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Abstracts

Here you find all published abracts ordered into years and conferences, workshops and meetings. If you are a sponsor you will find all new and unpublished abstracts in the Sponsors Only section.

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2006

76th SEG Meeting, October 2006, New Orleans

  • Characterizing volcanic gas reservoirs using PP and PS seismic data: case study (PDF:633KB)
    X.Y. Li, H.C.Dai, Sun, X. and Jiang, P.
     
  • Fracture detection using 3D P-wave seismic data: An integrated study from Southwest China (PDF:555KB)
    Qian, Z., Li, X.Y., E.Liu, Wang, S. and Wang, S.
     
  • Seismic attenuation in rocks saturated with multi-phase fluids (PDF:193KB)
    Chapman, M. and Liu, E.
     
  • Estimating anisotropic parameters from PS-converted wave data: a case study (PDF:1241KB)
    Wang, L., Dai, H., Li, X.Y and Sun, X.
     
  • Applications of spectral decomposition for AVO analysis in the west of Shetland (PDF:631KB)
    Liu, E., Chapman, M., Loizou, N. and Li, X.Y.
     
  • Kinematic and dynamic anisotropy: implication of seismic fracture characterizations (PDF:633KB)
    Liu, E., Chapman, M., Li, X.Y., Queen, J.H. and Lynn, H.
     
  • Azimuthal multi-attribute analysis for fracture properties in time-lapse VSP data (PDF:291KB)
    Varela, I., Liu, E. and Chapman, M.
     
  • 68th EAGE Meeting, June 2006, Vienna

  • Anisotropic azimuthal attenuation as an indicator of fracture properties, a study on walkaround VSP data (PDF)
    Isabel Varela, Mosab Nasser, Mark Chapman and Enru Liu
     
  • Multicomponent pp and ps seismic response from volcanic gas reservoirs (PDF)
    Xiang-Yang Li , Xianyi Sun, Henchange Dai, Jiangyun Pei and Shumin Chen
     
  • Use of spectral decomposition to detect dispersion anomalies associated with gas saturation. (PDF)
    M. Chapman, J. Zhang, E. Odebeatu, E. Liu and X.Y. Li.
     
  • The two-parameter approximation to seismic reflection traveltimes (PDF)
    Xiucheng Wei, Xiang-Yang Li, Yang Liu and David Booth
     
  • Fracture Characterization at Clair: Analysis of P-wave azimuthal anisotropy in 2D & 3D Ocean-Bottom Data (PDF)
    Zhongping Qian , Xiang-Yang Li, Enru Liu & Rodney Johnston
     
  • Integrated Study Of Fracture Characterization Using 3D P-Wave Seismic Data In Southwest China (PDF)
    Xiang-Yang Li, Shangxu Wang, Enru Liu, Yalin Li and Yueming Yang
     
  • Analysis of converted-wave splitting in volcanic rocks: a case study from northeast China (PDF)
    Lifeng Wang, Xiang-Yang Li and Xianyi Sun
     
  • Comparison of two physical modeling studies of 3D P-wave fracture detection (PDF)
    Zhongping Qian, Xiang-Yang Li and Shangxu Wang
     
  • AVO is not Achilles Heel but a valuable tool for successful exploration west of Shetland Nick Loizou, Enru Liu and Mark Chapman
     
  • AVO analyses from four wells in the west of Shetland: spectral decomposition Enru Liu, Mark Chapman, Nick Loizou and Xiangyang Li
     
  • PP and PS joint inversion a case study from West Africa (PDF)
    Jinghua Zhang and Fabio Mancini
     
  • Fracture-induced frequency-dependent anisotropy, yibal field, oman. (PDF)
    A. Al-Anboori1, M. Kendall and M. Chapman
     
  • 2005

    75th SEG Meeting, November 2005, Houston

  • Accuracy of a simplified moveout formula for PS converted-waves in multi-layered media (PDF:381KB)
    H.C. Dai and X.Y. Li
     
  • The effect of abnormally high reservoir attenuation on AVO analysis (PDF:235KB)
    M. Chapman and E. Liu
     
  • Observation and modelling of anisotropic attenuation in VSP data (PDF:260KB)
    S. Maultzsch, M. Chapman, E.Liu and X.Y. Li
     
  • Full-wave long offset seismic imaging and velocity analysis with gravity and well constrains - case study from NW Corrib, Offshore Ireland (PDF:503KB)
    A. Droujinine, S. Buckner and R. Cameron
     
  • 67th EAGE Meeting, June, 2005, Madrid

  • Anisotropic processing and modelling of 4C seismic data: a case study (PDF:278KB)
    B. Traub and X.Y. Li
     
  • AVO fluid discrimination with weak impedance contrast - a case study from Ordos basin (PDF:264KB)
    J. Zhang and X.Y. Li
     
  • Modelling the effect of frequency dependent anisotropy on azimuthal AVO analysis (PDF:1.14MB)
    M. Chapman, E. Liu and X.Y. Li
     
  • Analysis of attenuation anisotropy in multi-azimuth VSP data from the Clair field (PDF:427KB)
    S. Maultzsch, M. Chapman, E. Liu and X.Y. Li
     
  • Azimuthal variations of AVO attributes of PP and PS converted waves in anisotropic media (PDF:328KB)
    E. Liu and M. Chapman
     
  • Elastic impedance: comparison of accuracies of three approximations (PDF:296KB)
    J. Yue and E. Liu
     
  • The application of equivalent velocity in multicomponent VSP data processing (PDF:1.097MB)
    X. Wei and X.Y. Li
     
  • A simplified moveout formula for P-, S- and converted-waves in mult-layered media (PDF:382KB)
    H. Dai and X.Y. Li
     
  • Analysis of PSTM C-wave results from three 2D 4C lines acquired offshore West Africa F. Mancini, P. Williamson, X.Y. Li and H. Dai
     
  • Efficient traveltime computations for multi-wave-type anisotropic PSDM (PDF:348KB)
    A. Droujinine and P. Zhao
     
  • Inversion of high-resolution 3D full tensor gradiometry (FTG) data for reservoir monitoring (PDF:707KB)
    A. Vasilevsky, A. Droujinine and J.R. Russ
     
  • Passive source decouple imaging (PDF:787KB)
    A. Droujinine and E. Rothert
     
  • Multi-wave-type sub-basalt images (PDF:805KB)
    A. Droujinine, S. Buckner, R. Cameron, J. Pajchel and K. Hitchen
     
  • 2004

    74th SEG, 10-15 Oct 2004, Denver, CO

  • Frequency dependent azimuthal variations in reflections from a fractured layer (PDF:142KB)
    M. Chapman and E. Liu
     
  • 3D pre-stack Kichhoff time migration of PS-waves and migration velocity model building (PDF:4.27MB)
    H. Dai, X.Y. Li and P. Conway
     
  • Converted-wave imaging in anisotropic media: an overview (PDF:1.14MB)
    X.Y. Li, H. Dai and F. Mancini
     
  • Multi-mode pre-processing of long-offset marine streamer data - Faeroes-Shetland Basin (PDF:1.057MB)
    A. Druzhinin and X.Y. Li
     
  • 66th Annual International EAGE Meeting, Paris, France, June 2004

  • THE IMPACT OF DATA PRE-PROCESSING ON SUB-BASALT SEISMIC IMAGING (PDF:556KB)
    A. Druzhinin, R. W. Hobbs and X-Y. Li
     
  • EFFICIENT 2D FD-K MODELING IN HETEROGENEOUS VTI MEDIA (PDF:658KB)
    V.N. Martynov and A. Druzhinin
     
  • Thin-layered basalt: implications for seismic imaging (PDF:458KB)
    A. Dobson, X.-Y. Li and A. Ziolkowski
     
  • C-wave anisotropic imaging using PSTM: a case example from the North Sea (PDF:603KB)
    F. Mancini, X.-Y. Li, A. Ziolkowski, H. Dai and T. Pointer
     
  • Can we constrain a VTI model by joint non-hyperbolic moveout inversion of P- and Converted-wave data ? (PDF:898KB)
    B. Traub and X.-Y. Li
     
  • AN APPROXIMATION OF THE CONVERSION-POINT OF PS CONVERTED WAVES BASED ON NEWTONS METHOD (PDF:246KB)
    H. Dai
     
  • P-WAVE AND CONVERTED WAVE EVENT CORRELATION BY CONVERTED WAVE MOVEOUT ANALYSIS (PDF:919KB)
    J. Zhang and X.-Y. Li
     
  • Theories for fluid substitution in fractured carbonate reservoirs (PDF:718KB)
    M. Chapman and E. Liu
  • 2003

    73nd Annual International SEG Meeting, Dallas, Texas, 6-11 Oct 2002

    • Some estimates of the squirt-flow frequency (PDF:170KB)
      Mark Chapman*, Sonja Maultzsch and Enru Liu
       
    • The frequency dependent azimuthal AVO response of fractured rock (PDF:181KB)
      Mark Chapman* and Enru Liu
       
    • Interactive estimation of anisotropic parameters and velocities from PS converted waves (PDF:407KB)
      Hengchang Dai
       
    • Modelling long-offset seismic waves for sub-basalt imaging (PDF:4.9MB)
      Andrew Dobson*, Derek Ritchie, Enru Liu, Xiang-Yang Li and Anton Ziolkowski
       
    • Data-driven multi-mode interval velocity analysis in terms of P-Q wavefront attributes (PDF:485KB)
      Alexander Druzhinin* and Xiang-Yang Li
       
    • Multi-mode wavepath depth imaging for the SEG/EAGE salt model (PDF:454KB)
      Alexander Druzhinin*, Leigh House and Jan Pajchel
       
    • Processing low-frequency data from the Faroe-Shetland Basin for sub-basalt imaging (PDF:4.2MB)
      Peter Hanssen*, Robert Gatliff, Xiang-Yang Li, Anton Ziolkowski, Helmut Jakubowicz, Gary Hampson,
       
    • Converted-wave moveout analysis revisited: the search for a standard approach (PDF:623KB)
      Xiang-Yang Li
       
    • Frequency-dependent anisotropy: effects of multi-fracture sets on shear-wave polarizations (PDF:247KB)
      Enru Liu*, Mark Chapman, Sonja Maultzsch, Xiang-Yang Li, John H. Queen and Zhongjie Zhang
       
    • Modeling attenuation anisotropy and its interpretation in terms of fracture properties (PDF:165KB)
      Sonja Maultzsch*, Enru Liu and Mark Chapman
       
    • Multi-scale fracture characterization using fractal frequency-power-law attenuation models (PDF:457KB)
      Vladimir Rok, Alexander Druzhinin*, Russ Evans and Xiang-Yang Li
       
    • Characterisation of near surface anisotropy using P- and converted wave data (PDF:2.1MB)
      Bärbel Traub* and Xiang-Yand Li
       
    • Feasibility of FTG reservoir monitoring (PDF:594KB)
      Alexander Vasilevsky, Alexander Druzhinin*, Russ Evans, Xiang-Yang Li and Colm Murphy
       
    • Numerical study of scattering attenuation in fractured media: the effects of scalelength on multiple scattering attenuation (PDF:357KB)
      Serafeim Vlastos*, C. Narteau, Enru Liu and Ian Main
       
    • Dual simulations of fluid flow and seismic wave propagation in a fractured network: Effects of changes in pore pressure on signature of seismic waves (PDF:342KB)
      Serafeim Vlastos*, Michael Schoenberg, B. Maillot, Ian Main, Enru Liu and Xiang-Yang Li
       
    • Fracture detection using 3D seismic data: A physical modeling study (PDF:345KB)
      Shangxu Wang and Xiang-Yang Li*
       
    • Case study of using converted PS-waves to image gas reservoirs in the Ordos Basin, China (PDF:364KB)
      Xiuchen Wei, Xiang-Yang Li*, Ou Yang and Shi Songqun
    Circulated for information
    • Constraining models of fractured reservoirs using seismic anisotropy maps, for improved reservoir performance and prediction (PDF:758KB)
      Steve Rogers*, Colin MacBeth, Enru Liu and Erika Angerer

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    65th Annual International EAGE Meeting, Stavanger, Norway, 2-5 June 2003

    • Amplitude-preserving decoupled prestack depth migration (PDF:1.2MB)
      A. Druzhinin
       
    • Frequency-Power-Law attenuation - Scattering by fractal inclusions (PDF:476KB)
      V. Rok, A. Druzhinin, J. R. Evans and X.-Y. Li
       
    • Feasibility of inverting 3-D FTG data for reservoir monitoring (PDF:668KB)
      A. Vasilevsky, A. Druzhinin, J. R. Evans, C. A. Murphy and X.-Y. Li
       
    • Converted-wave velocity analysis in terms of P-Q wavefront attributes (PDF:697KB)
      A. Druzhinin and X.-Y. Li
       
    • Frequency-dependent anisotropy: effects of multi-fracture sets on shear-wave polarizations (PDF:58KB)
      E. Liu, M. Chapman, J. H. Queen, S. Maultzsch and X.-Y. Li
       
    • Wave decomposition for poroelastic media and algorithm for reflection coefficients (PDF:242KB; DOC:512KB)
      F. Borocin, S. Zatsepin and D. Taylor
       
    • Migration Velocity Analysis of C-Wave using INMO-CIP Gathers of PKTM: A Case Study From the Gulf of Mexico (PDF:262KB)
      H. Dai and X.-Y. Li
       
    • Effects of binning velocity ratios on C-wave imaging in the presence of dips (PDF:450KB; DOC:1.7MB)
      F. Mancini, X.-Y. Li, A. Ziolkowski and T. Pointer
       
    • Estimating the squirt-flow frequency (PDF:252KB; DOC:170KB)
      M. Chapman, S. Maultzsch and E. Liu
       
    • Shear-wave splitting analysis of a 3D VSP from the San Juan Basin (PDF:337KB; DOC:233KB)
      S. Maultzsch, E. Liu, X.-Y.Li, T. M. Daley, J. H. Queen and D. Cox
       
    • The potential of estimating fracture sizes from the frequency dependence of anisotropy (PDF:360KB; DOC:303KB)
      S. Maultzsch, M. Chapman and E. Liu
       
    • An effective medium theory for anisotropic cracked poroelastic media (PDF:34KB)
      S. R. Tod, J. A. Hudson and E. Liu
       
    • Numerical study of scattering attenuation in fractured media: frequency dependence and effects of characteristic length scales (PDF:347KB)
      S. Vlastos, C. Narteau, E. Liu and I. Main
       
    • Fluid flow simulation in a fractured medium: effects of pore pressure changes on seismic waves (PDF:354KB)
      S. Vlastos, M. Schoenberg, B. Maillot, I. Main, E. Liu and X.-Y. Li
       
    • Converted-wave traveltime equations in layered anisotropic media: An overview (PDF:348KB; DOC:280KB)
      X.-Y. LI, J. Yuan and R. Bale

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    2002

    72nd Annual International SEG Meeting, Salt Lake City, Utah, 6-11 Oct 2002

    • Frequency dependent anisotropy with a multi-scale equant porosity model. (PDF:42KB)
      Mark Chapman and Enru Liu
       
    • Parallel Processing of Prestack Kirchhoff Time Migration on a Beowulf Cluster (PDF:346KB)
      Hengchang Dai
       
    • A practical approach to update the migration velocity model for PS converted waves (PDF:254KB)
      Hengchang Dai and Xiang-Yang Li
       
    • Fracture detection using land 3D seismic data from the Yellow-River Delta, China (PDF:2.1MB)
      Xiang-Yang Li, Yi-Jie Liu, Enru Liu, Feng Shen, Li Qi and Qu Shouli
       
    • Analysis of frequency-dependent seismic anisotropy from a multicomponent VSP (PDF:69KB)
      Enru Liu, John H. Queen, Xiang Yang Li, Mark Chapman, Heloise B. Lynn and Evgeni M. Chesnokov
       
    • Interpreting velocity ratios from 4C seismic data and well logs in the presence of gas and anisotropy (PDF:1.4MB)
      Fabio Mancini, Xiang-Yang Li, Anton Ziolkowski and Tim Pointer
       
    • Modelling frequency-dependent anisotropy due to fluid flow in bed limited cracks (PDF:69KB)
      Simon R. Tod and John A. Hudson
       
    • The study of static correction in desert and loose terrain (PDF:1.4MB)
      Xiucheng Wei and Yang Liu
       
    • Anisotropic parameter estimation from conversion point offsets (PDF:700KB) (MS-Doc:647KB)
      Jerry Yuan and Xiang-Yang Li
       

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    64th Annual International EAGE Meeting, Florence, Italy, 27-30 May 2002

    • Integrated analysis of seismic response of gas reservoirs in Ordos Basin (MS-Word DOC:952KB)
      Li, X.-Y. et al.
       
    • Static correction in dersert and loose terrains (PDF:317KB)
      Wei, X.-C., Liu, Y and Li, X.-Y.
       
    • Sensitivity analysis of migration velocities for PS converted-wave (C-wave) imaging (MS-WORD DOC:652KB)
      Dai, H. and Li, X.-Y.
       
    • Optimizing the performance a parallel prestack Kirchhoff time migration on a Beowulf Cluster (MS-WORD DOC:575KB)
      Dai, H.
       
    • Sensitivity of anisotropic parameter estimation from 4C data: Modelling and a case study (MS-WORD DOC:730KB)
      Traub, B. and Li, X.-Y.
       
    • Effects of lateral heterogeneity in basalt on seismic waves: a modelling study using the boundary element method (MS-WORD DOC:4.7MB)
      Dobson, A.,Li, X.-Y., Ziolkowski, A. and Liu, E.
       
    • Frequency dependent anisotropy due to meso-scale fractures with equant porosity (MS-WORD DOC:261KB)
      Chapman, M.
       
    • Effects of an HTI overburden on P-wave amplitudes (MS-WORD DOC:199KB)
      Maultzsch, S. et al.
       
    • Numerical study of seismic wave propagation in rock with scale length (size) and spatial distribution (MS-WORD DOC:412KB)
      Vlastos, S., Liu, E., Li, X.-Y., Main, I.
       
    • Modelling Fluid flow in media containing bed limited cracks (MS-WORD DOC:1.0MB)
      Tod, S., Hudson, J.A. and Liu, E.
       
    • Wave decomposition for poroelastic media and algorithm for reflection coefficients (MS-WORD DOC:717KB)
      Borocin, F., Taylor, D. and Zatsepin, S.
       
    • Rapid image-ray inverse data mapping without using an interval velocity model (PDF:190KB)
      Druzhinin, A.
       
    Circulated for information
    • C-wave anisotropic parameter estimation from conversion point (MS-WORD DOC:199KB)
      Yuan, J., Li, X.-Y. and Zhu, X.
       
    • Factorized ray tracing in viscoporoelastic TI media (PDF:72KB)
      Druzhinin, A.
       
    • Planning, acquiring and processing a walkaround VSP for fracture induced anisotropy (MS-WORD DOC:626KB)
      Horne, S., Thomsen, C., Morgan, R., Walsh, J., Hyde, J. and Liu, E.
       
    • Low Frequency Sub-Basalt Imaging (MS-WORD DOC:3.4MB)
      Ziolkowski, A., Hanssen, P., Gatliff, R., Li, X.-Y., Jakubowicz, H. and Hampson, G.
       

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    10th International workshop of seismic anisotropy, Tutzing, Germany, 14-19 April 2002

    • Converted-wave seismology in anisotropic media revisited Part I: Theory (pdf:88kB)
      Xiang-Yang Li and Jerry Yuan
       
    • Converted-wave seismology in anisotropic media revisited Part II: Application (pdf:80kB)
      Xiang-Yang Li and Jerry Yuan
       
    • Numerical simulation of seismic wave propagation in media with discrete fractures (pdf:55kB)
      Serafeim Vlastos, Enru Liu, Xiang-Yang Li and Ian Main
       
    • Shear-wave splitting in a critical crust: III - anisotropy in crustal relaxation after stress release (pdf:69kB)
      Stuart Crampin and Sebastien Chastin
       
    • C-wave prestack depth migration and model building with moveout analysis in inhomogeneous, anisotropic media (pdf:321kB)
      Alexander Druzhinin, Xiang-Yang Li and Heng-Chang Dai
       
    • Converted-wave anisotropic parameter estimation from conversion point (pdf:113kB)
      Jerry Yuan and Xiang-Yang Li
       
    • Modelling a cracked porous medium (pdf:29kB)
      Simon Tod and John Hudson
       
    • Analysis of frequency-dependent seismic anisotropy from a multicomponent VSP (pdf:76kB)
      Enru Liu, John H. Queen, Xiang Yang Li, Mark Chapman, Heloise B. Lynn and Evgeni M. Chesnokov
       
    • Frequency dependent anisotropy due to multi-scale fluid flow in porous rock with aligned fractures (pdf:100kB)
      Mark Chapman, Sonja Maultzsch, Enru Liu and Xiang-Yang Li
       
    • Anisotropy due to bed-limited cracks (pdf:30kB)
      Simon Tod and John Hudson
       

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    Sub-basalt imaging: Exploiting the full wavefield Cambridge, England, 9-11 April 2002

    • Sub-basalt zero-offset imaging without using an interval velocity (pdf:10MB)
      Alexander Druzhinin
       
    • Optimising acquisition geometries for sub-basalt imaging: a modelling study (pdf:7.1MB)
      Peter Hanssen, Xiang-Yang Li and Anton Ziolkowski
       
    Circulated for information:
    • Use of low frequencies for sub-basalt imaging (pdf:187kB)
      Anton Ziolkowski, Peter Hanssen, Robert Gatliff, Xiang-Yang Li, Helmit Jakubowicz and Gary Hampson
       

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    2001

    71st Annual International SEG Meeting, San Antonio, Texas, USA, 9 - 14 September 2001

    • The dynamic fluid substitution problem (pdf:86kB)
      Mark Chapman
       
    • Anisotropy migration and model building for 4C seismic data: A case study from Alba (pdf:1.7MB)
      Hengchang Dai and Xiang-Yang Li
       
    • Time-Lapse Crosswell Tomography in the Athabasca Tar Sands (pdf:570KB)
      Anna Droujinina, Colin MacBeth and Patrick Corbett
       
    • Accuracy and sensitivity analysis for estimating anisotropic parameter from 4C seismic data (pdf:591kB)
      Xiang-Yang Li, and Jianxin Yuan
       
    • Converted-wave traveltime equations in layered anisotropy media: An overview (pdf:214kB)
      Xiang-Yang Li, Jianxin Yuan and Richard Bale
       
    • Effects of fluid saturation and pore pressure on seismic anisotropy (pdf:268kB)
      Enru Liu and Xiang-Yang Li
       
    • Characterization of azimuthal anisotropy in the presence of thin layers using P-waves (pdf:480kB)
      Yi-Jie Liu, Anton Ziokovski, Enru Liu and Xiang-Yang Li
       
    • Estimation of reservoir parameters using an anisotropic dual porosity model (pdf:678kB)
      Yan Jun, Enru Liu and Xiang-Yang Li
       
    • Pressure incluced anisotropy of interconnected cracks (pdf:212kB)
      Simon R. Tod, John Hudson and Enru Liu
       
    Circulated for information:
    • The Use of Low Frequencies for Sub-Basalt Imaging (pdf:725kB)
      Anton Ziolkowski, Peter Hanssen, Robert Gatliff, Xiang-Yang Li, Helmut Jacubowicz

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    63rd Annual International EAGE Meeting, Amsterdam, The Netherlands, 11 - 15 June 2001

    • Does Fliud viscosity influence seismic velocity? (pdf:70kB)
      Mark Chapman
       
    • New formulation for reflection coefficients (pdf:70kB)
      Fabien Borocin
       
    • Anisotropy analysis and processing of Alba 4C OBC data (pdf:1.3MB)
      Hengchang Dai, Xiang-Yang Li and Mark MacLeod
       
    • Converted-wave imaging in inhomogenuous, anisotropic media: part I - parameter estimation (pdf:282kB)
      Xiang-Yang Li and Jerry Yuan
       
    • Converted-wave imaging in inhomogenuous, anisotropic media: part II - prestack migration (pdf:1.4MB)
      Xiang-Yang Li, Hengchang Dai and Jerry Yuan
       
    • Sensitivity of interfacial compliances to fluid staturation and pore pressure (pdf:255KB)
      Enru Liu, Xiang-Yang Li and Zhongjie Zhang
       
    • Effects of thin layers on the detection of azimuthal anisotropy using P-waves (pdf:482KB)
      Yi-Jie Liu, Anton Ziokowski, Enru Liu, and Xiang-Yang Li
       
    • The effect on seismic anisotropy of fluid flow in cracked media (pdf:626KB)
      Simon R. Tod, John Hudson and Enru Liu
       
    • Application of prestack Kirchhoff migration to vertical cable seismic data (pdf:790B)
      Hejie Wang and Xiang-Yang Li
       
    • Seismic anisotropy in sediments with clay-sand mixture (pdf:256KB)
      Jun Yan, Enru Liu and Xiang-Yang Li
       
    • Petrophysical inversion of well-log and VSP data using a dual-prosity model (pdf:451KB)
      Jun Yan, Enru Liu, Xiang-Yang Li and Roger Scrutton
       
    • PS-wave conversion-point equation for layered anisotropic media (pdf:726KB)
      Jerry Yuan and Xiang-Yang Li
       
    • Converted-wave moveout analysis in layered anisotropic media: a case study (pdf:57KB)
      Jerry Yuan, Xiang-Yang Li and Anton Ziokowski
       

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    2000

    70th Annual International SEG Meeting, Calgary, Canada, 6-11 August, 2000

    • Compensating for the effects of gas clouds by prestack migration: A case study from Valhall (pdf:853KB)
      Hengchang Dai, Xiang-Yang Li and Mike Mueller
       
    • VSP-CDP-tau-p depth migration in complex areas (pdf:2.4MB)
      Alexander Druzhinin
       
    • A practical approach to P-SV prestack time migration and velocity analysis for transverse isotropy (pdf:1.3MB)
      Xiang-Yang Li and Alexander Druzhinin
       
    • Seismic detection of fluid saturation in aligned fractures (pdf:335KB)
      Enru Liu and Xiang-Yang Li
       
    • Converted waves for sub-basalt imaging? (pdf:1.7MB)
      Peter Hanssen, Xiang-Yang Li and Anton Ziolkowski
       
    • Can we extract fracture information from 3D marine streamer data? (pdf:637KB)
      Yi-Jie Liu, Xiang-Yang Li and Peter Anderton
       
    • The impact of multiple suppression on vertical cable data imaging (pdf:927KB)
      Jack Wang, Alexander Druzhinin and Xiang-Yang Li
       
    • Using a semi-empirical approach for petrophysical inversion: a case study from North Sea (pdf:360KB)
      Jun Yan, Enru Liu and Roger Scrutton
       
    • Time-lapse VSP monitoring of steam injection (pdf:817KB)
      Anna Droujinina, Colin MacBeth and Patrick Corbett
       
    Circulated for information:
    • Incorporating stress-sensitivity into dynamic poro-elasticity (pdf:167KB)
      Mark Chapman, Sergei V. Zatsepin and Stuart Crampin
       
    • Time-lapse seismic changes in a CO2injection process in a fractured reservoir (pdf:464KB)
      Erika Angerer, Stuart Crampin, Xiang-Yang Li and Thomas L. Davis
       
    • Shear-wave splitting in a critical self-organized crust: the New Geophysics (pdf:1.6MB)
      Stuart Crampin
       
    • Second-order Born-Rytov prestack depth imaging demonstrated on a field data set (pdf:281KB)
      Alexander Druzhinin, Jan Pajchel, Steen Petersen, and Philippe Thierry
       

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    62nd Annual International EAGE Meeting, Glasgow, Scotland, 29 May - 2 June 2000

    • The Effects of Gas Clouds on Converted-wave Imaging: a Case Study from Valhall (pdf:2.4MB)
      Hengchang Dai, Xiang-Yang Li and Mike Mueller
       
    • A Nonsingular Elastic Kirchhoff Formula Applied to VSP Data (pdf:948KB)
      Alexander Druzhinin and Colin MacBeth
       
    • Sub-Basalt Imaging in the North Atlantic Using WalKaway VSPs (pdf:377KB)
      Alexander Druzhinin, Colin MacBeth and Jonathan Scorer
       
    • Successful Depth Imaging below Basalt - Rockall Experience (pdf:298KB)
      Alexander Druzhinin, Xiang-Yang Li, Colin MacBeth and Kenneth Hitchen
       
    • Converted-Wave Velocity Analysis: Searching for Vc and gamma (pdf:535KB)
      Xiang-Yang Li
       
    • Estimation of Pore or Fracture Fluid from Seismic Measurements (pdf:291KB)
      Enru Liu and Xiang-Yang Li
       
    • Multiple Suppression in Vertical Cable Seismic (pdf:660KB)
      Jack Wang, Alexander Druzhinin and Xiang-Yang Li
       
    • Estimating Pore Aspect Ratio from Velocity Prediction (pdf:511KB)
      Jun Yan, Colin MacBeth and Xiang-Yang Li
       
    • Determining Reservoir Parameters from Log and Core Data: a Case Study from the North Sea (pdf:457KB)
      Jun Yan, Enru Liu and Xiang-Yang Li
       
    • A Time-Frequency Approach to the Analysis of Time-Lapse VSP (pdf832KB:)
      Anna Droujinina and Colin MacBeth
       
    Circulated for information:
    • Changes in shear-wave anisotropy in time-lapse data: a case study (pdf:274KB)
      Erika Angerer, Stuart Crampin and Xiang-Yang Li
       
    • Prediction of Dynamic Porosity for Reservoir Characterization (pdf:107KB)
      Alexander Druzhinin
       
    • Improved Born-Rytov Prestack Depth Imaging - Oseberg Field, North Sea (pdf:197KB)
      Alexander Druzhinin, Jan Pajchel, Steen Petersen and Philippe Thierry
       

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    9th International workshop of seismic anisotropy, Houston, USA, 26-31 March 2000

    • Multicomponent P-SV prestack migration for transverse isotropy (pdf:1.6MB)
      Xiang-Yang Li and Alexander Druzhinin
       
    • Seismic detection of fluid saturation in aligned fractures (pdf:304KB)
      Enru Liu and Xiang-Yang Li
       
    • Can we extract fracture information from 3D marine streamer data ? (pdf:480KB)
      Xiang-Yang Li, Yi-Jie Liu and Enru Liu
       
    • A case study of anisotropic velocity analysis for 4C seismic data (pdf:430KB)
      Xiang-Yang Li and Jianxin Yuan
       
    • Processing of anisotropic images for upscaling and fracture detection (pdf:86KB)
      Alexander Druzhinin and Xiang-Yang Li
       

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    Seismic Waves in Laterally Inhomogeneous Media, Castle of Zahradky, Czech Rep., 5-9 June 2000

    • Exact Ray Solutions for Arbitrary velocity profiles (pdf:43KB)
      Alexander Druzhinin
       
    • Ray perturbation error - sensitivity analysis in anisotropic media (pdf:62KB)
      Alexander Druzhinin
       
    • Seismic ray modelling in consolidated porous media (pdf:41KB)
      Alexander Druzhinin
       

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    1999

    69th Annual International SEG Meeting, Huston, USA, 31 Oct - 5 Nov,1999

    • Sub-basalt depth imaging using stacking attributes (pdf:1.0Mb)
      Alexander Druzhinin, Colin MacBeth, and Ken Hitchen
       
    • Converted wave phase stability in seabed seismic data (pdf:183kb)
      Hengchang Dai and Colin MacBeth
       
    • Anisotropic processing of 4-C sea-bed seismic data: a case example from West Africa (pdf:1.4MB)
      Laurent Godin, Colin MacBeth and Jean Arnaud
       
    • Fracture detection using marine streamer data: a case study (pdf:941KB)
      Thomas Kühnel, Xiang-Yang Li and Jens-Petter Kvarstein
       
    • An accurate P-SV moveout equation for transverse isotropy (pdf368KB:)
      Xiang-Yang Li and Jian-Xin Yuan
       
    • Anisotropic velocity analysis for 4-C seismic data: a case study (pdf982KB:)
      Xiang-Yang Li and Jian-Xin Yuan
       
    • Analysis of azimuthal variation in P-wave signature from orthogonal streamer lines (pdf:219KB)
      Yi-Jie Liu, Xiang-Yang Li and Colin MacBeth
       
    • Elliptical anisotropy - regression or advance? (pdf:540KB)
      Frank Ohlsen and Colin MacBeth
       
    • Estimation of sea-bed sediment anisotropy using vertical cable seismics (pdf:156KB)
      Hejie Wang, Colin MacBeth and Xiang-Yang Li
       

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    61st Annual International EAGE Meeting, Helsinki, Finland, 7 - 11, June 1999

    • A phase slowness approximation for vertical fracture determination using walkaway VSP (pdf:390KB)
      Colin MacBeth
       
    • Estimating Vp/Vs ratio from converted waves: a 4C case example (pdf:686KB)
      Xiang-Yang Li, Jianxin Yuan, Anton Ziolkowski and Floris Strijbos
       
    • Converted-wave moveout and parameter estimation for transverse isotropy (pdf:291KB)
      Xiang-Yang Li and Jianxin Yuan
       
    • Anisotropy and correlation analysis in North Sea 4-C sea-floor seismic data (pdf:442KB)
      Jianxin Yuan, Xiang-Yang Li and Anton Ziolkowski
       
    • Modelling converted waves for sub-basaltic imaging (pdf:860KB)
      Peter Hanßen and Xiang-Yang Li
       
    • Separation of up- and down-going wave fields in vertical cable seismic (pdf:621KB)
      Hejie Wang, Colin MacBeth and Xiang-Yang Li
       

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    International Conference on Artificial Intelligence, Las Vegas, 1999

    • Inversion of fracture parameters by using the artificial neural network (pdf:113KB)
      Hengchang Dai, Xiang-Yang Li and Colin MacBeth
       

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    Karlsruhe Imaging Workshop, Karlsruhe, Germany, 1999

    • Velocity independent sub-basaltic imaging (pdf:35KB)
      Alexander Druzhinin and Colin MacBeth
       

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    1998

    68th Annual International SEG Meeting, New Orleans, 13-18 September,1998

    • Vertical fracture estimation using walk-away VSP (pdf:396KB)
      MacBeth, C.
       
    • Fracture detection using P-P and P-S wave in multicomponent sea-floor data (pdf:938KB)
      Li, X.-Y.
       
    • Using converted shear-waves for imaging beneath basalt in deep water plays (pdf:630KB)
      Li, X.-Y., MacBeth, C., Hitchen, K. and Hanssen, P.
       
    • Interpreting the residual wavefield for polarization change in 4-C shear data matrix (pdf:149KB)
      Dai, H. and Li, X.-Y.
       
    • Anisotropy estimates from a North Sea VSP (pdf:239KB)
      Ohlsen, F. and MacBeth, C.
       
    • A new approach for converted-wave moveout in transversely isotropic media (pdf:243KB)
      Yuan, J. and Li, X.-Y.
       
    • Numerical modeling of seismic wave propagation in media with distributed inclusions (pdf:703KB)
      Liu, E., Pointer, T., Hudson, J. and Queen, J.
       

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    60th Annual International EAGE Meeting, Leipzig, Germany, 8-12, June 1998

    • An essential processing correction for seabed recording (pdf:636KB)
      MacBeth, C.
       
    • Are near-offset shear wave conversions useful? (pdf:375KB)
      MacBeth, C.
       
    • Azimuthal moveout analysis for fracture detection in marine streamer data (pdf:150KB)
      Li, X.-Y.
       
    • Processing North Sea 4-C sea-floor seismic data (pdf:325KB)
      Yuan, J., Li, X.-Y., Ziolkowski, A. and Strijbos, F.
       
    • Using the BPNN as a general feature detector (pdf:104KB)
      Dai, H., MacBeth, C. and Li, X.-Y.
       
    • Fracture estimation from walkway VSPs recorded in a deviated well (pdf:105KB)
      Ohlsen, F., MacBeth, C., Vestby, J. and Magnus, I.
       

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    8th International workshop of seismic anisotropy, Boussens, France, 20-24, April, 1998

    • Sensitivity of symmetry determination by decomposition (pdf:36KB)
      Baerheim, R. and MacBeth, C.
       
    • Processing multicomponent sea-floor data for azimuthal anisotropy: theory and overview (pdf:66KB)
      Li, X. Y.
       
    • Estimating seismic anisotropy using local shear wave conversion (pdf:375KB)
      MacBeth, C.
       
    • A case study of azimuthal moveout analysis for fracture detection (pdf:155KB)
      Li, X.-Y.
       
    • Boundary element modelling of seismic wave in media with distributed cracks (pdf:673KB)
      Liu, E., Pointer, T., Hudson, J. and Queen, J.
       
    • Fracture estimation from walkway VSOs records in a deviated well (pdf:105KB)
      Ohlsen, F., MacBeth, C., Vestby, J. and Magnus, I.
       

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    SEG/EAGE/CPS Joint Meeting, Beijing, China, 1998

    • Seismic anisotropy of fractured and cracked porous rock (pdf:260KB)
      Liu, E. and Queen, J.
       
    • Boundary element modell ing of multiple scattering of seismic waves by distributed inclusions (pdf:730KB)
      Liu, E., Pointer, T., Hudson, J. and Queen, J.
       
    • Processing P-P and P-S waves for azimuthal anisotropy in multicomponent sea-floor data (pdf:280KB)
      Li, X.-Y.
       
    • AVD - an emerging new marine technology for reservoir characterization (pdf:940KB)
      MacBeth, C. and Li, X.-Y.
       

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    1997

    67th Annual International SEG Meeting, Dallas, USA, 1997

    • Viability of azimuthal variation in P-wave moveout for fracture detection (pdf:217KB)
      Li, X-Y.
       
    • Fracture-related amplitude variations with offset and azimuth in marine seismic data (pdf:262KB)
      MacBeth, C., Li, X-Y., Ohlsen, F., Jakubowicz, H. and Kirk, W.
       
    • The crack dependency of the reflection coefficient (pdf:135KB)
      Kühnel, T., Li,X.-Y. and MacBeth, C.
       
    • AVA observations in walkaround VSPs (pdf:322KB)
      Horne, S. and MacBeth, C.
       

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    59th Annual International EAGE Meeting, Geneva, 26-30 May, 1997

    • Source signature deconvolution in marine VSP data (pdf:133KB)
      Higgings, M., MacBeth, C. and Ziolkowski, A..
       
    • AVA observations in azimuthal VSPs, (pdf:85KB)
      Horne, S. and MacBeth, C.
       
    • Separation of anisotropy and structure during processing (pdf:161KB)
      Kühnel, T. and Li, X.-Y.
       
    • Imaging beneath basalt using converted waves in marine seismic data (pdf:222KB)
      Li, X.-Y. and MacBeth, C.
       
    • Cross-hole channel wave analysis from Antrim shale gas play, Michigan basin (pdf:153KB)
      Liu, E., Queen, J. and Cox, D.
       
    • A field example of fracture analysis using shear-wave conversions from near-offset VSP
      MacBeth, C., Wilson, M. and Willis, M.
       
    • Fracture-related amplitude variations with offset and azimuth in marine seismic data (pdf:318KB)
      MacBeth, C.,Li, X.-Y., Ohlsen, F., Jakubowicz, H., and Kirk, W.,
       
    • Three-component recording distortion at a water-solid interface (pdf:139KB)
      MacBeth, C.
       
    • Orientation of non-gimballed three-component geophones in sea-floor data (pdf:289KB)
      Yuan, J., Li, X.-Y. and Taylor, D.
       

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    1996

    66th Annual International SEG Meeting, Denver, 10-15 November, 1996

    • Interpreting qS1 polarization due to intersecting fractures (pdf:175KB)
      MacBeth, C.
       
    • Mixed mode AVO response infractured media (pdf:165KB)
      Li, X.-Y., Kühnel, T. and MacBeth, C.
       
    • Anisotropy versus dip - a separation approach (pdf:131KB)
      Kühnel, T. and Li, X.-Y.
       
    • The effective elastic compliance of fractured rock (pdf:178KB)
      Liu, E., MacBeth, C., Pointer, T., Hudson, J. and Crampin, S.
       
    • Seismic wave propagation in media with interconnected cracks and pores (pdf:209KB)
      Pointer, T., Liu, E., Hudson, J. and Crampin S.
       
    • 'Unexpected' shear-wave double reflections, (pdf:65KB)
      Ohlsen, F. and MacBeth, C.
       

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    58th Annual International EAGE Meeting, Amsterdam, 3-7 , June 1996

    • Unexpected shear-wave behavior (pdf:159KB)
      Horne, S. and MacBeth, C.
       
    • Can we separate the effects of anisotropy and structure from P-wave travel-time data? (pdf:155KB)
      Kühnel, T. and Li, X-Y.
       
    • Shear-wave analysis for azimuthal anisotropy using pseudo-rotation of marine VSP (pdf:146KB)
      MacBeth, C.
       
    • Converted-wave AVO and it's implications (pdf:220KB)
      Li, X-Y., Kühnel, T. and MacBeth, C.
       
    • The seismic Shock Gun: A new source for multicomponent VSPs
      MacBeth, C., Arnold, G., Hughes, S. and Prescott, C.
       
    • Stress-induced coupling between anisotropic permeability and shear-wave splitting
      Zatsepin, S. and Crampin, S.
       
    • Abnormal shear-wave polarization as indicator of high pressures and over-pressures
      Crampin, S., Zatsepin, S., Slater, C. and Brodov, L.
       

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    7th International workshop of seismic anisotropy, 1996

    • Can we separate the effects of a structure from surface seismic data? (pdf:139KB)
      Kühnel, T. and Li, X.-Y.
       
    • 'Unexpected' shear-wave behaviours (pdf:126KB)
      Horne, S., MacBeth, C. and Liu, E.
       
    • Near-offset VSP inversion (pdf:???KB)
      Horne, S., MacBeth, C., Queen, J., Cox, D. and Rizer, W.
       

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    SEG Research Workshop Abstracts, Bigsky, August, 1996

    • The effective elastic compliance of fractured rock (ps.gz:19KB)
      Liu, E. and MacBeth, C.
       
    • Unexpected shear-wave bahaviour (ps.gz:18KB)
      Horne, S. and Macbeth,C.
       
    • Global optimization methods for near-offset VSP inversion (ps.gz:18KB)
      Horne, S. and Macbeth,C.
       

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    1995

    65th Annual International SEG Meeting, Houston, 8-13, October 1995

    • Characterizing fractured reservoir by multicomponent reflection data and VSPs in the Paris Basin (pdf:215KB)
      Li, X-Y. MacBeth, C., Lefeuvre, F. and Tabti, H.
       
    • Interpreting data matrix asymmetry and polarization changes depth in multicomponent reflection surveys (pdf:163KB)
      Li, X-Y. and MacBeth, C.
       
    • Fracture characterization at the Conoco Borehole Test Facility using shear-wave anisotropy (pdf:163KB)
      Horne, S., MacBeth, C., Queen, J. and Rizer, W.
       

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    57th Annual International EAEG Meeting, Glasgow, 1995

    • A new understanding of seismic anisotropy in the Earth's crust (pdf:152KB)
      Crampin, S. and Zatsepin, S.V.
       
    • Identifying P- and S-waves using an artificial neural network (pdf:126KB)
      Dai, H. and MacBeth, C.
       
    • Determination of subsurface anisotropy using marine near-offset VSP (pdf:141KB)
      Higgins, M. and MacBeth, C.
       
    • Inversion of shear wave splitting estimates from Near Offset VSPs (pdf:102KB)
      Horne, S. and MacBeth, C.
       
    • Integrated analysis of multi-component VSPs and surface data for fracture reservoir delineation in the Paris Basin (pdf:276KB)
      Li, X-Y., MacBeth, F., Lefeuvre, F. and Tabti, H.
       
    • Detecting polarization change with depth in multi-component reflection surveys (pdf:193KB)
      Li, X-Y.
       
    • Determination of fracture parameters using local shear-wave conversion (pdf:120KB)
      MacBeth, C., Boyd, M., Liu, E. and Queen, J.H.
       
    • Improving reservoir characterization using seismic anisotropy (pdf:154KB)
      MacBeth, C.
       
    • Determination of polarity reversals in multi-component data (pdf:???KB)
      Zeng, X. and MacBeth, C.
       
    • A non-linear anisotropic poro-elastic theory for pre-stressed fluid-saturated rock (pdf:???KB)
      Zatsepin, S.V. and Crampin. S.
       

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    1994

    64th Annual International SEG Meeting, Los Angeles, 1994

    • Surface-to-borehole illumination of a high velocity layer using marine VSP (pdf:156KB)
      MacBeth, C., Liu, E., Boyd, M. and Sweeney, K.
       
    • Limitations on near-surface correction for multicomponent offset VSP (pdf:1149KB)
      MacBeth, C., Li, X-Y. and Horne, S.
       
    • Multicomponent processing of channel waves for anisotropy (pdf:1022KB)
      MacBeth, C., Liu, E. and Horne, S.
       
    • Amplitude corrections for multicomponent surface seismic data (pdf:156KB)
      Li, X-Y.
       

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    56th Annual International EAEG Meeting, Vienna, 1994

    • Efficient conversion to shear-waves at near-normal incidence in marine VSPs (pdf:139KB)
      MacBeth, C. and Liu, E.
       
    • Optimal generation of converted shear-waves in a marine VSP (pdf:165KB)
      MacBeth, C. and Liu, E.
       
    • Shear-wave amplitude processing for fracture reservoir delineation (pdf:157KB)
      Li, X-Y., MacBeth, C. and Crampin, S.
       
    • A neural network picker for VSP data (pdf:157KB)
      Dai, H. and MacBeth, C.
       
    • Anisotropic shear-wave inversion for crack parameters using a hybrid Genetic Algorithm (pdf:222KB)
      Horne, S. and MacBeth, C.
       
    • Shear-wave anisotropy from multicomponent VSP data, Iatan East Howard field, Texas (pdf:166KB)
      Baptie, B.J. and Crampin, S.
       
    • Inversion of Channel Wave Dispersion for Anisotropy using a Hybrid Genetic Algorithm (pdf:105KB)
      Horne, S., MacBeth, C. and Liu, E.
       
    • Near-surface Shear-Wave Anisotropy Study Using VSPs, Yaroslavl Area, Russia (pdf:150KB)
      Slater, C., Crampin, S. and Brodov, L.
       

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    6th International Workshop of Seismic Anisotropy, Trondheim,1994

    • The fracture criticality of rocks in the upper half of the crust (pdf:13KB)
      Crampin, S.
       
    • The Seismic effects of veins, sealed cracks and melt surfaces (pdf:10KB)
      Crampin,S.
       
    • Monitoring the progress of production fronts across hydrocarbon reservoirs in the uniwell borehole configuration (pdf:16KB)
      Crampin, S., Peverato, R. and Leary, P.
       
    • Shear-wave splitting and the in-situ anisotropy in the mine-by experiment (pdf:25KB)
      Holmes, G., Crampin,S. and Young, R.
       
    • Applications of a hybrid genetic algorithm to inversion for seismic anisotropy (pdf:18KB)
      Horne, S., MacBeth, C. and Queen, J.
       
    • Amplitude corrections for multicomponent data (pdf:9KB)
      Li, X-Y. and Crampin, S.
       
    • Detecting polarization changes from reflectivity asymmetry in multicomponent data (pdf:11KB)
      Li, X-Y. and MacBeth, C.
       
    • Diffraction of seismic waves by fractures: modelling and observations (pdf:11KB)
      Liu, E. Crampin, S. and Queen, J.
       
    • Integrated analysis of nine-component VSP and surface data: preliminary results (pdf:17KB)
      MacBeth, C., Li, X-Y., Lefeuvre, F. and Tabti, H.
       
    • Near-surface shear-wave anisotropy in clay near Yaroslavl, Russia (pdf:18KB)
      Slater, C., Crampin, S. and Brodov, L.
       
    • Interval measurements of anisotropy in randomly layered media (pdf:10KB)
      Zeng, X. and MacBeth, C.
       

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    1993

    Beijing-SEG, 1993

    • Processing methods for multicomponent seismology (pdf:832KB)
      MacBeth, C., Li, X. and Wild, P.
       
    • Multicomponent deconvolution algorithm for VSP data for shear-wave splitting (pdf:447KB)
      Zeng, X. and MacBeth, C.
       
    • Characterizing fracture systems by analysing shear-wave splitting in multicomponent seismic data (pdf:1041B)
      Li, X.-Y., Crampin, S. and MacBeth, C.
       

    Moscow-SEG, 1993

    • Observations of anisotropic cusps in walkaway VSPs in a clay reservoir in the Juravskoe oil field
      Slater, C., Crampin, S., Brodov, L.Y. and Kuznetsov, V.M.
       

    63rd Annual International SEG Meeting, Washington, 1993

    • Near-surface correction for nine-component VSP (pdf:508KB)
      MacBeth, C., Li, X. and Queen, J.
       
    • Limits to crack density: the state of fractures in crustal rocks (pdf:53KB)
      Crampin, S. and Leary, P.C.
       
    • The need for underground research laboratories in sedimentary basins (pdf:151KB)
      Crampin, S., Queen, J. and Rizer, W.
       

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    55th Annual International EAEG Meeting, Stavanger, Norway, 1993

    • Inversion for seismic anisotropy using genetic algorithms (pdf:142KB)
      Horne, S. and MacBeth, C.
       
    • Analysis of split shear-waves from near-offset VSP data using a neural network (pdf:191KB)
      Dai, H. and MacBeth, C.
       
    • Interpreting non-orthogonal split shear-waves in multicomponent VSPs (pdf:203KB)
      Li, X.-Y., Crampin, S. and MacBeth, C.
       
    • Optimal VSP geometry for recording shear-wave anisotropy (pdf:109KB)
      MacBeth, C., Wild, P., Crampin, S. and Brodov, L.Y.
       
    • Overburden correction for multicomponent VSP data (pdf:161KB)
      MacBeth, C., Zeng, X. and Li, X.-Y.
       
    • Observations of anisotropic cusps in a clay reservoir (pdf:179KB)
      Brodov, L.Y., Kuznetsov, V.M., Slater, C. and Crampin, S.
       

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    1992

    62nd Annual International SEG Meeting, New Orleans, 25-29, October, 1992

    • Modeling shear-wave splitting in VSP in South Casper Creek, Wyoming (pdf:511KB)
      Li, X. Y. and Crampin, S.
       
    • Observations and modeling of fracture-related seismic velocity and attenuation anisotropy from multiazimuthal reverse VSPs (pdf:465KB)
      Liu, E. and Crampin, S.
       
    • Correlation of shear-wave splitting with oil Production from reflection surveys in the Austin Chalk, South Texas (pdf:648KB)
      Li, X. Y. and Crampin, S.
       
    • Detecting lateral variability in fracture parameters from surface data (pdf:545KB)
      MacBeth, C, Li, X. Y., Crampin, S. and Mueller, M.
       
    • Shear-wave anisotropy estimations in the Romashkino field, Russia (pdf:445KB)
      Zeng, X. and MacBeth, C.
       

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    54th Annual International EAEG Meeting., Paris, France, 1-5 June 1992

    • Variation of reflection coefficients with crack strike and density in anisotropic media (pdf:168KB)
      Li, X. Y. and Crampin, S.
       
    • Shear-wave anisotropy in the Austin chalk from multi-offset VSP data (pdf:204KB)
      Yardley, G. and Crampin, S.
       
    • Guided-waves in crosshole seismic surveys (pdf:105KB)
      Lou, M., Crampin, S., Liu, E. and Queen, J.
       
    • Fracture-related seismic velocity and attenuation anisotropy at the Conoco borehole test facility, Oklahoma (pdf:109KB)
      Liu, E., Crampin, S. and Queen, J.
       
    • Shear-wave characteristics in the Austin chalk from three reflection lines in South Texas (pdf:175KB)
      Li, X. Y., Crampin, S and Mueller, M.
       
    • Subsurface anisotropy from shear-wave splitting in zero or near-offset VSPs? - case studies (pdf:106KB)
      MacBeth, C., Zeng, X. and Crampin, S.
       
    • Algebraic processing techniques for estimating shear-wave splitting (pdf:79KB)
      Zeng, X. and MacBeth, C.
       

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    1991

    61st Annual International SEG Meeting, Houston, Texas, 10-14 November, 1991

    • Linear-transform techniques for analyzing shear-wave splitting in four-component seismic data (pdf:367KB)
      Li, X. Y. and Crampin, S.
       
    • Estimating near-surface fracture systems from seismic anisotropy using a combination of crosshole surveys, VSPs and reverse VSPs (pdf:364KB)
      Liu, E. and Crampin, S.
       
    • Seismic guided wave propagation in cracked thin-layer sedimentary reservoirs and its potential application in EOR monitoring bt crosshole surveys (pdf:376KB)
      Lou, M. and Crampin, S.
       

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    53rd Annual International EAEG Meeting, Florence, Italy, 26-30 May 1991

    • Fracture detection using reserve vertical seismic profiles and cross-hole surveys (pdf:55KB)
      Liu, E., Crampin, S. and Queen, J.
       
    • Observations of shear-wave splitting from mining induced stress-failures (pdf:96KB)
      Graham, G. and Crampin, S.
       
    • Shear-wave point singularities in sedimentary basins (pdf:52KB)
      Crampin, S.
       
    • Information content of amplitude versus offset of shear-waves in anisotropic media (pdf:51KB)
      Yardley, G., Graham, G.,and Crampin, S.
       
    • Inversion of VSP field data for anisotropy with singularities, (pdf:43KB)
      MacBeth, C.
       
    • Processing anisotropy with the shear-wave analysis package (SWAP) (pdf:30KB)
      Wild, P.
       
    • Implementing pre-stack rotation for four-component shear-wave reflection data (pdf:108KB)
      Li, X. Y. and Crampin. S.
       
    • Modelling guided waves in the thin-layer sedimentary reservoirs in cross-hole surveys (pdf:55KB)
      Lou, M. and Crampin, S.
       

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    1990

    60th Annual International SEG Meeting, San Francisco, California, 23-27, September, 1990

    • Inversion of shear-wave polarization for anisotropy using three-component offset VSPs (pdf:134KB)
      MacBeth, C.
       
    • Case studies of complex component analysis of shear-wave splitting (pdf:282KB)
      Li, X. Y. and Crampin, S.
       

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    5th International Workshop of Seismic Anisotropy, Edinburgh, Scotland, 2-6 July 1990

    • Analysis of a three-component marine VSP for shear-wave splitting as an indication of stress conditions within a hydrocarbon reservoir (pdf:475KB)
      Campden, D. and Crampin, S.
       
    • Isotropy and anisotropy at the Geysers steam field, California (pdf:475KB)
      Campden, D., Crampin, S., Majer, E. and McEvilly, V.
       
    • Toward understanding shear-wave anisotropy in the crust (pdf:475KB)
      Crampin, S.
       
    • Processing and Measuring shear-wave splitting (pdf:475KB)
      Campden, D. and Crampin, S.
       
    • Extensive-dilatancy anisotropy: the distributions of cracks, microcracks and preferentially oriented pores in the most rocks in the crust (pdf:475KB)
      Crampin, S.
       
    • The possibility of temporal changes in shear-wave splitting to monitor changes in the in situ structure of the rockmass (pdf:475KB)
      Crampin, S.
       
    • Monitoring stress-changes before earthquakes by analyzing temporal changes in shear-wave splitting (pdf:475KB)
      Crampin, S. and Colleagues
       
    • Complex component analysis of shear-wave splitting: theoretical studies (pdf:475KB)
      Li, X.-Y. and Crampin, S.
       
    • Complex component analysis of shear-wave splitting: case studies (pdf:475KB)
      Li, X.-Y. and Crampin, S.
       
    • Dynamic and kinematic features of shear-waves in a horizontally stratified anisotropic earth (pdf:475KB)
      Li, X.-Y. and Crampin, S.
       
    • Evaluation of crack parameters from a shallow cross-hole survey (pdf:475KB)
      Liu, E., Crampin, S. and Queen, J.
       
    • Dispersion of Channel waves in thin anisotropic waveguides (pdf:475KB)
      Lou, M. and Crampin, S.
       
    • A case study of inversion of shear-wave polarization (pdf:475KB)
      MacBeth, C.
       
    • Reservoir characterization by inverting shear-wave polarization (pdf:475KB)
      MacBeth, C.
       
    • Estimationg the effects of anisotropy (pdf:475KB)
      MacBeth, C.
       
    • Report on the anisotropic modelling collaboration: model 1- ANISEIS response (pdf:475KB)
      Wild, P. and Crampin, S.
       
    • Catalogue of combinations of EDA- and PTL-anisotropy in sedimentary basins (pdf:475KB)
      Wild, P. and Crampin, S.
       
    • Automatic determination of anisotropy parameters from shear-wave splitting in the lost hills VSP (pdf:475KB)
      Yardley, G. and Crampin, S.
       

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    EAGE/SEG Workshop: Estimation and Practical Use of Seismic Velocities, 1990

    • Reservoir description using shear-wave velocities (pdf:402KB)
      MacBeth, C.
       

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    1989

    51st Annual International EAGE Meeing, Berlin, Germany, 1989

    • Extracting information from shear-wave particle motion: the effects of source orientation
      Igel, H. and Crampin, S.
       

    12IWSA Abstracts

     

     
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