Recent Publications

JOURNAL PUBLICATIONS, 2001-PRESENT

  1. Almasov, A., Nguyen, Q. M., and Onur, M.: Life-cycle production optimization with nonlinear constraints using a least-squares support-vector regression proxy, Geoenergy Science and Engineering, 2024. Download
  2. Nguyen, Q. M., Onur, M., and Alpak, F. O.: Bi-Objective Optimization of Subsurface CO2 Storage with Nonlinear Constraints Using Sequential Quadratic Programming with Stochastic Gradients, SPE Journal, 2023. Download.
  3. Alan, C., Cinar, M., and Onur, M.: Prediction of Production-Inflow Profile of a Well Producing Single-Phase Flow of Slightly Compressible Fluid from Multilayer Systems by Temperature and/or Pressure Transient Data, SPE Journal, 2023. Download.
  4. Ozkan, Y., and Onur, M.: Analytical solutions of fractal and anomalous diffusion models for pressure and rate transient analysis, Geoenergy Science and Engineering, 2023. Download.
  5. Almasov, A. and Onur, M.: Life-Cycle Production Optimization of the CO2-Water-Alternating-Gas Injection Process Using Least-Squares Support-Vector Regression Proxy, SPE Journal, 2023. Download (members only).
  6. Li, Y.; Alpak, F. O., Jain, V., Lu, R., and Onur, M.: History-Matching and Forecasting Production Rate and Bottomhole Pressure Data Using an Enhanced Physics-Based Data-Driven Simulator, SPE Reservoir Evaluation & Engineering, 2023. Download (members only).
  7. Li, Y.; and Onur, M.: INSIM-BHP: A physics-based data-driven reservoir model for history matching and forecasting with bottomhole pressure and production rate data under waterflooding, Journal of Computational Physics, 2023. Download (members only).
  8. Nguyen, Q. M.; Onur, M., and Alpka, F. O.: Multi-objective Optimization Of Subsurface CO2 Capture, Utilization, and Storage Using Sequential Quadratic Programming with Stochastic Gradients, Computational Geosciences (preprint), 2023. Download (members only).
  9. Onur, M.; Gul, K. G., and Cinar, M.: Temperature-Transient Analysis for Matrix Linear Flow Toward Infinite-Conductivity Hydraulically Fractured Wells, SPE Journal, 2023. Download (members only).
  10. Almasov, A. and Onur, M.: Life-Cycle Optimization of the Carbon Dioxide Huff-n-Puff Process in an Unconventional Oil Reservoir Using Least-Squares Support Vector and Gaussian Process Regression Proxies, SPE Journal, 2021. Download (members only).
  11. Thiago M.D.S.; Pesco S.; Barreto, A.B.; and Onur, M.: A new procedure for generating data covariance inflation factors for ensemble smoother with multiple data assimilation, Computers & Geosciences, 2021. Download (members only).
  12. Liu, Z. and Reynolds, A.C.: Robust Multiobjective Nonlinear Constrained Optimization with Ensemble Stochastic Gradient Sequential Quadratic Programming-Filter Algorithm, SPE Journal, 2021. Download (members only).
  13. Bela, R.V.; Pesco S.; Barreto, A.; and Onur, M.: Analytical solutions for injectivity and falloff tests in stratified reservoirs with multilateral horizontal wells, Journal of Petroleum Science and Engineering, 2020. Download (members only).
  14. Liu, Z. and Reynolds, A.C.: Gradient-Enhanced Support Vector Regression for Robust Life-Cycle Production Optimization with Nonlinear-State Constraints, SPE Journal, 2020. Download (members only).
  15. Liu, Z. and Reynolds, A.C.: A Sequential-Quadratic-ProgrammingFilter Algorithm with a Modified Stochastic Gradient for Robust Life-Cycle Optimization Problems with Nonlinear State Constraints, SPE Journal, 2020. Download (members only).
  16. Lu, R. and Reynolds, A.C.: Joint Optimization of Well Locations, Types, Drilling Order, and Controls Given a Set of Potential Drilling Paths, SPE Journal, 2020. Download (members only).
  17. Atadeger, A.; Batur, E.; Onur, M; and Thompson, L.G.: Comparison of the Methods for Analyzing Rate- and Pressure-Transient Data from Multistage Hydraulically Fractured Unconventional Gas Reservoirs, SPE Reservoir Evaluation and Engineering, 2020. Download (members only).
  18. Guo, Z. and Reynolds, A.C.: INSIM-FT in Three-Dimensions With Gravity, Journal of Computational Physics, 2019. Download (members only).
  19. Guo, Z.; Reynolds, A.C. and Zhao, H.: Waterflooding Optimization With the INSIM-FT Data-Driven Model, Computational Geoscience, 2018. Download (members only).
  20. Guo, Z. and Reynolds, A.C.: Robust Life-Cycle Production Optimization With a Support-Vector-Regression Proxy, SPE Journal, 2018. Download (members only).
  21. Guo, Z. and Reynolds, A.C.: A Physics-Based Data-Driven Model for History Matching, Prediction, and Characterization of Waterflooding Performance, SPE Journal, 2017. Download (members only).
  22. Lu, R.; Forouzanfar, F. and Reynolds, A.C.: An Efficient Adaptive Algorithm for Robust Control Optimization Using StoSAG, Journal of Petroleum Science and Engineering, 2017. Download (members only).
  23. Le, D.H. and Reynolds, A.C.: Estimation of Mutual Information and Conditional Entropy for Surveillance Optimization, SPE Journal, 2014. Download (members only).
  24. Le, D.H. and Reynolds, A.C.: Optimal Choice of a Surveillance Operation Using Information Theory, Computational Geosciences, 2014. Download (members only).
  25. Forouzanfar, F.; Rossa, E.D.; Russo, R. and Reynolds, A.C.: Life-cycle Production Optimization of an Oil Field with an Adjoint-based Gradient Approach, Journal of Petroleum Science and Engineering, 2013. Download (members only).
  26. Forouzanfar, F. and Reynolds, A.C.: Joint Optimization of Number of Wells, Well Locations and Controls Using A Gradient-Based Algorithm, Chemical Engineering Research and Design, 2013. Download (members only).
  27. Sy, D.T. and Reynolds, A.C.: Theoretical Connections between Optimization Algorithms Based on an Approximate Gradient, Computational Geosciences, 2013. Download (members only).
  28. Zhao, H.; Li, G.; Reynolds, A.C. and Yao, J.: Large Scale History Matching with Quadratic Interpolation Models, Computational Geosceiences, 2013. Download (members only).
  29. Emerick, A.A. and Reynolds, A.C.: Investigation on the Sampling Performance of Ensemble-based Methods, Computational Geosciences, 2013. Download (members only).
  30. Chen, C.; Li, G. and Reynolds, A.C.: Robust Constrained Optimization of Short and Long-Term NPV for Closed-Loop Reservoir Management, SPE Journal, 2012. Download (members only).
  31. Forouzanfar, F; Reynolds, A.C and Li, G: Investigation Optimization of the well locations and completions for vertical and horizontal wells using a derivative-free optimization algorithm – Journal of Petroleum Science and Engineering, 2012. Download (members only).
  32. Emerick, A.A. and Reynolds, A.C.: Ensemble Smoother with Multiple Data Assimilation – Computers & Geosciences, 2012. Download (members only).
  33. Emerick, A.A. and Reynolds, A.C.: Combining the Ensemble Kalman Filter with Markov Chain Monte Carlo for Improved History Matching and Uncertainty Characterization – SPE Journal, 2012. Download (members only).
  34. Zhao, H.; Chen, C.; Do, S.; Oliveira, D.F.B.; Li, G. and Reynolds, A.C.: Maximization of a Dynamic Quadratic Interpolation Model for Production Optimization – accepted for SPE Journal, 2012. Download (members only).
  35. Emerick, A.A. and Reynolds, A.C.: History Matching Time-lapse Seismic Data Using the Ensemble Kalman Filter with Multiple Data Assimilations – Computational Geosciences, 2012. Download (members only).  
  36. Emerick, A.A. and Reynolds, A.C.: History Matching a Field Case Using the Ensemble Kalman Filter with Covariance Localization – SPE Reservoir Evaluation and Engineering, 2011. Download (members only).
  37. Peters, E.; Arts, R.J.; Brouwer, G.K.; Geel, C.R.; Cullick, S.; Lorentzen, R.J.; Chen, Y.; Dunlop; K.N.B.; Vossepoel, F.C.; Xu, R.; Sarma, P.; Alhutali, A.H. and Reynolds, A.C.: Results of the Brugge Benchmark Study for Flooding Optimization and History Matching – SPE Reservoir Evaluation and Engineering, 2011. Download (members only).
  38. Li, G. and Reynolds, A.C.: Uncertainty Quantification of Reservoir Performance Predictions Using a Modification of SPSA Algorithm, Computational Geosciences, 2010. Download (members only).
  39. Han, M.; Zhao, Y.; Li, G. and Reynolds, A.C.: Application of EM Algorithms for Seismic Facices Classification, Computational Geosciences, 2010. Download (members only).
  40. Zhang, K.; Li, G.; Reynolds, A.C.; Yao, J. and Zhang, L.: Optimal Well Placement Using an Adjoint Gradient, Journal of Petroleum Science and Engineering, 2010. Download (members only).
  41. Li, G.; Han, M.; Banerjee, R. and Reynolds, A.C.: Integration of Well Test Pressure Data Into Heterogeneous Geological Reservoir Models, SPE Reservoir Evaluation and Engineering, 2010. Download (members only).
  42. Tavakoli, R. and Reynolds, A.C.: Monte Carlo Simulation of Permeability Fields and Reservoir Performance Predictions with SVD Parameterization in RML Compared with EnKF, Computational Geosciences, 2010. Download (members only).
  43. Emerick, A.A. and Reynolds, A.C.: Combining Sensitivities and Prior Information for Covariance Localization in the Ensemble Kalman Filter for Petroleum Reservoir Applications,  Computational Geosciences, 2010. Download (members only).
  44. Chen, C.; Wang, Y.; Li, G. and Reynolds, A.C.: Closed-Loop Reservoir Management on The Brugge Test Case, Computational Geosciences, 2010. Download (members only).
  45. Tavakoli, R. and Reynolds, A.C.: History Matching with Parameterization Based on the SVD of a Dimensionless Sensitivity Matrix, SPE Journal, 2009. Download (members only).
  46. Wang, Y.; Li, G. and Reynolds, A.C.: Estimation of Depths of Fluid Contacts by History Matching Using Iterative Ensemble Kalman Smoothers, SPE Journal, 2009. Download (members only).
  47. Eydinov, D.; Gao, G.; Li G. and Reynolds, A.C.: Simultaneous Estimation of Relative Permeability and Porosity/Permeability Fields by History Matching Production Data, Journal of Canadian Petroleum Technology, 2009. Download (members only).
  48. Boughrara A.A. and Reynolds, A.C.: Analysis of Injection/Falloff Data of Horizontal Wells, SPE Journal, 2009. Download (members only).
  49. Aanonsen, S.I.; Naevdal, G.; Oliver, D.S.; Reynolds, A.C. and Valles, B.: Review paper: Ensemble Kalman Filter to Petroleum Engineering, SPE Journal, 2009. Download (members only).
  50. Li, G. and Reynolds, A.C.: Iterative Ensemble Kalman Filters for Data Assimilation, SPE Journal, 2009. Download (members only).
  51. Wang, C.; Li, G. and Reynolds, A.C.: Production Optimization in Closed-loop Reservoir Management, SPE Journal, 2009. Download (members only).
  52. Zhao, Y. and Reynolds, A.C.: Estimation and Removal of Tidal Effects from Pressure Data, SPE Journal, 2009. Download (members only).
  53. Chen, S.; Li, G.; Peres, A.M.M. and Reynolds, A.C.: A Well Test for In-Situ Determination of Relative Permeability Curves, SPE Reservoir Evaluation and Engineering, 2008.  Download (members only).
  54. Zafari, M. and Reynolds, A.C.: Assessing the Uncertainty in Reservoir Description and Performance Predictions With the Ensemble Kalman Filter, SPE Journal, 2007. Download (members only).
  55. Boughrara A.A.; Peres A.M.M.; Chen, S.; Machado, A. and Reynolds, A.C.: Approximate Analytical Solutions for the Pressure Response at a Water-Injection Well, SPE Journal, 2007. Download (members only).
  56. Gao, G. and Li, G. and Reynolds, A.C.: A Stochastic Optimization Algorithm for Automatic History Matching, SPE Journal, 2007. Download (members only).
  57. Zhao, Y.; Li, G. and Reynolds, A.C.: Characterizing Measurement Error in Time-lapse Seismic Data and Production Data with an EM Algorithm, Oil & Gas Science and Technology , 2007. Download (members only).
  58. Gao, G.; Zafari, M. and Reynolds, A.C.: Quantifying Uncertainty for the PUNQ-S3 Problem in a Bayesian Setting With RML and EnKF, SPE Journal, 2006 . Download (members only).
  59. Peres, A.M.M.; Boughrara, A.A. and Reynolds, A.C.: Rate Superposition for Generating Pressure Falloff Solutions for Vertical and Horizontal Wells, SPE Journal, 2006. Download (members only).
  60. Gao, G. and Reynolds, A.C.: An Improved Implementation of the LBFGS Algorithm for Automatic History Matching, SPE Journal, 2006. Download (members only).
  61. Zhang, F.; Skjervheim, J.A.; Reynolds, A.C. and Oliver, D.S.: Automatic History Matching in a Bayesian Framework: Example Applications, SPE Reservoir Evaluation and Engineering, 2005. Download (members only).
  62. Reynolds, A.C., Li, R. and Oliver, D.S.: Simultaneous Estimation of Absolute and Relative Permeability by Automatic History Matching of Three-Phase Flow Production Data, J. Canadian Pet. Tech, 2004. Download (members only).
  63. Liu, N. and Oliver, D.S.: Experimental Assessment of Gradual Deformation Method, Mathematical Geology, 2004. Download (members only).
  64. Li, R.; Reynolds, A.C. and Oliver, D.S.: History Matching of Three-Phase Flow Production Data, SPE Journal, 2003. Download (members only).
  65. Oliver, D.S.: Gaussian Co-Simulation: Modeling of the Cross-Covariance, Mathematical Geology , 2003. Download (members only).
  66. Liu, N. and Oliver, D.S.: Evaluation of Monte Carlo Methods for Assessing Uncertainty, SPE Journal, 2003. Download (members only).
  67. Zhang, F.; Reynolds, A.C., and Oliver, D.S.: An Initial Guess for the Levenberg-Marquardt Algorithm for Conditioning a Stochastic Channel to Pressure Data, Mathematical Geology, 2003. Download (members only).
  68. Peres, A.M.M. and Reynolds, A.C.: Theory and Analysis of Injectivity Tests on Horizontal Wells, SPE Journal, 2003. Download (members only).
  69. Li, R.; Reynolds, A.C. and Oliver, D.S.: Sensitivity Coefficients for Three-Phase Flow History Matching, J. Canadian Pet. Tech, 2003. Download (members only).
  70. Zhang, F.; Reynolds, A.C. and Oliver, D.S.: The Impact of Upscaling Errors on Conditioning a Stochastic Channel to Pressure Data, SPE Journal, 2003. Download (members only).
  71. Onur, M. and Reynolds, A.C.: Nonlinear Regression: The Information Content of Pressure and Pressure-Derivative Data, SPE Journal, 2002. Download (members only).
  72. Oliver, D.S.: Conditioning Channel Meanders to Well Observations, Mathematical Geology, 2002. Download (members only).
  73. Zhang, F.; Reynolds, A.C., and Oliver, D.S.: Evaluation of the Reduction in Uncertainty Obtained by Conditioning a 3D Stochastic Channel to Multiwell Pressure Data, Mathematical Geology, 2002. Download (members only).
  74. Abacioglu, Y.; Oliver, D.S. and Reynolds, A.C.: Efficient History-Matching Using Subspace Vectors, Computational Geosciences, 2001. Download (members only).
  75. Oliver, D.S.; Reynolds, A.C.; Abacioglu, Y. and Bi, Z.: Integration of Production Data, Petroleum Geoscience, 2001. Download (members only).

CLASSIC NON-JOURNAL PAPERS

  1. Reynolds, A.C.; Zafari, M. and Li, G.: Iterative Forms of the Ensemble Kalman Filter, Proceedings of the 10th European Conference on the Mathematics of Oil Recovery, Amsterdam, 4-7 Sept 2006. Download (members only).
  2. Zhang, F. and Reynolds, A.C.: Optimization Algorithms for Automatic History Matching of Production Data, 8th European Conference on the Mathematics of Oil Recovery, Freiberg, Germany, 3-6 September 2002. Download (members only).
  3. Reynolds, A.C., He, N. and Oliver, D.S.: Reducing Uncertainty in Geostatistical Description with Well-Testing Pressure Data, AAPG Memoir 71: Reservoir Characterization-Recent Advances, 1999. Download (members only).
  4. Oliver, D.S., He, N. and Reynolds, A.C.: Conditioning Permeability Fields to Pressure Data, 5th European Conference on the Mathematics of Oil Recovery, Leoben, Austrilia, 3-6 September 1996. Download (members only).

CONFERENCE PROCEEDINGS, 2001-PRESENT

  1. Tom, I. U., Nguyen, Q. M., and Onur, M.: Nonlinearly Constrained Well Placement Optimization for Geologic CO2 Storage Using Iterative Latin Hypercube Sampling – paper 95, EAGE ECMOR, 2-5 September 2024, Oslo, Norway. Download.
  2. Adeyemi, A. K., Nguyen, Q. M., and Onur, M.: Streamlining Robust Constrained Production Optimization: An Integrated Framework Utilizing Automatically Differentiated Gradient from Deep-Learning-Based Reservoir Surrogates – paper 97, EAGE ECMOR, 2-5 September 2024, Oslo, Norway. Download.
  3. Nguyen, Q. M., and Onur, M.: Reservoir Forecast and Production Optimization Under Geological Uncertainty Using an Embed-to-Control Deep-Learning Surrogate Model – paper 90, EAGE ECMOR, 2-5 September 2024, Oslo, Norway. Download.
  4. Nguyen, Q. M., and Onur, M.: A Deep-Learning-Based Reservoir Surrogate for Performance Forecast and Nonlinearly Constrained Life-Cycle Production Optimization Under Geological Uncertainty – paper 220002, SPE Europe Energy Conference, 26-28 June 2024, Turin, Italy. Download.
  5. Toktas, O. L, Nguyen, Q. M, and Onur, M.: Comparison of Constrained Life-Cycle Production Optimization Algorithms Based on Stochastic Simplex Approximate Gradients – paper 220105, SPE Europe Energy Conference, 26-28 June 2024, Turin, Italy. Download.
  6. Tom, I., Nguyen, Q. M., and Onur, M.: Performance Comparison of Gradient-Free Optimization Methods for Well Placement and Well Controls Optimization for Geologic CO2 Storage – paper 220026, SPE Europe Energy Conference, 26-28 June 2024, Turin, Italy. Download.
  7. Atadeger, A., Onur, M., Sheth, S., and Banerjee, R.: Deep Learning-Based and Kernel-Based Proxy Models for Nonlinearly Constrained Life-Cycle Production Optimization – paper 212690, SPE Reservoir Characterisation and Simulation Conference and Exhibition, 24-26 January 2023, Abu Dhabi, UAE. Download (members only).
  8. Nguyen, Q. M., Onur, M., and Alpak, F. O.: Nonlinearly Constrained Life-Cycle Production Optimization UsingSequential Quadratic Programming (SQP) With Stochastic Simplex Approximated Gradients (StoSAG) – paper 212178, SPE Reservoir Simulation Conference, 28-30 March 2023, Galveston, Texas, USA. Download (members only).
  9. Atadeger, A., Sheth, S., Vera, G., Banerjee, R., and Onur, M.: Deep Learning-Based Proxy Models to Simulate Subsurface Flow of Three-Dimensional Reservoir Systems – paper 49, EAGE European Conference on the Mathematics of Oil Recovery, September 2022, The Hague, Netherlands. Download (members only).
  10. Li, Y., Nguyen, Q. M., and Onur, M.: Physics-Based Data-Driven Interwell Simulator for Waterflooding Optimization Considering Nonlinear Constraints – paper 209634, SPE EuropEC, 6-9 June 2022, Madrid, Spain. Download (members only).
  11. Liu, Z.  and Reynolds, A.C.: An SQP-Filter Algorithm with an Improved Stochastic Gradient for Robust Life-Cycle Optimization Problems with Nonlinear Constraints – paper SPE 193925, SPE Reservoir Simulation Symposium, 10-11 April 2019, Galvaston, Texas, USA. Download (members only).
  12. Liu, Z.  and Reynolds, A.C.: History Matching an Unconventional Reservoir with a Complex Fracture Network – paper SPE 193921, SPE Reservoir Simulation Symposium, 10-11 April 2019, Galvaston, Texas, USA. Download (members only).
  13. Lu, R.  and Reynolds, A.C.: Joint Optimization of Well Locations, Types, Drilling Order and Controls Given a set of Potential Drilling Paths – paper SPE 193885, SPE Reservoir Simulation Symposium, 10-11 April 2019, Galvaston, Texas, USA. Download (members only).
  14. Guo, Z.  and Reynolds, A.C.: INSIM-FT-3D: A Three-Dimensional Data-Driven Model for History Matching and Waterflooding Optimization – paper SPE 193841, SPE Reservoir Simulation Symposium, 10-11 April 2019, Galvaston, Texas, USA. Download (members only).
  15. He, J.C.; Reynolds, A.C.; Tanaka, S.; Wen, X.H.;  Kamath, J.: Calibrating Global Uncertainties to Local Data: Is the Learning Being Over-Generalized? – paper SPE 191480, SPE Annual Technical Conference and Exhibition, 24-26 September 2018, Dallas, Texas, USA. Download (members only).
  16. Zhao, H.; Kang, Z.J.; Zhang, X.S.; Sun, H.; Cao, L.; Reynolds, A.C.: A Physics-Based Data-Driven Numerical Model for Reservoir History Matching and Prediction with a Field Application – paper SPE 173213, SPE Reservoir Simulation Symposium, 23-25 February 2015, The Woodlands, Texas, USA. Download (members only).
  17. Emerick, A.A. and Reynolds, A.C.: History-Matching Production and Seismic Data in a Real Field Case Using the Ensemble Smoother with Multiple Data Assimilation – paper SPE 163675, SPE Reservoir Simulation Symposium, 18-20 February 2013, The Woodlands, Texas, USA. Download (members only).
  18. Oliveira, D.F. and Reynolds, A.C.: An Adaptive Hierarchical Algorithm for Estimation of Optimal Well Controls – paper SPE 163645, SPE Reservoir Simulation Symposium, 18-20 February 2013, The Woodlands, Texas, USA. Download (members only).
  19. Le, D.H. and Reynolds, A.C.: Estimation of Mutual Information and Conditional Entropy for Surveillance Optimization – paper SPE 163638, SPE Reservoir Simulation Symposium, 18-20 February 2013, The Woodlands, Texas, USA. Download (members only).
  20. Xia, Y. and Reynolds, A.C.: An Optimization Algorithm Based on Combining Finite-Difference Approximations and Stochastic Gradients – paper SPE 163613, SPE Reservoir Simulation Symposium, 18-20 February 2013, The Woodlands, Texas, USA. Download (members only).
  21. Le, D.H. and Reynolds, A.C.: Optimal Choice of a Surveillance Operation Using Information Theory, Proceedings of the 13th European Conference on the Mathematics of Oil Recovery, Biarritz, France, 10-13 September 2012. Download (members only).
  22. Do, S.T., Forouzanfar, F. and Reynolds, A.C.: Estimation of Optimal Well Controls Using the Augmented Lagrangian Function with Approximate Derivatives – 2012 IFAC Workshop on Automatic Control in Offshore Oil and Gas Production, 31 May – 1 June 2012, Norwegian University of Science and Technology, Norway. Download (members only).
  23. Emerick, A.A. and Reynolds, A.C.: Combining the Ensemble Kalman Filter with Markov Chain Monte Carlo for Improved History Matching and Uncertainty Characterization – paper SPE 141336, SPE Reservoir Simulation Symposium, 21-23 February 2011, The Woodlands, Texas, USA. Download (members only).
  24. Zhao, H.; Chen, C.; Do, S.T.; Li, G. and Reynolds, A.C.: Maximization of a Dynamic Quadratic Interpolation Model for Production Optimization – paper SPE 141317, SPE Reservoir Simulation Symposium, 21-23 February 2011, The Woodlands, Texas, USA. Download (members only).
  25. Chen, C.; Li, G. and Reynolds, A.C.: Robust Constrained Optimization of Short and Long-Term NPV for Closed-Loop Reservoir Management – paper SPE 141314, SPE Reservoir Simulation Symposium, 21-23 February 2011, The Woodlands, Texas, USA. Download (members only).
  26. Emerick, A.A. and Reynolds, A.C.: History Matching a Field Case Using the Ensemble Kalman Filter with Covariance Localization – paper SPE 141216, SPE Reservoir Simulation Symposium, 21-23 February 2011, The Woodlands, Texas, USA. Download (members only).
  27. Forouzanfar, F.; Li, G. and Reynolds, A.C.: A Two-stage Well Placement Optimization Method Based on Adjoint Gradient – paper SPE 135304, SPE Annual Technical Conference and Exhibition held in Florence, Italy, 19-22 September 2010. Download (members only).
  28. Coutinho, E.; Emerick, A.A.; Li, G. and Reynolds, A.C.: Conditioning Multilayered Geologic Models to Well-Test and Production-Logging Data Using the Ensemble Kalman Filter – paper SPE 134542, SPE Annual Technical Conference and Exhibition held in Florence, Italy, 19-22 September 2010. Download (members only).
  29. Emerick, A.A. and Reynolds, A.C.: EnKF-MCMC – paper SPE 131375, SPE EUROPEC/EAGE Annual Conference and Exhibition, Barcelona, Spain, 14-17 June 2010. Download (members only).
  30. Li, G.; Han, M.; Banerjee, R. and Reynolds, A.C.: Integration of Well Test Pressure Data Into Heterogeneous Geological Reservoir Models, paper SPE 124055, Proceedings of the 2009 SPE Annual Technical Conference and Exhibition. Download (members only).
  31. Tavakoli, R. and Reynolds, A.C.: History Matching with Parameterization Based on the SVD of a Dimensionless Sensitivity Matrix, paper SPE 118952, Proceedings of the 2009 SPE Reservoir Simulation Symposium. Download (members only).
  32. Wang, Y.; Li, G. and Reynolds, A.C.: Estimation of Depths of Fluid Contacts by History Matching Using Iterative Ensemble Kalman Smoothers, paper SPE 119056, Proceedings of the 2009 SPE Reservoir Simulation Symposium. Download (members only).
  33. Zhao, Y.; Reynolds, A.C. and Li, G.: Generating Facies Maps by Assimilating Production Data and Seismic Data With the Ensemble Kalman Filter, paper SPE 113990, Proceedings of the 16th SPE Improved Oil Recovery Symposium. Download (members only).
  34. Wang, C.; Li, G. and Reynolds, A.C.: Optimal Well Placement for Production Optimization, paper SPE 111154, Proceedings of the 2007 SPE Eastern Regional Meeting. Download (members only).
  35. Thulin, K.; Li, G.; Aanonsen, S.I. and Reynolds, A.C.: Estimation of Initial Fluid Contacts by Assimilation of Production Data with EnKF, paper SPE 109975, Proceedings of the 2007 SPE Annual Technical Conference and Exhibition. Download (members only).
  36. Li, G. and Reynolds, A.C.: An Iterative Ensemble Kalman filter for Data Assimilation, paper SPE 109808, Proceedings of the 2007 SPE Annual Technical Conference and Exhibition. Download (members only).
  37. Wang, C.; Li, G. and Reynolds, A.C.: Production Optimization in Closed-loop Reservoir Management, paper SPE 109805, Proceedings of the 2007 SPE Annual Technical Conference and Exhibition. Download (members only).
  38. Boughrara A.A. and Reynolds, A.C.: Practical Analysis of Injection/Falloff Data of Horizontal Wells, paper SPE 109799, Proceedings of the 2007 SPE Annual Technical Conference and Exhibition. Download (members only).
  39. Eydinov, D.; Gao, G.; Li, G. and Reynolds, A.C.: Simultaneous Estimation of Relative Permeability and Porosity/Permeability Fields by History Matching Production Data, Proceedings of the 2007 Canadian International Petroleum Conference June, 2007. Download (members only).
  40. Li, G., Gao, G. and Reynolds, A.C.: Uncertainty quantification of relative permeability and porosity/permeability fields with RML method, Proceedings of China special EOR Forum , 2006. Download (members only).
  41. Zhao, Y. and Reynolds, A.C.: Estimation and removal of tidal effects from pressure data, paper SPE 103253, Proceedings of the SPE ATCE, San Antonio, 24-27 Sept 2006. Download (members only).
  42. Chen, S.; Li, G. and Reynolds, A.C.: Analytical solution for injection-falloff-production test, paper SPE 103271, Proceedings of the SPE ATCE, San Antonio, 24-27 Sept 2006. Download (members only).
  43. Zhao, Y.; Li, G. and Reynolds, A.C.: Characterizing Data Measurement Errors with the EM Algorithm, Proceedings of the 10th European Conference on the Mathematics of Oil Recovery, Amsterdam, 4-7 Sept 2006. Download (members only).
  44. Reynolds, A.C.; Zafari, M. and Li, G.: Iterative Forms of the Ensemble Kalman Filter, Proceedings of the 10th European Conference on the Mathematics of Oil Recovery, Amsterdam, 4-7 Sept 2006. Download (members only).
  45. Chen, S.; Li, G.;  Peres, A.M.M. and Reynolds, A.C.:  A Well Test for In-Situ Determination of Relative Permeability Curves, paper SPE 96414, Proceedings of the 2005 SPE Annual Technical Conference and Exhibition. Download (members only).
  46. Zafari, M. and Reynolds, A.C.: Assessing the Uncertainty in Reservoir Description and Performance Predictions With the Ensemble Kalman Filter , paper SPE 95750 , Proceedings of the 2005 SPE Annual Technical Conference and Exhibition. Download (members only).
  47. Gao, G.; Zafari, M. and Reynolds, A.C.: The Tengiz Field History Matching Problem Revisited, paper SPE 90896, Proceedings of the 2004 SPE Annual Technical Conference and Exhibition. Download (members only).
  48. Liu, N. and Oliver, D.S.: Automatic History Matching of Geologic Facies, SPE 84594, 2003 SPE ATCE , Denver, 4-7 October. Download (members only).
  49. Dong, Y. and Oliver, D.S.: Quantitative Use of 4D Seismic Data for Reservoir Description, SPE 84571, 2003 SPE ATCE , Denver, 4-7 October. Download (members only).
  50. Liu, N. and Oliver, D.S.: Conditional Simulation of Truncated Random Fields Using Gradient Methods, presented at the 2003 IAMG annual conference, 7-12 September, Portsmouth, UK. Download (members only).
  51. Zhang, F.; Skjervheim, J. A. and Reynolds, A.C.: An Automatic History Matching Example, Proceedings of the EAGE 65th Conference and Exhibition, Stavanger, Norway, June 2003. Download (members only).
  52. Zhang, F. and Reynolds, A.C.: Optimization Algorithms for Automatic History Matching of Production Data, 8th European Conference on the Mathematics of Oil Recovery, Freiberg, Germany, 3-6 September 2002. Download (members only).
  53. Liu, N.; Betancourt, S. and Oliver, D.S.: Assessment of Uncertainty Assessment Methods, SPE 71624, presented at the 2001 SPE Annual Technical Conference. Download (members only).

OTHER REPORTS, 2001-2004

  1. Final Report to DOE Project: Mapping Reservoir Properties and Facies Through Integration of Static and Dynamic Data, 2004. Download
  2. Annual Report to DOE Project, 2003. Download
  3. Annual Report to DOE Project, 2002. Download
  4. Annual Report to DOE Project, 2001. Download