- Home
- Conferences
- Conference Proceedings
- Conferences
71st EAGE Conference and Exhibition incorporating SPE EUROPEC 2009
- Conference date: 08 Jun 2009 - 11 Jun 2009
- Location: Amsterdam, Netherlands
- ISBN: 978-90-73781-67-2
- Published: 08 June 2009
81 - 100 of 585 results
-
-
Method for Calibrating Seismic Imaging Velocities
More LessAnisotropy can cause large depth errors in images obtained with isotropic velocity analysis and depth migration. Typically, the errors become apparent only where the seismic image intersects a well location, that is, where true depths are measurable. Sp
-
-
-
Effective HTI Model Parameters from Full Azimuth Reflection Angle
More LessWe use residual moveouts measured along continuous full azimuth reflection angle gathers, in order to obtain effective HTI model parameters. The angle gathers are generated through a special angle domain imaging system, for a wide range of reflection angl
-
-
-
Determination of Traveltime Parameters in VTI Media
Authors R. Aleixo, J. Schleicher and J. CostaFor modern long-offset acquisition geometries, a hyperbolic traveltime approximation is no longer sufficient to flatten the CMP gather because of medium inhomgeneity or anisotropy. For transversly isotropic media with a vertical symmetry axis (VTI media),
-
-
-
Moveout Approximation for HTI/VTI Layered Media
More LessAnisotropy in subsurface geological models is primarily caused by two factors: Sedimentation in shale/sand layers and fractures. The sedimentation factor is mainly modeled by Vertical Transverse Isotropy, whereas the fractures are modeled by a Horizontal
-
-
-
Seismic Modelling with Discontinuous Galerkin Finite-element Method – Application to Large Scale 3D Elastic Media
Authors V. Etienne, J. Virieux, N. Glinsky and S. OpertoWe present a Discontinuous Galerkin (DG) finite-element formulation with convolutional perfectly matched layer (CPML) absorbing condition suitable to large scale seismic modelling in 3D elastic media. The issues of performance and load balancing of the pr
-
-
-
qSV-wave Triplications in Multilayered VTI Media
Authors Y. V. Roganov and A. StovasTriplications for qSV-waves are important features of the wave propagation in a transversely isotropic (VTI) medium with vertical symmetry axis. They can create problems for standard seismic processing. We analyze the triplications conditions in the multi
-
-
-
Numerical Simulation of Waves' Propagation in Anisotropic Elastic Media by Lebedev's Grids – RAM Saving and Stable PML
Authors V. V. Lisitsa, E. V. Lys and D. M. VishnevskyThis paper presents Lebedev scheme (LS) for simulation of waves' propagation in arbitrary anisotropic elastic media. This is second order explicit finite-difference scheme on staggered grids and is natural generalization of well known Virieux one used for
-
-
-
3D-3C Seismic Wave Modeling in Multilayered Anisotropic Viscoelastic Media Using the Haskell-Thomson Method
Authors V. Roganov, Y. Roganov and A. KostyukevychA stable method for calculating 3D-3C seismic reflected and transmitted wavefields in a horizontally layered anisotropic viscoelastic medium is derived. It makes use of delta-operators, the sixth-dimensional Stroh formalism and the Haskell-Thomson matrix
-
-
-
The Decomposed Element-Free Galerkin Method for Visco-Elastic Wave Propagation with Wave Scattering Problems
Authors M. Katou, T. Matsuoka, H. Mikada and E. AsakawaWe have developed the Decomposed element-free Galerkin method (DEFGM), a kind of three-dimensional finite-element method for solving wave-propagation problems. We first compared the DEFGM with analytical or reflectivity method for checking the accuracy. T
-
-
-
Wave Propagation Modeling in Viscoelastic Heterogeneous Media with CPML
Authors A. Dhemaied, F. Rejiba, C. Camerlynck, L. Bodet and R. GuérinA 2nd order accurate time, 2nd or 4th order accurate space, 2D P-SV staggered-grid finite-difference scheme is proposed to simulate seismic-wave propagation in unbounded viscoelastic media, for both seismology and engineering applications. The anelastici
-
-
-
Our Experiences of 3D Synthetic Seismic Modeling with Tip-wave Superposition Method and Effective Coefficients
Authors H. B. Helle, M. Ayzenberg, A. Aizenberg, K. D. Klem-Musatov, J. Pajchel and B. UrsinWe show that seismic waves travelling in the subsurface are subject to two physically different processes, namely propagation inside smoothly inhomogeneous layers and reflection and transmission at internal reflectors. We propose a new approach to modelin
-
-
-
Efficient Algorithm for 3D Ray Tracing in 3D Anisotropic Medium
Authors M. Dwornik and A. PietaIn this paper we present efficient algorithm for 3D ray tracing in anisotropic medium using parallel algorithms. Algorithm bases on Fermat's principles and uses grid model of velocity parameters. Arrival time of propagation was calculated only on external
-
-
-
Proxy Models for Unconventional Gas Forecasting and Reserve Analysis
Authors C. Jordan, C. R. Smith, R. Jackson and B. WaeyenCurrently, there is an assortment of reservoir analysis methods ranging from traditional decline and type-curve matching to rate-pressure polynomials and detailed rate-pressure simulation. Yet, despite its many limitations, conventional decline analysis i
-
-
-
Prediction of Fracture Systems with Geomechanical Reservoir Models – Case Study Piesberg
By R. BissenThe detailed documentation of joint systems and their spatial variability are crucial for the optimal exploitation of fractured reservoirs. The extrapolation of well data up to reservoir scale is complex. This study investigates the potential of geomechan
-
-
-
Challenging the Myth of Layercake Stratigraphy of Permian Rotliegend Reservoirs – A Case Study from the P1 Block
Authors V. M. Vernain-Perriot, S. Baffi, A. Moscariello, C. Baunack and G. ParryThis paper describes the results of a reservoir characterisation study of the Rotliegend reservoir in the structure P01-FA located in the western part of the Netherlands sector of the North Sea. Sedimentology, log analysis and high-resolution seismic were
-
-
-
Practical Experience of the Operative Finding, Mapping and Monitoring of Man-caused Gas Pool by Geoelectric Methods
Authors M. Yakymchuk, S. P. Levashov, I. M. Korchagin and B. B. SyniukThe practical experience of experimental application in 2008 of untraditional geoelectric methods of forming short-pulsed electromagnetic field (FSPEF) and vertical electric-resonance sounding (VERS) (FSPEF-VERS express-technology) for the monitoring obse
-
-
-
Tournaisian and Visean Deep Stratigraphic Gas Traps – Example from the MEX/GOL-SV Felds in the Dnieper-Donets Basin
Deep, stratigraphic gas traps in the Dnieper-Donets Basin (DDB), Ukraine, are subject to increased interest and development activities in recent years. 3D time-migrated seismic data processed in 2008, first time access to full well log coverage by means o
-
-
-
Rock Physics Based Prestack Seismic Reservoir Characterization – Application to Thin Bed
Authors Y. B. Guo, Y. J. Zhou, J. Q. Tao, X. H. Zhang and M. QiangIn this paper, we study the Sulige gas field, the largest gas field found so far in China. Reservoir prediction in this area is challenging due to the thin beds and strong heterogeneity. Based on the geological conditions of the main pay zone, we first co
-
-
-
The Giant Azadegan Field, Reservoir Characterization Focused on Sarvak Fm. Reservoirs
Authors B. Mostaghel and Z. AfrassiabianAfter Discovery of three giant fields before Islamic revolution of Iran, in exploration order, Agahhajary, Ahwaz and Marun, one of the most important giant fields which have discovered between 1999 – 2003 in the world, was AZADEGAN. The AZADEGAN field is
-
-
-
Applying Neuro-fuzzy Model to Predict Reservoir Properties from Seismic Attributes – A Case Study in an Oil Field in Iran
Authors M. R. Vasheghani Farahani, M. Nabi-Bidhendi, H. Khoshdel and S. TorabiWe applied neuro-fuzzy model to predict reservoir properties from seismic attributes. We used local linear neuro-fuzzy model tree (LOLIMOT) algorithm to train our model. This model uses well log data and seismic attributes in a well location for training.
-