Gineste, M., Zheng, Y., Eidsvik, J (2018). Velocity estimation in layered media using ensembled-based sequential filtering. 80th EAGE Conference & Exhibition 2018, Copenhagen.

Fjeldstad, T. and Omre, H. (2017). Bayesian inversion of convolved hidden Markov models with applications in reservoir prediction. Submitted

Fjeldstad, T. and Avseth, P. (2017). Joint Seismic and Petrophysical Inversion Constrained by Facies in a Bayesian Framework. 79th EAGE Conference & Exhibition 2017; 2017-06-12 - 2017-06-15.

Fjeldstad, T. and Avseth, P. (2017). Probabilistic inversion with a facies dependent rock physics model. 4th International Workshop on Rock Physics; 2017-05-29 - 2017-06-02.

Fjeldstad, T. and Omre, H. (2017). Bayesian inversion based on Gaussian mixture prior models with applications in reservoir characterisation. Spatial Statistics 2017: One World: One Health; 2017-07-04 - 2017-07-07.

Gineste, M., Eidsvik, J (2017). Seismic Waveform Inversion Using The Ensemble Kalman Smoother. 79th EAGE Conference & Exhibition 2017, Paris.

Paglia, J., Eidsvik, J., Grøver A. and Lothe A. (2018). Statistical modeling for online pore pressure prediction from pre-drill analysis and well logs. Submitted.

Luo, X. and Tjelmeland, H. (2017). Prior specification for binary Markov mesh models. Submitted.

Amaliksen, I. and Omre, H. (2015). Bayesian inversion of time-lapse seismic data using bimodal prior models. EAGE Petroleum Geostatistics 2015, Biarritz, France.

Eidsvik, J., Mukerji, T., Bhattacharjya, D. and Dutta, G. (2015). Value of information analysis of geophysical data for drilling decisions. EAGE Petroleum Geostatistics 2015, Biarritz, France.

Fjeldstad, T. and Omre, H. (2015). Convolved hidden Markov models for well-log inversion. EAGE Petroleum Geostatistics 2015, Biarritz, France.

Gineste, M. and Eidsvik, J. (2015). Framework for seismic inversion of full waveform data using sequential filtering. EAGE Petroleum Geostatistics 2015, Biarritz, France.

Grana, D., Fjeldstad, T. and Omre, H. (2015). Bayesian Gaussian mixture linear inversion in geophysical inverse problems. EAGE Petroleum Geostatistics 2015, Biarritz, France.

Luo, X. and Tjelmeland, H. (2015). A flexible Markov mesh model for facies modelling. EAGE Petroleum Geostatistics 2015, Biarritz, France.

Rimstad, K. and Omre, H. (2015). Bayesian generalized Gaussian inversion of seismic data. EAGE Petroleum Geostatistics 2015, Biarritz, France.

Arnesen, P. and Tjelmeland, H. (2015). Prior specification of neighbourhood and interaction structure in binary Markov random fields. Submitted.

Austad, H.M. and Tjelmeland, H. (2015). Approximations and bounds for binary Markov random fields. Submitted.

Asfaw, Z.G. and Omre, H. (2014). Localized/shrinkage kriging predictors. Submitted.

Lindberg, D.V. and Grana, D. (2014). Petro-elastic log-facies classification using the expectation-maximization method and hidden Markov models. Submitted.

Lindberg, D.V. and Omre, H. (2014). Inference of the transition matrix in convolved hidden Markov models by a generalized Baum-Welch algorithm. Submitted.

Lindberg, D. and Lee, H.K.H. (2014). Optimization under constraints by applying an asymmetric entropy measure. Submitted.

Lindberg, D.V. and Omre, H. (2014). Blind categorical deconvolution in two-level hidden Markov models. Submitted.

Lindberg, D.V., Rimstad, E. and Omre, H. (2014). Inversion of well logs into facies accounting for spatial dependencies and convolution effects. Submitted.

Arnesen, P. and Tjelmeland, H. (2013). Fully Bayesian binary Markov random field models: Prior specification and posterior simulation. Submitted.

Rezaie, J. and Eidsvik, J. (2013). Kalman filter variants in the closed skew normal setting. Submitted.

Rezaie, J. Eidsvik, J. and Mukerji, T. (2013). Value of information analysis and Bayesian inversion for closed skew-normal distributions: Applications to seismic amplitude versus offset data. Submitted.

Rimstad, K. and Omre, H. (2012). Skew-Gaussian random fields. Submitted.

Rimstad, K. and Omre, H. (2012). Generalized Gaussian random fields using hidden selection. Submitted.

Aune, E., Simpson, D. and Eidsvik, J. (2012). Parameter estimation in high dimensional Gaussian distributions. Submitted.

Sætrom, J. and Omre, H. (2012). Uncertainty quantication in the ensemble Kalman filter. Submitted.

Rezaie, J., Sætrom, J. and Smørgrav, E. (2012). Reducing the dimensionality of geophysical data in conjunction with seismic history matching. Submitted.

Toftaker, H. and Tjelmeland, H. (2012). Construction of binary multi-grid Markov random field prior models from training images. Submitted.

Møller, J. and Toftaker, H. (2011). Geometric anisotropic spatial point pattern analysis and Cox processes. Submitted.

Martinelli, G., Eidsvik, J. and Hauge, R. (2011). Dynamic decision making for graphical models applied to oil exploration. Submitted.

Rezaie, J. and Eidsvik, J. (2011). Value of information of monitor surveys. 73st EAGE Conference & Exhibition - Vienna, Austria.

Aune, E. and Simpson, D.P. (2011). Parameter estimation in high dimensional Gaussian distributions. ISI Dublin, Ireland.

Avseth, P. and Rimstad, K. (2011). Petro-elastic and lithology-fluid inversion from seismic data – state-of-the-art and new opportunities. 73st EAGE Conference & Exhibition - Vienna, Austria.

Rezaie, J. and Eidsvik, J. (2011). Shrinked (1-alpha) ensemble Kalman filter and alpha particle filter. Submitted.

Martinelli, G., Eidsvik, J. and Hauge, R. (2011). The value of sequential prospect selection. IAMG Salzburg.

Aune, E., Eidsvik, J. and Pokern, Y. (2011). Iterative numerical methods for sampling from high dimensional Gaussian distributions. Submitted.

Rimstad, K., Avseth, P.A. and Omre, H. (2011). Hierarchical Bayesian lithology/fluid prediction: A North Sea case study. Submitted.

Rabben, T. and Ursin, B. (2010). AVA inversion of the top Utsira Sand reflection at the Sleipner field. Submitted.

Sætrom, J. and Omre, H. (2010). Ensemble Kalman filtering with shrinkage regression techniques. Submitted.

Tjelmeland, H. and Austad, H.M. (2010). Exact and approximate recursive calculations for binary Markov random fields defined on graphs. Submitted.

Myrseth, I., Sætrom, J. and Omre, H. (2009). Resampling the ensemble Kalman filter. Submitted.

Rimstad, K. and Omre, H. (2009). Impact of rock physics depth trends and Markov random fields on hierarchical Bayesian lithology/fluid prediction. Submitted.

Gjerde, T., Eidsvik, J., Nyrnes, E. and Bruun, B.T. (2009). Normal inverse Gaussian error distributions applied for the positioning of petroleum wells. Submitted.

Ulvmoen, M. and Hammer, H. (2009). Bayesian lithology–fluid inversion - algorithm efficiency. Submitted.

Theune, U., Jensås, I.Ø. and Eidsvik, J. (2009). Analysis of a prior model for a blocky inversion of seismic amplitude versus offset data . Submitted.

Ulvmoen, M. and Omre, H. (2009). Improved resolution in Bayesian lithology/fluid inversion from prestack seismic data and well observations: Part II - Real case study . Submitted.

Ulvmoen, M. and Omre, H. (2009). Improved resolution in Bayesian lithology/fluid inversion from prestack seismic data and well observations: Part I - Methodology. Submitted.

Karimi, O., Omre, H. and Mohammadzadeh, M. (2009). Bayesian closed-skew Gaussian inversion of seismic AVO data into elastic material properties. Submitted.

Hosseini, F., Eidsvik, J. and Mohammadzadeh, M. (2009). Approximate Bayesian inference in spatial GLMM with skew normal latent variables. Submitted.

Karimi, O., Omre, H. and Mohammadzadeh, M (2009). Bayesian closed skew Gaussian inversion of seismic AVO data into elastic material properties. Submitted.

Myrseth, I. and Omre, H. (2009) Reliable uncertainty assessment in history matching production and time-lapse seismic data. Abstract for EAGE Amsterdam.

Myrseth, I. (2009). Robust ensemble Kalman filter for high dimensional data. Submitted.

Ulvmoen, M., Omre, H. and Buland, A. (2009). Spatially coupled lithology/fluid inversion from real seismic data and well observations. Abstract for EAGE Amsterdam.

Rimstad, K. and Omre, H. (2009). Bayesian lithology/fluid inversion constrained by rock physics depth trends and a Markov random field. Abstract for EAGE Amsterdam.

Hammer, H. and Tjelmeland, H. (2008). Approximate forward-backward algorithm for a switching linear Gaussian model – with application to seismic inversion. Submitted.

Myrseth, I. and Omre, H. (2008). The ensemble Kalman filter and related filters. Submitted.

Rimstad, K. and Omre, H. (2008). Joint porosity depth trend estimation and lithology/fluid classification by Bayesian inversion. Extended abstract for Geophysics conference Galway, Ireland.

Myrseth,I. (2008). Robust ensemble Kalman filter for high-dimensional data. Geostats 2008, Santiago, Chile.

Hammer, H. and Ulvmoen, M. (2008). Empirical comparison of two Bayesian lithology–fluid prediction algorithms. Submitted.

Ulvmoen M. (2008). Lithology-fluid inversion from prestack seismic data. Geostats 2008, Santiago, Chile.

Sætrom, J. (2008). Scale-corrected ensemble Kalman filter for observations of production and time-lapse data. Geostats 2008, Santiago, Chile.

Stenerud, V.R., Kippe, V., Lie, K.-A. and Datta-Gupta, A. (2008). Adaptive multiscale streamline simulation and inversion for high-resolution geomodels. Submitted.

Lødøen, O.P. and Omre,H. (2008). Scale-corrected ensemble Kalman filtering applied to production history conditioning in reservoir evaluation. Submitted.

Stenerud, V.R., Lie, K.-A. and Kippe, V. (2007). Generalized travel-time inversion on unstructured grids. Submitted.

Ulvmoen, M. (2007). Lithology-fluid inversion based on prestack seismic data. Extended abstract for Petroleum Geostatistics 2007 Conference, Cascais, Portugal.

Lødøen, O.P. and Tjelmeland, H. (2007). Bayesian calibration of reservoir models using a coarse-scale reservoir simulator in the prior specification. Extended abstract for Petroleum Geostatistics 2007 Conference, Cascais, Portugal.

Hammer, H. and Tjelmeland, H. (2007). Lithology/fluid prediction by simulating from the posterior of a Markov chain prior Bayesian model. Extended abstract for Petroleum Geostatistics 2007 Conference, Cascais, Portugal.

Eidsvik, J., Bhattacharjya, D. and Mukerji, T. (2007). The value of seismic amplitude information. Extended abstract for Petroleum Geostatistics 2007 Conference, Cascais, Portugal.

Myrseth, I.B. (2007). The ensemble Kalman filter adapted for time-lapse seismic data. Extended abstract for Petroleum Geostatistics 2007 Conference, Cascais, Portugal.

Rabben, T.E., Tjelmeland, H. and Ursin, B. (2007). Nonlinear Bayesian joint inversion of seismic reflection coefficients. Extended abstract for Petroleum Geostatistics 2007 Conference, Cascais, Portugal.

Rabben, T.E. and Ursin, B. (2007). Nonlinear least squares inversion of reflection coefficients using Bayesian regularization. Submitted.

Rabben, T.E., Tjelmeland, H. and Ursin, B. (2007). Nonlinear Bayesian joint inversion of seismic reflection coefficients. Submitted.

Stenerud, V.R. and Lie, K.-A. (2006). A multiscale streamline method for inversion of production data. Submitted.

Røislien, J. and Omre,H. (2006). T-distributed random fields: A parametric model for heavy-tailed well-log data. Submitted.

Larsen, A.L., Ulvmoen, M., Omre, H. and Buland, A. (2006). Bayesian lithology-fluid prediction and simulation on the basis of a Markov-chain prior model. Submitted.

Eidsvik, J. and Hokstad, K. (2006). Positioning drill-bit and look-ahead events using seismic traveltime data. Submitted.

Eidsvik, J. and Tjelmeland, H. (2006). On directional Metropolis—Hastings algorithms. Submitted.

Lødøen, O.P. and Tjelmeland, H. (2005). Bayesian calibration of hydrocarbon reservoir models using an approximate reservoir simulator in the prior specification. Submitted.

Kolbjørnsen, O. and Omre, H. (2005). Bayesian inversion of piecewise affine operators in a Gaussian framework. Submitted.

Foss, S.K., de Hoop, M.V. and Ursin, B. (2005). Linearized 2.5-D parameter imaging-inversion in anisotropic elastic media. Submitted.

Ursin, B., de Hoop, M.V., Foss, S.K. and Brandsberg-Dahl, S. (2005). Seismic angle tomography. Submitted.

Ursin, B., de Hoop, M.V., Brandsberg-Dahl, S. and Sollid, A. (2005). Seismic angle migration. Submitted.

Foss, S.K., Ursin, B. and de Hoop, M.V. (2005). Depth consistent reflection tomography using PP and PS seismic data. Submitted.

Ursin, B. (2004). Parameter inversion and angle migration in anisotropic elastic media. Submitted.

Talukdar, M.S., Torsæter, O. and Howard, J.J (2004). Stochastic reconstruction of chalk samples containing vuggy porosity using a conditional simulated annealing technique. Submitted.

Lødøen, O.P., Omre, H., Durlofsky, L.J. and Chen, Y. (2004). Assessment of Uncertainty in Reservoir Production Forecasts using Upscaled Flow Models. Geostat 2004, Banff, Canada.

Tjelmeland, H. and Eidsvik, J. (2004). Directional Metropolis-Hastings updates for posteriors with nonlinear likelihoods. Geostat 2004, Banff, Canada.

Røislien, J. and King, P. (2004). Prediction of oil production conditioned on the breakthrough time. Submitted.

Omre, H. and Lødøen, O.P. (2004). Improved production forecasts and history matching using approximate fluid flow simulators. Submitted.

Eidsvik, J., Avseth, P., Omre, H., Mukerji, T. and Mavko, G. (2004). Stochastic reservoir characterization using pre-stack seismic data. Submitted.

Eidsvik, J., Mukerji, T. and Switzer, P. (2004). Estimation of geological attributes from well logs: an application of hidden Markov chains. Submitted.

Tjelmeland, H. and Eidsvik, J. (2004). On the use of local optimizations within Metropolis-Hastings updates. Submitted.

Foss, S.K. and Ursin, B. (2004). 2.5D modelling, inversion and angle migration in anisotropic elastic media. Submitted.

Stovas, A. and Ursin, B. (2004). New traveltime approximations for a transversely isotropic medium. Submitted.

Foss, S.K., Ursin, B. and Sollid, A. (2003). A practical approach to PP seismic angle tomography. Submitted.

Eidsvik, J. and Tjelmeland, H. (2003). On directional Metropolis-Hastings algorithms. Submitted.

Theting, T.G. (2003). Solving parabolic wick-stochastic boundary value problems using a finite element method. Submitted.

Buland, A., Kolbjørnsen, O. and Omre, H. (2003). Rapid spatially coupled AVO inversion. 73rd SEG International Exposition and Annual Meeting; Dallas, Texas, USA.

Holden, H., Karlsen, K.H. and Risebro; N.H. (2003). On uniqueness and existence of entropy solutions of weakly coupled systems of nonlinear degenerate parabolic equations. Submitted.

Sollid, A. and Ursin, B. (2003). Scattering-angle migration of ocean-bottom seismic data in weakly anisotropic media. Submitted.

Stovas, A. and Ursin, B. (2003). Reflection and transmission responses of layered transversely isotropic viscoelastic media. Submitted.

Brandsberg-Dahl, S., Ursin, B. and de Hoop, M.V. (2003). Seismic velocity analysis in the scattering-angle/azimuth domain. Submitted.

Buland, A. and Omre, H. (2003). Bayesian wavelet estimation from seismic and well data. Submitted.

Buland, A. and Omre, H. (2003). Joint AVO inversion, wavelet estimation, and noise level estimation using a spatially coupled hierachical model. Submitted.

Buland, A., Kolbjørnsen, O. and Omre, H. (2003). Rapid spatially coupled AVO inversion in the Fourier domain. Submitted.

Buland, A. and Omre, H. (2003). Bayesian seismic inversion and estimation in a spatial setting. Extended abstract, 65th EAGE Conference and Exhibition, Stavanger, Norway.

Buland, A. and Omre, H. (2003). Bayesian linerized AVO Inversion. Submitted.

Brandsberg-Dahl, S,, de Hoop, M.V. and Ursin, B. (2003). Focusing in dip and AVA compensation on scattering angle/azimuth common image gathers. Submitted.

Stovas, A., Landrø, M., Torsæter, O., Jensen, J.I. and Kleppe, J. (2003). An integrated study of reservoir fluid flow across faults by laboratory experiments, 4D seismics and reservoir simulation. Extended abstract, 65th EAGE Conference and Exhibition, Stavanger, Norway.

Manouzi, H. and Theting, T.G. (2003). Mixed finite element approximation for the stochastic pressure equation of wick-type. Submitted.

Switzer, P., Mukerji, T. and Eidsvik, J. (2003). Hidden Markov models for stratigraphic sequences with application to well log data. Extended abstract, ISI Meeting; Berlin, Germany.

Eidsvik, J., Omre, H., Mukerji, T., Mavko, G. and Avseth, P. (2002). Stochastic reservoir predictionusing Bayesian integration of rock physics relations and Markov random fields. Submitted.

Eidsvik, J., Mukerji, T. and Switzer, P. (2002). Modelling lithofacies alternations from well logs using hierarchical Markov chains. Extended abstract, SEG Annual Meeting; Salt Lake City, Utah, USA.

Eide, A.L., Omre, H. and Ursin, B. (2002). Prediction of reservoir variables based on seismic data and well observations. Submitted.

Borgos, H.G., Omre, H. and Townsend, C. (2002). Size distribution of geological faults: Model choice and parameter estimation. Submitted.

Omre, H. (2002). Stochastic reservoir models conditioned to non-linear production history observations. Geostatistics 2000 Cape Town, South-Africa.

Borgos, H.G. and Omre; H. (2002). Uncertainty in fault geometries. Geostatistics 2000 Cape Town, South-Africa.

Ettrich, N., Sollid, A. and Ursin, B. (2002). Out-of-plane geometrical spreading in anisotropic media. Submitted.

Ursin, B. and Stovas, A. (2002). Reflection and transmission responses of a layered isotropic visco-elastic medium. Submitted.

Benth, F.E. and Theting, T.G. (2002). Some regularity results for the stochastic pressure equation of Wick-type. Submitted.

Theting, T.G. (2002). Numerical solution of wick-stochastic partial differential equations. Submitted.

Talukdar, M.S. and Torsæter, O. (2002) Reconstruction of chalk pore networks from 2D back scatter electron micrographs using a simulated annealing technique. Submitted.

Talukdar, M.S., Torsæter, O., Ioannidis, M.A. and Howard, J.J. (2002). Sochastic reconstruction of chalk from 2D images. Submitted.

Talukdar, M.S., Torsæter, O., Ioannis, M.A. and Howard, J.J. (2002). Stochastic reconstruction, 3D characterization and network modelling of chalk. Submitted.

Hegstad, B.K. and Omre, H. (2001). Uncertainty in production forecasts based on well observations, seismic data and production history. Submitted.

Buland, A. and Omre, H. (2001). Bayesian wavelet estimation from seismic and well log data. Extended abstract from EAGE 63rd Conference and Technical Exhibition; Amsterdam, The Netherlands.

Stovas, A. and Ursin, B. (2001). Second order approximations of the reflection and transmission coefficients between two visco-elastic isotropic media. Submitted.

Helle, H.B., Bhatt, A. and Ursin, B. (2001). Porosity and permeability prediction from wireline logs using artificial neural networks. A North Sea case study. Submitted.

Schleicher, J., Tygel, M., Ursin, B. and Bleistein, N. (2001). The Kirchhoff-Helmholtz integral for anisotropic elastic media. Submitted.

Toverud, T., Dimri, V.P. and Ursin, B. (2001). Comparison of deconvolution methods for scaling reflectivity. Submitted.

Theting, T.G. (2000). Solving Wick-stochastic boundary value problems using a finite element method. Submitted.

Holden, H. and Øksendal, B. (2000). A white noice approach to stochastic Neumannboundary value problems. Submitted.

Holden, H., Karlsen, H.K. and Lie, K.A. (2000). Operator splitting methods for degenerate convection-diffusion equations II: Numerical examples with emphasis on reservoir simulation and sedimentation. Submitted.

Talukdar, S., Banu, H., Torsæter, O. and Kleppe, J. (2000). Applicability and rate sensitivity of several upscaling techniques in fractured reservoir simulations. 2000 SPE International Petroleum Conference and Exhibition; Villahermosa, Mexico.

Jelmert, T.A., Selseng, H. and Torsæter, O. (2000). Average permeability functions of cores with stress-sensitivity. Submitted.

Causse, E. and Ursin, B. (2000). Viscoacoustic reverse-time migration. Submitted.

Ursin, B. and Porsani, M.J. (2000). Estimation of an optimal mixed-phase inverse filter. Submitted.

Porsani, M.J. and Ursin, B. (2000). Mixed-phase deconvolution and wavelet estimation. Submitted.

Tweheyo, M.T., Holt, T. and Torsæter, O. (1999). An experimental study of the relationship between wettability and oil production characteristics. Submitted.

Lu, G., Ursin, B. and Lutro, J. (1999). Model-based removal of water-layer multiple reflections. Submitted.

Causse, E. and Ursin, B. (1999). Asymptotic error analysis of constant velocity viscoacoustic migration. Submitted.

Ekren, B.O. and Ursin, B. (1999). True-amplitude frequency-wave-number constant-offset migration. Submitted.

Tygel, M. and Ursin, B. (1999). Weak-contrast edge and vertex diffractions in anisotropic elastic media. Submitted.

Causse, E., Mittet, R. and Ursin, B. (1999). Preconditioned full-waveform inversion in generall viscoacoustic media. Submitted.

Holden, H. and Øksendal, B. (1999). A white noise approach to stochastic differential equations driven by Wiener and Poisson processes. Submitted.