Operators,C.P.A. Wapenaar* and F.J. Dessing.
16.25 C032One-Way Operators in Laterally Varying Media,J.L.T. Grimbergen*, C.P.A. Wapenaar andF.J. Dessing.
* denotes speaker
Modelling 11/Gravity and Magnetics I
Chairman: L. Dresen
09.00 D017Forward Grid Modelling of the Seismic Responseof a Realistic Hydrocarbon Deposit,Jochen Schrader* and Gisa Tessmer.
09.25 DOT 8Applicability of the Gaussian Beam Approach forModelling of Seismic Data in TriangulatedSubsurface Models, Andreas Rueger.
09.50 DOT 9Refraction Seismics — Diving Waves Instead ofHeadwaves, Klaus Helbig.
10.15 D020The Echo of a Fracture,G. U. Haugen * and M. Schoenberg.
10.40 D021High Resolution Gravity Images Using ERS-1Satellite Altimetry — a New Aid to Oil Exploration,Chris Green* and Georges Balmino.
11.05 D022Production and Use of Global Topography Modelsin Gravity Compilations,Robert Daniels* and Chris Green.
11.30 D023A Comparison Between Sea-Surface and Satellite-Derived Gravity Anomalies on the UK ContinentalShelf,I.F. Smith*, Z.K. Dabek and G.W. Jolly.
11.55 D024A Comparative Study of Marine GravityAcquisition and Processing,N. Cooper*, B. Ingram, K. Jenkins, I. Carscadden,R. Swift and P. Bermingham.
denotes speaker
Gravity and Magnetics II
Chairman: H. Granser
13.30 D025Filtering and Optimum Modelling of AZ Data inMetalliferous Mountains — Romania, M.F. Ivan.
13.55 D026Automated Trend Reinforcement of AeromagneticData, Pierre Keating.
14.20 D027Tectonic Framework of the British/Irish Con-tinental Shelf from New Gravity and Aero-magnetic Compilations,M.K. Lee*, I.F. Smith, J.W.F. Edwards,C.P. Royles and P.W. Readman.
14.45 D028Crustal Structure of the South-Central ZimbabweArchaean Craton from Gravity and AeromagneticData, Rubeni T. Ranganai*, C.J. Ebinger, K.A.Whaler and G. W. Stuart.
15.10 D029Potential Field Grids in a Plate Tectonic Context —Animation and Re-Evaluation of ContinentalMargin Evolution,Cliff Prescott*, Chris Green, Patrick Bermingham,Derek Fairhead, Tony Jackson and Richard Davis.
15.35 D030Focused Deconvolution and Geophysical Modelsof Igneous Activity in the Midland Valley ofScotland, Keith Rollin.
16.00 D031Maximization of Geological Information in 3DEuler Deconvolution,Pracha Kuttikul*, Sally Barritt and RamonHanssen.
16.25 D032The Application of Relational Database Tech-nology to Worldwide Potential Field DataIntegration,Steve Spink * and Steve Aspland.
IX
Interpretation III
Chairman: W.E. Brink
09.00 A033Integrated Reservoir Characterization ProcessModel. PA. Tyraskis'. S.C. Burns, T.H. Keith,EL. Nebrija, G.C. Robinson, BE. Toelle,S. Tsingas and R. D. Chimblo.
09.25 A034Integrated Reservoir Characterization, Part 1 —Concepts and Methodology,P.G. Kelamis'. R.D. Chimblo, M.H. Al Fares, N.Akbar and J.J. Kim.
09.60 A03SIntegrated Reservoir Characterization, Part 2 —Poststack Inversion of 3D Seismic Data,M H. Al Fares*. P.G. Kelamis, J.J. Kim, N. Akbarand R D Chimblo.
10.15 A036Integrated Reservoir Characterization, Part 3 —the Petrophysical Basis,N. Akbar*, JJ. Kim, M.H. Al-Fares, P.G. Kelamisand R D. Chimblo.
10.40 A037Reservoir Classification with Seismic Attributes,At tab A/am*, Peter Caragounis, Steve Matsumotoand Clive Hurst.
11 05 A038Forall - The Agip Data System Integration,S Dell'Omo
11 30 A039A Maior Information Technology Breakthrough -the Sonatrach Exploration Data Bank Protect.Ahmed Mecheraoui'. Ugur Algan, Jean-PaulMarbeau and Herve Oheix
11.56 A040Measuring Computer System Effectiveness.Dennis W Nessmr* and John C. Pohlman
(joint EAEG/EAPG) Interpretation IV
Chairman: P. Shannon
13.30 A041The New Salt-Dome Area of Kazakhstan and itsOil and Gas Prospects,N.G. Davydov*, K. Sydykov and V. Sorokin.
13.55 A042Multidisciplinary Compartmentalization Study ofthe Fruitland Coal Gas Reservoir, Cedar Hill Field,San Juan Co, New Mexico, USA,R.D. Benson*, T.L. Davis, E.L. Shuck, R. Heimand S.A. Sonnenberg.
14.20 A043Geological Modelling of the Romanian Off-ShoreReservoirs by Seismic and Well Logging,A/exandru Babskow', Ion Baleanu, DesdemonaPopa, Valehu Platon and Adrian Manescu.
14.45 A044The Integrated Interpretation of Seismic and HighResolution Aeromagnetic Data in Mature Basins —the East Irish Sea Basin,N. Cooper*, J. Gourtier, A. Lewis, A. Fraser andM. MacLean.
15.10 A045The Integration of MT an Seismic Exploration inNW Pakistan,N. Cooper*, R. Swift, R. Ember, A. Orange andJ. Buchanan.
15.35 A046Risk and Relative Importance of UndiscoveredHydrocarbon Resources on the NorwegianContinental Shelf,/. Lerche* and E.S. Kjensmo.
16.00 A047Seismic Stratigraphy of Pre-Upper CretaceousClastics of SE Sirte Basin (Libya).Alt H. Mayouf* and Emin Yanilmaz.
16.25 A048Models Creation as a Part of Porosity andLithology Studies Incorporating Seismic Data,Dimitri N. Krihv.
* denotes speaker
Processing II
Chairman: I.F. Jones
09.00 B033Improved 3D Processing Turnround via AutomaticVelocity Picking.Danu Doicin, Colin Johnson and Neil Hargreaves '
09.26 BO 34Seismic Data Compression with CD ROMArchiving.Charles J.M. Hewlett' and Las Matron
09.50 B03SAn Evaluation of Seismic Data Compression onthe Interpret ability of the Final Product.Mike Hall', Dave Monk and Edmund Reiter
10.15 B036Overview of Data Compression Techniques.Odd A. Stemletn' and Helot Brandsmter
10.40 B037Green's Functions for 3D Prestack DepthMigration.Dave Nichols', Robert J. Godfrey and KjeK Berg
11.06 MMMega Marine 3D Workstation Processing - aCase History.William A Schneider'. Robert N ShurHeff. DavidHays. Michael F Sulkvan and Russell A Kappius
1130 B0 39Determination of Wedge Potnts by High ResolutionHomeomorpnic Imaging Method,B Gelchmsky', A Hanyga. A Berkovitch andS Keydar
1 1 5 5 BO4OIntegral Operators for D«p Moveoul m Two andThree Dimension*. Ateuey Stovm*
denotes speaker
Processing III
Chairman: 0. YHmmx
13.30 B041New Deconvotutton Method Using Higher OrderStatistics.Ssbeut Manser, Moumd Boumehdi end PhilippeJuken
1 3 6 6 B043Analysis of Seismic Multiple Subtraction.Bmthong /hou', Stewart A Gteenhetgh end letriM Mason
14.20 B043Removal of Surf ace Related Diffracted Multiple*Monemed Mednfi', David Johnston end StewLevin
14.45 BO44Iterative Surf ace Related Multiple EliminationD.J. Venchuut* end AJ Betthout
15 10 B04SA Procedure for the Attenuation of SwwmcMultiple*Matthew G Lemont* end Norm f Uren
IS 35 BO463D Attenuat*on of Targeted Multiple* with aPattern Recognition Technique,
Mentn ' end Smton
1600 BO47Multiple Suppr#**»on by OeconvntuiHfn «n ttmTIKI p Oonnwi.Drmtn lotthtenov' and Arnfinn
1§26 B04SZero Pha*e Conv#r**on of Marwte %m%rn»r. Data.finer Cgelend'. John /? Grmnh.Cembon end Set>a»Tmn Soviet
XI
Shear Waves I
Chairman: S. Crampin
09.00 C033Determination of Fracture Parameters Using LocalShear-Wave Conversion,Colin D. MacBeth *, Enru Liu, Mark Boyd and JohnQueen.
09.25 C034Detecting Polarization Changes with Depth inMulticomponent Reflection Surveys,Xiang-Yang Li.
09.50 C035Detection of Polarity Reversals in MulticomponentData,Xin-Wu Zeng* and Colin D. MacBeth.
10.15 C036Integrated Analysis of Multicomponent VSP's andSurface Data for Fracture Reservoir Delineation inthe Paris Basin,Xiang-Yang Li*, Colin D. MacBeth, FredericLefeuvre and Hocine Tabti.
10.40 C037Determination of Subsurface Anisotropy UsingMarine Near-Offset VSP,Mark Higgins * and Colin D. MacBeth.
11.05 C038Inversion of Shear-Wave Splitting Estimates fromNear-Offset VSPS,Steve Home* and Colin D. MacBeth.
11.30 C039Identifying P- and S-Waves Using Artificial NeuralNetwork,Henchang Dai' and Colin D. MacBeth.
11.55 C040Experiences of Three Component SeismicProcessing,Bruno Boiardi*. Marco Serazzi and ClaudioZenucchini.
XII
Shear Waves II
Chairman: J. Fertig
13.30 C041A New Understanding of Shear-Wave Splitting,Stuart Crampin * and Sergey V. Zatsepin.
13.55 C042Modelling the Compliance of In-Situ Rock — aNew Formulation for the Equation of State,Sergey V. Zatsepin* and Stuart Crampin.
14.20 C043Velocity Anisotropy Estimation in a Reservoir,F. Lefeuvre*, R. Arts and A. Hassan.
14.45 C044AVO-Analyses with and without Shear-Waves,H. Tabti* and F. Lefeuvre.
15.10 C045Natural Fracture Characterization Using P-WaveReflection and Multicomponent VSP,C. Richard Bates*, Heloise B. Lynn and MikeLayman.
15.35 C046Exclusion of the Seismic Signal Distortions inOverburden on 3C Data Processing,L.Yu. Brodov* and V.I. Ryjkov.
16.00 C047Traveltime Delay Between Split Shear-Waves asIndicator of Fracture Orientation,Ivan A. Simoes-Filho.
16.25 C0482D Ray-Tracing Modelling of Shear Waves inOBS-Data from the Vering Margin Off NorthernNorway, P. Digranes*, R. Mjelde, H. Shimamura,T. Kanazawa, E. Berg and O. Riise.
* denotes speaker
Electrical
Chairman: B.A. Hobbs
09.00 D033Mapping Voids and Other Man-Made SubsurfaceStructures Using 2D Resistivity ImagingTechnique,M.N.M. Nawawi* and M.H. Loke.
09.25 D034IP Image Profiling - 2D Inversion of Resistivityand Chargeability, Shinichi Iseki.
09.50 D03S3D Resistivity Surveys and Data Inversion,M.H. Loke* and R.D. Barker.
10.15 D036A New FD Method for 3D Resistivity Modellingwith Application to a Phonolithic Body,Klaus Spitzer* and Hans-J. Kumpel.
10.40 D037Laboratory Measurements of Streaming Potentialson Soils at High Pressure, Johan Friborg.
11.05 D038A Borehole Resistivity Array for Single Hole andCross Hole Tomographic Imaging,P.O. Jackson', R.D. Ogilvy, P.I. Meldrum,J.R. Hallam and J.E. Szymanski.
11.30 D039Charged Potential Modelling to Design Surveys forFracture Zone Characterization,f. Heikkinen ' and M Paananen
11.55 D040Induced Electrical Polarization in Humid ClayMaterials.Safwat A. Hussain and Hesham M. El-Kaliouby'.
denotes speaker
Data Acquisition III
Chairman: G. Angeleri
13.30 D041Shallow Seismic Surveying for Neotectomcs.Tamas Bodoky', llona Janvanne Kantor, ZoltanTimar and Tamas Toth.
13.55 D042A Large 2D High Resolution Seismic Survey •Optimum Data Quality as Related to SourceParameters,J.A.C. Meekes', BC Schetfers. HL.H Cox andP.F.M. De Groot
14.20 D043Modern Geophones. Do They Meet the Demandsof Shallow Seismic Measurements7,Peter W. Maxwell', Cees Faber and HansA.K. Edelmann.
14.45 D044Two Experiments Trying to Find the CouplingResponse for Half Gimballed Geophones on Snow.J.P. F/ellanger', L. Dynecius, P. Riste andK. Red.
15.10 0045Optimum XY Distance or Optimum MigrationVelocity. Ewald P. Bruckl.
15.35 D04SInteractive 3D Near-Surface Modelling withExtensive Uphole Programme and RefractionAnalysis, Charles Carvill.
16.00 DO473D Refractor Imaging • Solution to Sand DuneStatics. Rub' Al Khali, Saudi Arabia.Declan N Pntchard' and Scott C Bums.
16.25 D048Spectral Analysis for 3D Residual StaticsApplication Range and Limitations,Femand Baixas.
XIII
Inversion I
Chairman: F.L. Rocca
09 00 €033AVA Analysis in the Biangular Domain.Peter A Vercrw/sse'. Jacob T. Fokkema. Willem£ Peet and Guido Oe Roeck
09 26 £034Constrained Linear AVO Inversion.A J Van Wi/ngaerden' and A J Berkhout
09 60 £035Estimating Shear Wave Velocity Logs Using PSSeismic Inversion.Robert J Ferguson'. Robert R Stewart endHenry C Blend
10 IS £036Inversion in a Nonamooth Background.TJ Moser
10.40 £037A Global Approach to Depth Velocity Deter-mination a High Productivity Tool.Elena Mechmt. Den Kosloff. Zvi Koren end Yeel
11 05 £033Macro Velocity Model Estimation throughModel Based Globally Optimi/ed Depth FocusingAnalysis.B*n Wang'. Kmh Denn and Jeff E Maltoy
11 30 £039The impact of SubSee Seismic.Lars Smrmmtand', Kentetn Red. Gary Mutton andBent T/mth+on
11 SS £040ShMar Property E»t»mntion Us>ng Marine Pressure•nd Additional Ocean Bottom Recordings.H fgef' end A* S<hoenfyerg
XIV
Inversion II
Chairman: H. Jakubowicz
13.30 £041Sensitivity Study of Seismic Reflection/Refraction
Data,Fernando Neves and Satish C. Singh.
13.66 £042Linear Inversion as a First Step in Entropy ofImage Contrast Optimization,TJ Moser', L. Engell Serensen and J. Pajchel.
14.20 £043Accurate Simulation of the Kinematics of DM0 inTravel-Time Inversion,Etienne Robem. Bernard Rayneud and PaulA. Sexton.
14.46 £044Datuming for Target Oriented Inversion in the ff-u/Domain.G. Bemasconi', G. Drufuca and F. Rocca.
15.10 £045Optimization of Antsotropic Velocity Fields,Peter S. Rowbotham' and Gerhard R. Pratt.
16.36 £04eRytov Born Decomposition in 3D ReflectionSetsmics.Manna Biryulma ' and Gennedy Ryihikov.
16.00 £047Total Space Inversion' - Concept and Ex-
periments in Model Space. Paul F M De Groot
16.25 £048A Modelling and Inversion Technique Applied toPore Pressure Evaluation,A G Madatov'. H B Helle end V A Serede
Processing IV
Chairman: R. MmrschaU
0900 4049Practical Solution of the 3D Eikonal Equation cm •
Mmed Grid.
David Kessler and Luis Canatet
09 26 A0MGroundroil Removal Unrig the lm»e<
Transform
M M N Kabtt' and 0 J V
09 50 4051Determinitticel »'v1 Statistical f*»oj»< tior> f illmng
for Signal Pr**l>fvirig N(*»» Att#r»ja1ion
Robert Soub*ra%
10 15 40SJ
Broad Band R*c*<v«c R««poo*« from Dual
Streamer Data.
S C Singh'. R W Hobbt end D ft
10 40 405 JSeismic Derev*rberat»on m t»̂ » XT Domam by
Means of an Edge Detection Algortthm
P Getupoo'. I Ftnttt). « Getettr and W Piper,
11 05 40S4Th« S<jppre»*«on of isolated Beet &catt«r*d
Robert Bkx>r and H*>t Jones
11 30 405Sami
11 SS 40S«
Cnmj)l»i
denotes soea*e»
Borehole Geophysics
Chairman: G. Omnes
09.00 B049Cross Well Seismic Resevoir Characterization — aCase Story, Hans E. Sheline.
09.25 B050Estimation of Seismic Attenuation from HighResolution Crosshole Data,J.P. Neep*, M.H. Worthington andK.A. O'Hara-Dhand.
09.50 B051Crosswell Seismic Processing — Traveltime orWaveform Inversion, Anthony A. Vassiliou.
10.15 B052Preconditioning and Analysis of DifferentWavefield Separation Techniques on CrosswellData,James W. Rector and Jerome I. Mars.
10.40 B053Diffraction of Seismic Wave by Fractures —Modelling and Observations,Enru Liu*, Stuart Crampin and John A. Hudson.
11.05 B0 54Synthetic Seismograms in a Simulated UniwellBorehole Seismic Fluid-Front Imaging Experiment,P.C. Leary.
11.30 B055Measuring Formation Resistivity from Inside ofMetal Casing,K.-M. Strack*, O. Fanini, S.T. Momii,B.Sh. Singer, L.A. Tabarousky and M.B. Vail.
11.55 B056Markov Segmentation and Cleaning of Well Logs,E.J. Robinson and R.E. White.
XVI
Engineering/Mining
Chairman: A. Ofsthus
09.00 C049Method of Pulsed Electromagnetic Emissions (PEE)— Mapping of Slope Failures in the CarpathianMts, V. Vybiral*. I.V. Kuznecov and M.K. Osykin.
09.25 C050Application of Borehole Geophysics for Rock MassCharacterization — a Case History,Stefan Wanstedt* and Per Nilsson.
09.50 C051High Resolution Mapping of Very Shallow SeismicReflectors Using an Efficient Portable VibratorSystem,Ranajit Ghose*, Yoshikazu Matsubara, YasuhiroKaida and Toru Takahashi.
10.15 C052A Generalized First Arrival Traveltime Curve forShallow Refraction Seismic Interpretation,Hamdy H. Seisa.
10.40 C053Roadway Detection by 3D Seismic Survey,T.F. Liu*, A.M. Zhang, B.G. Zhang and H.S. Li.
11.05 C054A High-Resolution 3D Vibroseis Trial Survey of aPotential Nuclear Waste Repository,David K. Smythe*, John M. Holt and MalcolmElstob.
11.30 C055Ultra Acoustic Tomography for Characterizing theExcavation Disturbed Zone, C. Cosma.
11.55 C056Estimation of Love Wave Attenuation Dispersionby Modified Spectral Ratio Method,Xiao-Ping Li.
* denotes speaker
Electromagnetics
Chairman: J. T. Fokkema
09.00 D049The Importance of Correctly Formulating Inductiveand Galvanic Scattering in EM Simulation,Peter W. Walker* and Ross W. Groom.
09.25 D050Cluster Analysis and Digital Filtering of TEM Data,S.L. He/wig*, T. Hanstein and A. Hordt.
09.50 D051Multichannel Transient Electromagnetics for Un-derground Gas Storage Monitoring,A. Hordt*, K. Vozoff and F.M. Neubauer.
10.15 D052Transforming the Transient EM Diffusive Equationto a Seismic-Equivalent Wave Equation,Andrew J.S. Wilson*, Anton M. Zio/kowski, BruceA. Hobbs and David S. Sharrock.
10.40 D053A New Stable Numerical Procedure for Computingthe Q-Transform of TEM Data,Evert C. Slob*, Tarek M. Habashy and CarlosTorres- Verdin.
11.05 DO 541D Numerical Simulating for Transient Shallow-Deep Electromagnetics,A.B. Cheryauka* and S.V. Martakov.
11.30 D055Airborne Electromagnetic Prospecting and Con-ductive Ground - Friends of Foes,R.S. Smith*, R.W. Groom and P.W. Walker.
11.55 D056Geophysical Ground Measurements on GlaciatedTerrain in Queen Maud Land Antarctica,J. Lehtimaki* and T. Ruotoistenmaki.
XVIII
Processing I
Chairman: J. Vallet
P001The Technique of Seismic Data Processing in theSalt-Bearing Sedimentary Basins (Application toPrecaspian Basin, Russia), Karen V. Pairazian.
P003Optimum Multichannel Filtering of Seismic Recordswith Different Spectral Characteristics,Y.K. Tyapkin* and E.I. Shatylo.
P004Karhunen-Loeve and Spectral Matrix Filtering inAttenuating High Amplitude Peg-Leg Multiples,G. Fookes.
P005Survey Evaluation and Design for a 3D SeismicSurvey - a Case History, G. Brown.
P006The Application of the Common Reflecting Element(CRE) Method for Imaging,C6sar Barajas-Olalde* and Wolfgang Rabbet.
P007Filtering Vibroseis Data in the Pre-CorrelationDomain,Shuang Qin* and David K. Smythe.
P008Uses of Land Array Recording of ReflectionProfiling Airgun Shots at Offsets of 10-40 km,David B. Snyder*, Adam Law and Gillian Lindsey.
P009Waveform Based Reflectivity Analysis,Tianyue Hu* and Roy E. White.
P010Interactive Technology of Corrections for Over-burden Inhomogeneities in Seismic Ex-ploration,V.S. Kozirev*, E.K. Korolyov, A.E. Korolyov andA.P. Zhukov.
denotes speaker
Interpretation I
Chairman: J. Val/et
P011Error Analysis for the PDA Tracker in anInterpretation Environment,C.A. Woodham*, W.A. Sandham andT.S. Durrani.
P012The Methods of Estimation of Oil and GasDeposites According to Temperature and PressureData,Kerim M. Kerimov*, Ekhrab K. Kerimov,Gachraman S. Suleymanov, Zakir B. Babayev andHumvat 0. Veliyev.
P013Results of Seismic and Magnetotelluric Meas-urements in the Bohemian Massif, Austria,Kay Aric*, David K. Smythe and Antal Adam.
P014Geophysics and CD-ROM Technology,Markku Peltoniemi.
P015Nature of Stratified Structure and SequenceStratigraphic Interpretation of Seismic Data,Ivan V. Karpenko.
P016Joint Inversion of Seismic and Gravity Data,Xiong Li.
P158The Interpretation of Geological and Seismic Dataof the Ionian and Kruja Tectonic Zones in Albania,Ahmet Collaku.
P1593D Post Stack Depth Migration in the UK SouthernNorth Sea - a Case Study, Ron Roberts.
PI 60Seismic Characterization of Gas-Saturated Layersfor Various Depths in the Pannonian Basin,Istvan Kummer*, Erno Takacs and Antal Papa.
XIX
Shear Waves/Anisotropy
Chairman: J. Vallet
P017Shear Wave VSP in Barbados Ridge AccretionaryComplex, Ocean Drilling Programme Leg 1 56,S. Peacock*, G.K. Westbrook and Leg 156Shipboard Scientific Party.
P018Significance of Thin-Layering in the SeismicFrequency Range,Thilo Mu/ler* and Martin T. Widmaier.
P019Low Frequency Anisotropy of Layered Media,S. Ge/insky* and S.A. Shapiro.
P020Long-Wave Elastic Anisotropy Produced bySpheroidal Inclusions - Effective Elastic Moduliand Bounds,C. Kerner*, M.R. Warner, J. Brittan andR.G. Pratt.
P021Acoustic Anisotropy of Rocks with Non-CircularCracks,Anne Skjaerstein*, E. Fjaer and J.S. Rathore.
P022Changes in the Velocity and Attenuation ofCompressional and Shear Waves in Rocks UnderTriaxial Stresses, D.A. Gunn.
P023Accuracy of Anisotropic Layer ParametersEstimated by Traveltime Analysis,Bjorn E. Rommel.
P024Travel-Time Curve Inversion for TransverselyIsotropic Media with the Help of an EvolutionStrategy, Volker Dirks.
P025Modification of Layer Stripping Technique forStrong Anisotropy,Sergei Gorshkalev* and Wladimir Karsten.
P026S-Waves Study of the Origin of the Bright Spotsin the Transdanubian Central Range,Marianna Tatrai*, Sandor SCile and Geze Varga.
XX
P162The Study of Elastic Symmetry and Anisotropy ofElastic Body Waves for Carbonatic Rocks,S.A. Vyzhva*. G.T. Prodajvoda, V.V. Korol,A.A. Kulickov and P.J. Cholach.
* denotes speaker
Electrical
Chairman: J. Vallet
P027Inversion of Earth Resistivity Data from theMulti-Electrode Rescan System,P. Tsourlos*, J.E. Szymanski, R.D. Ogilvy andP. Jackson.
P028Self Potential Anomalies as Possible Indicators inSearch for Oil and Gas Reservoirs, Alfred Frasheri.
P029Some Particular Aspects of Using Alpha MediaTheory,Paul Georgescu*. Dumitru Ion and loan Gavrila.
P030Electrometric Methods Usage for Geological andGeoecological Problems Solving on Russia's ArcticShelf, M. Holmianskiy.
P031A Study of Non-Linear Techniques for the 2DInversion of Earth Resistivity Data,P. Tsourlos*, J.E. Szymanski and J.K. Dittmer.
P032The Use of AV/I Ratio for Interpretation of VES,Dumitru Ion*, Paul Georgescu and VictorNiculescu.
P033Evaluation of Well Casing Effect on Measurementswith Surface-to-Borehole Electrode Arrays,Y.A. Dashevskii* and S.N. Voronkov.
P034Anisotropy Effects Investigations by ResistivityMethod in Some Inhomogeneous Media,Dmitry K. Bolshakov*, Igor N. Modin, EugeneV. Pen/ago and Vladimir A. Shevnin.
denotes speaker
Acquisition
Chairman: D.P. Milas
P035Comparison Tests of Shallow Seismic ReflectionSources,V.C. Karastathis*, I.F. Louis, G.A. Karantonis andG. V. Apostolopoulos.
P036Source Spectrum Estimation and Charge DepthOptimization,Ryuhei Murayama*, Katsuya Watanabe, KoichiNakagami and Toshimichi Otsuka.
P037Data Aquisition Research with the Delft PhysicalModelling Facility,E.A. Koek*. G. Faber and A.J. Berkhout.
P038Three-Component Ocean Bottom SeismographsUsed in Prospecting Off Northern Norway,Rolf Mjelde*, Eivind W. Berg, Asle Strem, HidekiShimamura, Toshihiko Kanazawa and Jan PetterFjellanger.
P039Experiences with a Super Wide 3D MarineAcquisition in the North Sea,Ivar Sand0* and Tor Veggeland.
P040Monitoring of Harmonic Distortion in VibroseisData by a Pure Phase Shift Filter, Xiao-Ping Li.
P041The Few Simple Rules of Array Techniques for anEffective Groundroll Suppression - A Summary,R.K.A. Schmoller*, R.K. Fruhwirth and A. Kogler.
P042Tow Noise Suppression in Marine Hydrostreamers,J. Luscombe.
XXII
Interpretation II
Chairman: D.P. Milas
P044The Use of Attenuation as a Possibility to GetAdditional Information from Seismic Data,S. Prohl*, K. Deubel and H. Gaertner.
P045Studying Lithology and Fluid Indicators on aSeismic Workstation,A.C. Kemp* and J.W. Gallagher.
P046Methods and Results of Geophysical Inves-tigations in the Southern Seas of Russia,Ya.P. Malovitski*, V.K. Kouznetsov andJu.N. Goumenjuk.
P048Visualization of Hidden Geology with Supportfrom Interpretation of Geophysical Anomalies,Orlando Hernandez.
P049Strategy of Big Depth Stratigraphic TrapsProspecting in the DDD,M.K. Kivshik*. A.P. Tolkunov, V.V. Sirchenko,V.G. Kolisnichenko and G.B. Sergy.
P050A New Interpretational Technique of GeophysicalData - Indication of Rhythmic Disaccordance,Arnold Ye. Kulinkovich.
P051Workstation Interpretation - a Comparison of DataStored at 8 and 16-Bit,G.A. Roberts* and M.J. Hughes.
* denotes speaker
Ground Penetrating Radar/Environment
Chairman: D.P. Mi/as
P052Examination of Concrete Structures Using GPR,V. Mayer*, G. Liebhardt, K.-J. Sandmeier andH. Wilhelm.
P053GPR Imaging with Focused Migration,A.J. Patterson*, J.M. Tealby andN.M. Allinson.
P055Target Location Based on Crosshole RadarMeasurements,Leiv-J. Gelius * and Ingvild Johansen.
P056Geophysical Exploration for Palaeochannels inWestern Australia,V.C. Wilson*, M. Cooper and M. Seman.
P057The Application of High Resolution VibratorSources to Environmental Problems,C. Richard Bates*, Dave Phillips, Bart Hoekstraand Norman Harthill.
denotes speaker
Processing II
Chairman: L. Peardon
P058Solution to the Earth Model Sampling Problem,E. Szaraniec.
P059Impulse Response of State-of-the-Art SeismicProcessing,Mireille Failly-Berthet*, Eric De Bazelaire,Dominique Rousset and Beatrice De Voogd.
P061Phase Quality Data Controle Using the WaveletTransform,Fouzia Asfirane*, Jean-Marc Rodriguez andPhilippe Julien.
P062Processing Experiences with Shallow-SeismicReflection Data,Tamas Toth*, Tamas Bodoky, Laszlo Gili andJozsef Lukacsy.
P063A Method for the Trace Interpretation andExtrapolation by Fourier Transform,Hiroshi Amano.
P064Analysis of Instantaneous Seismic Velocities toPredict the Presence of Tectonic Blocks,Michaele Borodavkin* and Sergei Ptetsov.
P065Predictive Deconvolution Revisited with NeuralNets,Sven Treitel and Robert Essenreiter.
P066Maximum Likelihood Signal Estimation ofComplicated Seismic Record Model, Y.I. Tyapkin.
P067Moveout Analysis for Transversely IsotropicMedia with a Tilted Symmetry Axis, llya Tsvankin.
P068Discrete Inverse Methods for Seismic Waves inHorizontally Layered Media, Virgil Bardan.
XXIV
Borehole and VSP I
Chairman: L. Peardon
P069Further Development of a Borehole SparkerSource,Ben Dyer* and Roy Baria.
P070The 'Shock Gun' - a Revolutionary New SeismicSource Based on 'Shock Tube' Technology,Steve Callan * and Patrick Bermingham.
P071Aperture Compensated Discrete Fourier Transformand Applications,Mauricio D. Sacchi* and Tadeuzs J. Ulrych.
P072Investigation of a Radical Approach to SeismicMapping to Faults,P. Jackson, I.M. Mason, P. Tu and B. Zhou.
P0733D Interpretation of Multi-Offset VSP-Data inCrystalline Rock,P.J. Heikkinen* and C. Cosma.
P074Experiences with Anisotropic Well SeismicMigration - Field Data Example, G.M. Jackson.
P075The Generation of Pseudo VSP Data from LandData,R. Ala'i* and C.P.A. Wapenaar.
* denotes sneaker
Engineering/Mining
Chairman: L. Pear don
P076Integrated Methods for Localization and Charac-terization of Near Surface Structures,R. Misiek*, A. Liebig, B.A. Dombrowski andL. Dresen.
P077Seismic Refraction Investigations of SalairMultimetallic Deposit, V.B. Piip.
P078Prospection of Diversified Nearsurface GeologicalStructures,Miklos Pattantyus-A. *, Mauro Piccolo, ZsoltPronay, Endre Toros and Jozsef Verboci.
P079Detection of Old Mine Cavities,A. Godio*, L.V. Socco and G. Ranieri.
P080Determination of Rock Rippability as Derived fromSeismic Data,S. Sirri Seren * and Nikolaus Horn.
P081Coal Layer Inhomogeneities Investigations byVector Resistivity Measurements in Mines,Eugene V. Pen/ago *, Igor N. Modin and IrinaD. Ignatova.
P082Detecting Near Surface Discontinuities UsingSurface Seismic Waves,Z. Pronay*, L. Hermann, B. Neducza,M. Pattantyus-A. and E. Toros.
denotes speaker
Inversion
Chairman: L. Pear don
P083Offset-Angle Conversion from Depth MigratedSection,Side Jin*, Naamen Keskes and Wafik Beydoun.
P084The Use of Regularized Global ApproximationAlgorithm for 1 D Waveform Inversion,Gennady Ryzhikov*, Marina Biryulina andShmariahu Key da r.
P085How Much Information is There in Seismic Data?,Peter Harris.
P086Construction of Kinematic Seismic Model byHomeomorphic Imaging Method,S. Keydar*, D. Edry, A. Berkovitch andB. Gelchinsky.
P087How to Enhance the Resolution of DiffractedWaves Seismic Imaging, V.B. Zyrianov.
P088On the In-Seam Seismic Inverse Problem -Horizontal and Vertical Inversion of Love SeamWave Data,M. Dobroka*, T. Fancsik and A.A. Amran.
P089AVO Inversion of Troll Field Data,Arild Buland*, Martin Landre, Mona Andersen andTerje Dahl.
P090Robust Joint Inversion of Geoelectric, Refraction-and Surface Wave Seismic Data,M. Kis*, A.A. Amran and M. Dobroka.
P161Reflections on Uniqueness of Refracted WaveTravel-Time Curve Inversion,Eugene K. Lossovsky.
XXV
Migration I
Chairman: B. Ursin
P091Migration of the Large Offset Data andEnvironmental Safety Problem of Seismic inEurope, George D. Lesnoy.
P092Recursive Cell Raytracing,J. Pajchel* and T.J. Moser.
P093Kinematic Operators in Seismic ReflectionImaging,Frank Liptow* and Peter Hubral.
P0943D Recursive Extrapolation Operators - aComparison,J.W. Thorbecke* and A.J. Berkhout.
P0953D Migration of Areal VSP Data from TengizOilfield, Sergey A. Birdus.
P096Modelling and Migration of P-SV Seismic DataConsidering 2D Isotropic and TransverselyIsotropic Media,M.A. Barsottelli Botelho* and F.S.M. Dos Santos.
P098Maslov Migration of Critical Angle Data,P. Hague* and S.C. Singh.
XXVI
Borehole and VSP II
Chairman: B. Ursin
P099Effects of Fine Layering in the Near Borehole Wallon a Tube Wave Propagation,P. Krauklis*, L. Krauklis and N. Smirnov.
P100Lithological Information from Borehole FullWavetrain Analysis,H. Schu'tt*, R. Ernst and L. Engelhard.
P102Waveform Inversion of Seismic P-Wave At-tenuation from Borehole Compressional WaveLogs, X. Tang and K.-M. Strack.
P103Relationships Between Velocities, Attenuationsand Density of Crystalline Rocks in the KTB Area,Xiao-Ping Li and Sandra Richwalski*.
P104Crosshole Seismic Reflection Imaging ofAnisotropic Media, Peter S. Rowbotham.
P105Geophysical Methods and Tools for BoreholeMeasurements Oriented to HydroecologicalApplications,K. Buckup* and G.N. Sideris.
* denotes speaker
Electromagnetics
Chairman: B. Ursin
P106Application of CSAMT/MT to HydrocarbonExploration in Northern Germany,Gary W. McNeice*, Nickolay Golubev and UlrichMatzander.
P107Transient Dielectric Logging (Theoretical andNumerical Statements),S.V. Martakov* andA.B. Cheryauka.
P108Magnetotelluric Survey in the Carpathians(Southern Poland),Juliusz Miecznik* and Wojciech Klityriski.
P109Analog-Scale Modelling Transient ElectromagneticField in Dispersive Media,F.M. Kamenetsky* and P.V. Novikov.
P110Can Measurements of Spatial Gradients ImproveEM Resolution?,Daniel Sattel* and James Macnae.
PillAirborne Geotem®/Magnetic Mapping of Hydro-carbon Alteration Plumes - USA,J.D. Rowe*. R.S. Smith, D.D. Beattie andR.K. Warren.
P112Some Results of Marine MagnetovariationalObservations,L. Abramova* and Yu. Abramov.
P113Shelf Hydrocarbons Deposits Estimation Ac-cording to Direct and Undirect Signs,YuJ. Matveev*, E.D. Lisitsin, B.S. Lokshin andM.L. Verba.
P114The Possibilities of Telluric and MagnetotelluricMethods in Deep Structural Investigation,J. Csorgei*, L. Nemesi, S. Kovacsvolgyi,A. Milankovich and G. Varga.
P115Evaluation of Engineering-Geological ProcessesDevelopment by NPEMFE Method,I.V. Kuznetsov*, M.K. Osykin and A.V. Lushchik.
* denotes speaker
Gravity and Magnetics 1/Crustal
Chairman: B. Ursin
P116Aeromagnetic Mapping and Interpretation of MaficDykes in Eastern and Southern Africa,M.S. Mubu* and C.V. Reeves.
P117Application of Magnetics to Basin Structures,D.E. Learn an.
P118An Integrated Geophysical Study of the MurzukBasin (Southwestern Libya),A.S. Sahil*, C.J. Ebinger and R.A. Clark.
P119Geological Setting and Geodynamics in WesternBohemia Based on Gravity Survey,J. Svancara*, J. Mrlina, J. Sramek andF. Hubatka.
P120Upper Mantle Reflector Structure beneath theScottish Caledonides,J.H. McBride*, D.B. Snyder, R.W. England andR.W. Hobbs.
PI 21Crustal Transect Across the Lofoten Margin,Northern Norway, Obtained by Use of OceanBottom Seismographs,S. Kodaira*, R. Mjelde, M.A. Sellevoll,H.B. Hirschleber, H. Shimamura and E.W. Berg.
P122Wavelet Transform Analysis of Heterogeneitiesfrom Sonic Measurements,Xiao-Ping Li and Johannes Haury*.
P123Evidences on the Deformation of the LithosphereDuring Cenozoic Rifting in the Upper RhinegrabenSystem,Gunther Mayer*, Helmut Echtler and EwaldLiischen.
XXVII
Migration II
Chairman: S. Treitel
P124Prestack Migration by Equivalent Offsets andCommon Scatter Point (CSP) Gathers,John C. Bancroft*, Hugh D. Geiger, DarrenFoltinek and Shaowu Wang.
P125A Multi-Azimuth Stacking Procedure for 3D LandData,M.M.N. Kabir*, L. Faqi and D.J. Verschuur.
P127Depth Migration by Polynomial Expansion,Ekkehart Tessmer*, Dan Kosloff and HillelTal-Ezer.
XXVIII
Tomography/Rock Physics
Chairman: S. Treitel
P1283D Ray Tracing by the Fermat's Principle inIrregular Grids,Gualtiero Bohm *, Gianni Madrussani and AldoL. Vesnaver.
P129Gibbs Statistics and Diffusion Equation inGeotomography, Philip Carrion.
P130Simultaneous Velocity and Interface Inversion of aCombined Normal-Incidence and Wide-AngleDataset,M. McCaughey* and S.C. Singh.
P131The Sampling Problem in Seismic Tomography,Aldo L. Vesnaver* and Gualtiero Bohm.
P132Deviated-Borehole Diffraction Tomography in theFrequency-Space Domain, Thomas Ruhl.
P133Dry Rock Model Prediction to Improve Confidencein a 3D SEM Petrophysical Distribution,Kahina Zizi.
P134Spectral Properties of Coupling Losses - aLaboratory Study, A.P. Shatilo.
P135Modelling Elastic Wave Propagation in SiliciclasticRocks,Shiyu Xu* and Roy E. White.
P136Geomechanical Modelling of Scenarios forDifferent Geological Settings with the FiniteElement Structural Mechanics Package DIANA,Wouter Zijl*, Jan Lutgert and Ipo Ritsema.
* denotes speaker
Gravity and Magnetics II
Chairman: S. Treitel
P138Gravity and Magnetic Methods in MineralExploration, Bathurst Mining Camp, NewBrunswick, Canada, M.D. Thomas.
P139Gravity Modelling - a Contribution to theKnowledge of Madrid Basin Structure (Spain),J.F. Bergamin* and R. Tejero.
P140An Integrated Geophysical Interpretation ofCentral Iberian Peninsula (Spain),J.F. Bergamin*, R. Tejero, D. Gomez andF. Sanchez-Serrano.
P141Gravity Anomalies Due to Overburden, BedrockWeathering and Fracture Zones, Seppo Elo.
PI 42A Comparison of Homomorphic and WienerDeconvolution in the Magnetic Prospecting,G.N. Tsokas.
PI 43Monitoring of Geomechanical and GeodynamicalProcesses - a Non-Traditional Application ofGravimetry, J. Mrlina.
P144Combined Study of Euler's Homogeneity Equationfor Gravity and Magnetic Field,D. Huang*, D. Gubbins, R.A. Clark andK.A. Whaler.
P145Geomaster - a Program for Interactive 3D GravityInversion and Forward Modelling,Christian H. Henke * and Jannis Makris.
P146Interpreting Potential-Field Data with HorizontalGradient Vector (HGV) Mapping - Examples fromAlberta, Canada,Darran J. Edwards*, R. James Brown and HenryV. Lyatsky.
* denotes speaker
Modelling
Chairman: S. Treitel
P1473D Multivalued Travel Time and Amplitude Maps,Paulo Sergio Lucio*, Gilles Lambard and AndrzesHanyga.
P148Acoustic Modelling in Biot Media,Marco A. Barsottelli Botelho* and VincentePinheiro.
P150Dynamic Velocity Shift of Waves in 2D and 3DRandom Media,R. Schwarz* and S.A. Shapiro.
P151Approximations for Far Ray-Tracing throughLayered Anisotropic Media with VelocityGradients,P.R. Williamson* and B. Raynaud.
P152Numerical Errors Due to Non-Aligned Interfaces inCoarse-Grid Modelling Schemes,Rune Mittet* and Arild Buland.
P1533D Multi-Offset Seismic Modelling Based on WellLogs and Fluid Fill Substitution,Paul De Beukelaar*, Benott Paternoster, NathalieLucet and Vincent Richard.
P154Tool for 3D-Mathematical Modelling in CSD-Technique,V.P. Kovaliev* and V.I. Yeremin.
P155Approximate Reflectivity and Transmissivity forVertically Inhomogeneous Elastic Media,S.A. Shapiro*, P. Hubral and B. Ursin.
PI 56A Comparative Study of Seismic ModellingAlgorithms,loannis Louis*, Antonis P. Vafidis, GeorgeA. Karantonis and Aldo L. Vesnaver.
P157"Fuzzy Geomodel" Expert System,E.V. Kovalevsky* and V.I. Kharchenko.
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