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Martin Landrø

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Børge Arntsen

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Rune Holt

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Alexey Stovas

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Bjørn Ursin

Articles

2015

  1. Grude, S., J. Dvorkin and M. Landrø, 2015, Permeability variation with porosity, pore space geometry, and cement type: A case history from the Snøhvit field, the Barents Sea, Geophysics, 80, D43-D49. pdf
  2. Haavik K. E. and M. Landrø, 2015, Variable source depth acquisition for improved marine broadband seismic data, Geophysics, 80, A69-A73. pdf
  3. Kiær, A.F., O. Eiken and M. Landrø, 2015, Calendar time interpolation of amplitude maps from 4D seismic data, Geophysical Prospecting, pdf
  4. Landrø, M., 2015, Aspect ratio histograms of 3D ellipsoids and 2D ellipses – Analytical relations and numerical examples, Geophysics, 80, D429-D440. pdf
  5. Liu Y., D. Draganov, K. Wapenaar and B. Arntsen, 2015, Retrieving virtual reflection responses at drill-bit positions using seismic interferometry with drill-bit noise, Geophysical Prospecting, 1-13. pdf
  6. Raknes, E.B., B. Arntsen and W. Weibull, 2015, Three-dimensional elastic full waveform inversion using seismic data from the Sleipner area, Geophysical Journal International, 202, 1877-1894. pdf
  7. Raknes, E.B, W. Weibull and B. Arntsen, 2015, Seismic imaging of the carbon dioxide gas cloud at Sleipner using 3D elastic time-lapse full waveform inversion, International Journal of Greenhouse Gas Control 42, 26-45. pdf
  8. Hao, Q., A.Stovas and T.Alkhalifah, 2015, The offset-midpoint traveltime pyramid in 3D HTI media, Geophysics, 80, n1, T51-T62. pdf
  9. Hao, Q. and A.Stovas, 2015, The offset-midpoint traveltime pyramid in TTI media, Geophysical Prospecting, 63 (3), 587-596. pdf

2014

  1. Stovas, A., and T.Alkhalifah, 2014, Analytical approximations of diving wave imaging in constant gradient medium, Geophysics 79(4), S131-S140. pdf
  2. Roganov, Yu., and A.Stovas, 2014, Low-frequency normal wave propagation in a periodically layered medium with weak-contrast in elastic properties, Geophysical Prospecting (Early view). pdf
  3. Hao, Q. and A.Stovas, 2014, 111Equation Chapter 1 Section 1 P-wave diffraction and reflection traveltimes for a homogeneous 3D DTI model, Journal of Seismic Exploration, 23(5), 405-429. pdf
  4. Roganov, Yu., Stovas, A., and Yu.Roganov, 2014, Analysis of pass and stop bands in a periodically layered medium, Seismic Exploration Techniques, N2, 34-41.
  5. Pigulevskiy, P., Nikitash, L., and A.Stovas, 2014, On the role of potential methods to study the salt and reef structures in the Dnieper-Donets basin, Vestnik of National University in Kiev, 63, N4, 25-29. pdf
  6. Favretto-Cristini, N., Tantsereva, A., Cristini, P., Ursin, B., Komatitsch, D., and A.M. Aizenberg, 2014, Numerical modeling of zero-offset laboratory data in a strong topographic environment: Results for a spectral-element method and a discretized Kirchhoff integral method. Earthquake Science, 27, 1-19.pdf
  7. Ursin, B., Favretto-Cristini, N., and Cristini, P., 2014, Fresnel volume and interface Fresnel zone for reflected and transmitted waves from a curved interface in anisotropic media. Geophysics, 79, no. 5, C123 – C134. pdf
  8. Ursin, B., Silva, M.G., and Porsani, M.J., 2014, Signal and traveltime parameter estimation using singular value decomposition. Geophysics, 79, no. 5, U1 – U14. pdf
  9. Raknes, E.B., Weibull, W. and Arntsen, B., 2014, Elastic velocity analysis and time-lapse full-waveform inversion, The Leading Edge, 33, 1000-1006. pdf
  10. Weibull, W. and Arntsen, B., 2014, Reverse-time demigration using the extended imaging condition, Geophysics, 79, WA97-WA105. pdf
  11. Weibull, W., and B. Arntsen, 2014, Anisotropic migration velocity analysis using reverse-time migration, Geophysics 79, R13-R25. pdf
  12. Raknes, E. B., and Arntsen. B., 2014, Time-lapse full-waveform inversion of limited-offset seismic data using a local migration regularization, Geophysics, 79, WA117-WA128. pdf
  13. Raknes, E. B, W. Weibull and B. Arntsen, 2014, Elastic migration velocity analysis and time-lapse full-waveform inversion, The Leading Edge 33, 1000-1006. pdf
  14. Haavik, K. and M. Landrø, 2014, Iceberg ploughmarks illuminated by shallow gas in the central North Sea, Quaternary Science Reviews, 103, 34-50. pdf
  15. Grude, S., M. Landrø, J. Dvorkin, 2014, Pressure effects caused by CO2 injection in the Tubåen Fm., the Snøhvit field, International Journal of Greenhouse Gas Control, 27, 178-187. pdf
  16. Grude, S., M. Landrø, J.C. White, O. Torsæter, 2014, CO2 saturation and thickness predictions in the Tubåen Fm., Snøhvit field, from analytical solution and time-lapse seismic data, International Journal of Greenhouse Gas Control, 29, 248-255. pdf
  17. Bhakta, T. and M. Landrø, 2014, Estimation of pressure-saturation changes for unconsolidated reservoir rocks with high Vp/Vs ratio, Geophysics, 79, M35-M54. pdf
  18. Witsker, S. O. S., M. Landrø and P. Avseth, 2014, Using a pseudo-steady-state flow equation and 4D seismic traveltime shifts for estimation of pressure and saturation changes, Geophysics, 79, M11-M24. pdf

2013

  1. Porsani, M.J., Ursin, B., Silva, M.G., and Melo, P.E.M., 2013, Dip-adaptive SVD filtering for seismic reflection enhancement. Geophysical Prospecting, 61, 42-52,pdf
  2. Golikov, P, P. Avseth, A. Stovas, and R. Bachrach, 2013, Rock physics interpretation of heterogeneous and anisotropic turbidite reservoirs, Geophysical Prospecting 61, N2, 448-457,pdf
  3. Stovas, A., and Alkhalifah, T., 2013, The TTI slowness surface approximation, Geophysical Prospecting 61, N3, 568-573,pdf
  4. Bhuiyan, M.H., Holt, R.M., Larsen, I., and Stenebråten, J.F., 2013, Static and dynamic behaviour of compacted sand and clay: Comparison between measurements in Triaxial and Oedometric test systems, Geophysical Prospecting 61, 329-340,pdf
  5. Tiapkina, O., M. Landrø and Y. Tiapkin, 2013, Ground-roll subtraction from common-shot gathers with significant trace-to-trace variations in the energy of random noise,Journal of Geophysics and Engineering, 10, 1-23,pdf
  6. Landrø, M., 2013, Repeatability issues of high-frequency signals emitted by air-gun arrays, Geophysics, 78, P19-P27,pdf
  7. Grude, S., M. Landrø and B. Osdal, 2013, Time-lapse pressure-saturation discrimination for CO2 storage at the Snøhvit field, International Journal of Greenhouse Gas Control, 19, 369-378,pdf
  8. Barker, D. and M. Landrø, 2013, Estimation of bubble time period for air-gun clusters using potential isosurfaces,Geophysics, 78, P1-P7,pdf
2012
  1. Barker, D. and M. Landrø, 2012, Simple expression for the bubble time period of two clustered air guns, Geophysics, 77, A1-A3,pdf
  2. Barker, D. and M. Landrø, 2012, Controlled source strength variation by changing the firing pressure – a sensitivity study for 4D calibration, Geophysical Prospecting, 60, 480-487,pdf
  3. Tiapkina, O., M. Landrø, Y. Tyapkin and L. Brian, 2012, Single-station SVD-based polarization filtering of ground roll: perfection and investigation of limitations and pitfalls, Geophysics 77, V41-V59,pdf
  4. Tempone, P., M. Landrø, E. Fjær, 2012, 4D gravity response of compacting reservoirs: Analytical approach, Geophysics, 77, G45-G54,pdf
  5. Tygel, M., Ursin, B., Iversen, E. and de Hoop, M.V., 2012, Estimation of geological dip and curvature from zero-offset seismic reflections in heterogeneous anisotropic media, Geophysical Prospecting, 60, 201-216,pdf
  6. Stovas, A., and Fomel, S., 2012, Generalized moveout approximation in tau-p domain, Geophysics 77, N2, U23-U30,pdf
  7. Stovas, A., and Fomel, S., 2012, “Shifted hyperbola” moveout approximation revisited, Geophysical Prospecting 60, 395-399,pdf
  8. Golikov, P. and Stovas, A., 2012, Traveltime parameters in a tilted elliptical anisotropic medium, Geophysical Prospecting 60, 433-443,pdf
  9. Stovas, A., and Alkhalifah, T., 2012, A new traveltime approximation for TI media, Geophysics 77, N4, C37-C42,pdf
  10. Golikov, P. and Stovas, A., 2012, Asymptotic analysis of moveout approximations in a VTI medium, Journal of Geophysics and Engineering 9, 428-432,pdf
  11. Roganov, Yu. and Stovas, A., 2012, Low frequency wave propagation in periodically layered media, Geophysical Prospecting 60, 825-837,pdf
  12. Golikov, P. and Stovas, A., 2012, Traveltime parameters in tilted transverse isotropic media, Geophysics 77, N6, C4,pdf
  13. Alassi, H.T. and Holt, R.M:, 2012, Relating discrete element method parameters to rock properties using classical and micropolar elasticity theories, Int. J. for Numerical and Analytical Methods in Geomechanics, 36, 1350-1367,pdf
  14. Langseth, E. and M. Landrø, 2012, Time-lapse 2D interpretation of gas migration in shallow layers – compared to reservoir simulation, International Journal of Greenhouse Gas Control, 10, 389-396,pdf
  15. Skopintseva, L., A. Aizenberg, M. Ayzenberg, M. Landrø and T. Nefedkina, 2012, The effect of interface curvature on AVO inversion of near-critical and post-critical PP-reflections, Geophysics, 77, N1-N16,pdf
  16. Landrø, M. and P. Hatchell, 2012, Normal modes in seismic data – revisited, Geophysics, 77, W27-W40,pdf
  17. Bhuyian, A., M. Landrø and S. Johansen, 2012, 3D CSEM modeling and time-lapse sensitivity analysis for subsurface CO2 storage, Geophysics, 77, E343-E355,pdf
  18. Ursin, B., Pedersen, Ø., and Arntsen, B., 2012, Flux-normalized wave-field decomposition and migration of marine seismic data. Geophysics, 77, no. 3, S83-S92,pdf
  19. Abbad, B., and Ursin, B., 2012, High-resolution bootstrapped differential semblance, Geophysics, 77, no. 3, U39-U47, pdf
  20. Iversen, E., Tygel, M., Ursin, B., and de Hoop, M.V., 2012, Kinematic time migration and demigration of reflections in prestack seismic data, Geophysical Journal International, 189, 2,pdf
  21. Pestana, R.C., Ursin, B., and Stoffa, P.L., 2012, Rapid expansion and pseudo spectral implementation for reverse time migration in VTI media. Journal of Geophysics and Engineering, 9, 291-301,pdf
  22. Tygel, M., Ursin, B., Iversen, E., and de Hoop, M.V., 2012. Estimation of geological dip and curvature from zero-offset seismic reflections in heterogeneous anisotropic media, Geophysical Prospecting, 60, 201-216, pdf
  23. Grude, S., B. Osdal and M. Landrø, 2012, Sea-bed diffractions and their impact on 4D seismic data, Geophysical Prospecting, 61, 199-214,pdf

2011

  1. Osdal, B. and Landrø, M., 2011, Estimation of changes in water column velocities and thicknesses from time lapse seismic data, Geophysical Prospecting,pdf
  2. Pedersen, Ø., Ursin, B., and Helgesen, H.K., 2010, One-way wave-equation migration of compressional and converted waves in a VTI medium, Geophysics, 75, S237-S257,pdf
  3. Stovas, A., 2010, Generalized moveout approximation for qP- and qSV-waves in a homogeneous transversely isotropic medium, Geophysics, 75, D79-D84,pdf
  4. Stovas, A., 2010, Unconstrained Dix-type inversion in a layered VTI medium, Journal of Geophysics and Engineering, 8, 1-5,pdf
  5. Mehdi Zadeh, H., M. Landrø and O.I. Barkved, 2011, Long-offset time-lapse seismic: Tested on the Valhall LoFS data, Geophysics, 76, O1-O13,pdf
  6. Duffaut, K., P. Avseth and M. Landrø, 2011, Stress and fluid sensitivity in two North Sea oil fields – comparing rock physics models with seismic observations, The Leading Edge, 30, 98-102,10.1190/1.3535438
  7. Wiik, T., Løseth, L.O., Ursin, B. and Hokstad, K., 2011, TIV contrast source inversion of mCSEM data,Geophysics, 76, F65-F76,pdf
  8. Abbad, B, Ursin, B. and Porsani, M. J., 2011, A fast, modified parabolic Radon transform, Geophysics, V11-V24,pdf
  9. Malcolm, A.E., de Hoop, M.V. and Ursin, B., 2011, Recursive imaging with multiply scattered waves using partial image regularization: A North Sea case study, Geophysics, 76, B33-B42,pdf
  10. Rabben, T.E. and Ursin, B., 2011, AVA inversion of the top Utsira Sand reflection at the Sleipner field, Geophysics, 76, C53-C63,10.1190/1.3567951
  11. Landrø, M., Amundsen, L. and Barker, D., 2011, High frequency signals from air gun arrays, Geophysics, 76, 1-9,pdf
  12. Holt, R.M., Bhuiyan, M.B., Bakk, A., Stenebråten, J.F., and Fjær, E., 2011, Stress-induced versus lithological anisotropy in compacted claystones and soft shales, The Leading Edge 30, 312-317,pdf
  13. Roganov, Yu. and Stovas, A., 2011, Caustics in a periodically layered transversely isotropic medium with vertical symmetry axis, Geophysical Prospecting, 59, 375-385,pdf
  14. Zadeh, M. H. and M. Landrø, 2011, Monitoring a shallow subsurface gas flow by time-lapse refraction analysis, Geophysics, 76, O35-O43,pdf
  15. Skopintseva, L., M. Ayzenberg, M. Landrø, T. Nefedkina and A. M. Aizenberg, 2011, Long-offset AVO inversion of PP reflections from plane interfaces using effective reflection coefficients, Geophysics, 76, C65-C79,pdf
  16. Stovas, A., 2011, The unphysical qP-wave caustics in acoustic VTI media, Seismic Exploration Techniques, N4, 68-72,pdf

2010

  1. Tyapkin, Y., Ursin, B., Perroud, H., Silinska, O. and Tiapkina, O., 2010, Zero- and first-order approximations for least-squares estimation of seismic signal with coherent and random noise, Journal of Geophysics and Engineering, 7, 51-63,pdf
  2. Pedersen, Ø., Brandsberg-Dahl, S. and Ursin, B., 2010, Seismic imaging using lateral adaptive windows, Geophysics, 75, 73-79,pdf
  3. Alassi, H.T.I., Holt, R.M., and Landrø, M., 2010, Relating 4D seismics to reservoir geomechanical changes using a discrete element approach, Geophysical Prospecting, 58, 657-668,pdf
  4. Skopintseva, L., and Stovas, A. 2010, Overburden dependent AVA inversion,Geophysics,75,N2,C15-C23pdf
  5. Fomel, S., and Stovas, A., The generalized non-hyperbolic moveout approximation, Geophysics, 75, N2, U9-U18,pdf
  6. Stovas, A., and Roganov, Yu., 2010, Scattering versus intrinsic attenuation in periodically layered media, Journal of Geophysics and Engineering, 7, 135-142,pdf
  7. Mehdi Zadeh, H., Srivastava, R.P., Vedanti, N. and Landrø, M., 2010, Seismic monitoring of in situ combustion process in a heavy oil field, Journal of Geophysics and Engineering, 7, 16-29,pdf
  8. Porsani, M.J., Silva, M.G., Melo, P.E.M., and Ursin, B., 2010, SVD filtering applied to ground-roll attenuation, Journal of Geophysics and Engineering, 7, 284-289,pdf
  9. Nag, S., Alerini, M., and Ursin, B., 2010, PP/PS anisotropic stereotomography, Geophysical Journal International, 181, 427-452,pdf
  10. Wang, S., de Hoop, M.V., and Ursin, B., 2010, Illumination analysis of wave-equation imaging with curvelets, Inverse Problems, 26, 115013 (27 pp),pdf
  11. Duffaut, K., Landrø, M. and Sollie, R., 2010, Using Mindlin theory to model friction-dependent shear modulus in granular media, Geophysics, 75, E143-E152,pdf
  12. Misaghi, A., Hegabhan, S., Landrø, M. and Javaherian, A., 2010, A comparison of rock physics models for fluid substitution in carbonate rocks, Exploration Geophysics, 41, 146-154,pdf
  13. Tempone, P., Fjær, E. and Landrø, M., 2010, Improved solution of displacements due to a compacting reservoir over a rigid basement. Applied Mathematical Modelling, 34, 3352-3362,pdf
  14. Evensen, A.K. and Landrø, M., 2010, Time-lapse tomographic inversion using a Gaussian parametrization of the velocity changes. Geophysics, 75, U29-U38,pdf
  15. Roganov, Yu. and Stovas, A., 2010, On shear wave triplications in a multilayered transversely isotropic medium,Geophysical Prospecting, 58, N4, 549-559,pdf
  16. Golikov, P., and Stovas, A., 2010, New weak-contrast approximation for reflection coefficients in VTI media, Journal of Geophysics and Engineering, 7, 343-350,pdf
  17. Duffaut, K., Landrø, M. and Sollie, R., 2010, Using Mindlin theory to model friction-dependent shear modulus in granular media, Geophysics, 75, E143-E152,pdf
  18. Amundsen, L., Westerdahl, H., Thompson, M., Haugen, J.A., Reitan, A., Landrø, M., and Ursin, B., 2010, Multicomponent ocean bottom and vertical cable seismic acquisition for wavefield reconstruction, Geophysics, 75, WB87-WB94,pdf

2009

  1. B. Abbad and B. Ursin, 2009, Automatic nonhyperbolic velocity analysis, Geophysics,74, U1-U12,pdf
  2. M. Alerini and B. Ursin, 2009, Adaptive focusing window for seismic angle migration, Geophysics,74,S1-S10, pdf
  3. A.E. Malcolm, B. Ursin, M. V. de Hoop, 2008, Seismic imaging and illumination with internal multiples, Geophysical Journal International, 176, 847-864 pdf
  4. M.A. Ayzenberg, A.M. Ayzenberg and B. Ursin, 2009, Tip-wave superposition method with effective reflection and transmission coefficients: a new 3D Kirchhoff-based approach to synthetic seismic modeling, The Leading Edge, 582-588,pdf
  5. Dadashpour M., Echeverria-Ciaurri D., Kleppe, J., Landrø, M., 2009: Porosity and permeability estimation by integration of production and time-lapse near and far offset seismic data, Journal of Geophysics and Engineering, 6, 325-344, pdf
  6. Vivas, F.A., Pestana, R.C., and Ursin, B., 2009, A new stabilized least-squares imaging condition, Journal of Geophysics and Engineering, 6, 264-268,pdf
  7. Ayzenberg, M., Tsvankin, I., Aizenberg, A., and Ursin, B., 2009, Effective reflection coefficients for curved interfaces in transversely istotropic media. Geophysics,74,W33-W53,pdf

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