Torres-Verdín, Carlos - Department of Petroleum and Geosystems Engineering, University of Texas at Austin

• IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, VOL. 44, NO. 9, SEPTEMBER 2006 2445 Efficient Numerical Simulation of Axisymmetric
• AVA simultaneous inversion of partially stacked seismic amplitude data for the spatial delineation of lithology and fluid units of deepwater
• Efficient and Accurate Estimation of Permeability and Permeability Anisotropy from Straddle-Packer Formation Tester Measurements Using the Physics of Two-Phase
• Copyright 2005, Society of Petroleum Engineers This paper was prepared for presentation at the 2005 SPE Annual Technical Conference and
• Copyright 2007, Society of Petroleum Engineers This paper was prepared for presentation at the 2007 SPE Annual Technical Conference and
• hp-Adaptive Multiphysics Finite Element Simulation of LWD Borehole Sonic Waveforms Pawel J. Matuszyk, University of Texas at Austin, on leave from AGH University of Science and Technology,
• Estimation of dynamic petrophysical properties of water-bearing sands invaded with oil-base mud from multi-physics borehole geophysical measurements
• Copyright 2004, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the SPE Annual Technical Conference and
• Annual Logging Symposium, June 19-23, 2010 JOINT PROCESSING OF FORWARD AND BACKWARD EXTENDED
• Annual Logging Symposium, June 19-23, 2010 IMPROVED ESTIMATION OF MINERAL
• Annual Logging Symposium, June 3-6, 2007 INFLUENCE OF PETROPHYSICAL AND FLUID PROPERTIES ON
• A study to assess the value of post-stack seismic amplitude data in forecasting fluid production from a Gulf-of-Mexico reservoir
• Numerical Simulation of 3D EM Borehole Measurements Using an hp-Adaptive Goal-Oriented Finite Element Formulation
• J. Parallel Distrib. Comput. 70 (2010) 270281 Contents lists available at ScienceDirect
• Numerical Simulation of Mud-Filtrate Invasion in Horizontal Wells and Sensitivity Analysis of Array Induction Tools1
• An extended Krylov subspace method to simulate single-phase fluid flow phenomena in axisymmetric
• Random-walk technique for simulating NMR measurements and 2D NMR maps of porous media with relaxing and
• UNCORRECTED 2 Random-walk technique for simulating NMR measurements
• Annual Logging Symposium, June 3-6, 2007 COMBINED INVERSION OF BOREHOLE RESISTIVITY AND SONIC
• Finite-difference simulation of borehole EM logging measurements in 3D anisotropic subsurface media using coupled potentials
• Numerical simulation of borehole acoustic logging in the frequency and time domains with hp-adaptive finite elements
• CONCURRENCY AND COMPUTATION: PRACTICE AND EXPERIENCE Concurrency Computat.: Pract. Exper. 2005; 17:13651385
• Annual Logging Symposium, June 19-23, 2010 QUANTITATIVE INTERPRETATION OF PULSED NEUTRON
• Simulation of triaxial induction measurements in dipping, invaded, and anisotropic formations using a Fourier series
• Fourier Series Expansion in a Non-Orthogonal System of Coordinates for the Simulation of
• A Nonlinear Approximation for the Pressure Behavior of Heterogeneous Fikri J. Kuchuk, SPE, Schlumberger Technical Services,lnc., P.O. Box 9261, Dubai, UAE; Tarek M. Habashy
• Experimental Validation of Pore-Level Calculations of Static and Dynamic Petrophysical Properties of Clastic Rocks
• Annual Logging Symposium, May 25-28, 2008 PREDICTION OF FORMATION-TESTER FLUID-SAMPLE QUALITY IN
• Feasibility study for 2D frequency-dependent electromagnetic sensing through casing
• Finite-difference simulation of borehole EM measurements in 3D anisotropic media using coupled scalar-vector potentials
• Seismic Facies Identification and Classification Using Simple Statistics A. John, L.W. Lake, C. Torres-Verdin, and S. Srinivasan, The University of Texas at Austin
• Comparison of NMR simulations of porous media derived from analytical and voxelized representations
• Simulation of Borehole Resistivity Tools Through Metal Casing at Different Frequencies Using a Goal
• XVIII International Conference on Water Resources J. Carrera (Ed)
• Copyright 2006, Society of Petroleum Engineers This paper was prepared for presentation at the 2006 SPE Annual Technical Conference and
• Copyright 2002, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the SPE Annual Technical Conference and
• Inverse Problems 16 (2000) 13431356. Printed in the UK PII: S0266-5611(00)13702-5 Bayesian inversion of DC electrical measurements with
• PETROPHYSICS 247August 2010 Field Examples of the Combined Petrophysical Inversion of Gamma-ray,
• Linear iterative refinement method for the rapid simulation of borehole nuclear measurements: Part 2 --High-angle and horizontal wells
• Simulation of eccentricity effects on short-and long-normal logging measurements using a Fourier-hp-finite-element method*
• Linear iterative refinement method for the rapid simulation of borehole nuclear measurements: Part I --Vertical wells
• 1D subsurface electromagnetic fields excited by energized steel casing
• Quantitative comparison of processes of oil-and water-based mud-filtrate invasion and corresponding effects on borehole resistivity measurements
• Estimation of in-situ petrophysical properties from wireline formation tester and induction logging measurements: A joint inversion approach
• PIERS ONLINE, VOL. 4, NO. 5, 2008 551 A Parallel, Fourier Finite-Element Formulation with an Iterative
• Comput Geosci (2008) 12:8389 DOI 10.1007/s10596-007-9061-y
• Fourier series expansion in a non-orthogonal system of coordinates for the simulation of 3D-DC borehole resistivity measurements
• Object-oriented approach for the pore-scale simulation of DC electrical conductivity of two-phase saturated porous media
• Effects of Petrophysical Properties on Array-Induction Measurements Acquired in the Presence of Oil-Base Mud-Filtrate Invasion1
• A Two-Dimensional Self-Adaptive hp Finite Element Method for the Characterization of
• Spatial Sensitivity Functions of Two-Phase Formation-Tester Measurements Acquired in Vertical Wells1
• Effects of Geometrical, Environmental, and Petrophysical Parameters on Multi-Component Induction Measurements Acquired in High-Angle Wells1
• A self-adaptive goal-oriented hp finite element method with electromagnetic applications. Part II: Electrodynamics
• 2D pore-scale simulation of wide-band electromagnetic dispersion of saturated rocks
• Petrophysical inversion of borehole array-induction logs: Part I --Numerical examples
• INSTITUTE OF PHYSICS PUBLISHING JOURNAL OF GEOPHYSICS AND ENGINEERING J. Geophys. Eng. 3 (2006) 177193 doi:10.1088/1742-2132/3/2/009
• IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, VOL. 54, NO. 4, APRIL 2006 1243 High-Order Generalized Extended Born
• On the value of 3D seismic amplitude data to reduce uncertainty in the forecast of reservoir production
• 14 PETROPHYSICS February 2005 The Influence of Water-Base Mud Properties and Petrophysical
• Estimation of axisymmetric spatial distributions of permeability and porosity from pressure-transient data acquired with
• RadioScience,Volume36, Number6, Pages1287-1306,November-December2001 Rapid numerical simulation of axisymmetricsingle-well
• Radio Science, Volume 31, Number 1, Pages41--49,January-February 1996 Asymptotic ray theory for transient diffusive
• EEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION,VOL. 43. NO. 4, APRIL 1995 405 Two-step Linear Inversion of
• GEOPHYSICS, VOL. 57, NO. 4 (APRIL 19%): P. 603-h??. 14 FIGS. Principles of spatial surface electric field filtering in
• Annual Logging Symposium, May 25-28, 2008 ADVANTAGES IN JOINT-INVERSIONS OF RESISTIVITY AND
• Estimation of Dry-Rock Elastic Moduli Based on the Simulation of Mud-Filtrate Invasion Effects on Borehole Acoustic Logs
• Simulation of borehole acoustic measurements in axisymmetric media with hp-adaptive finite ele-Christian Michler, Leszek Demkowicz, and Carlos Torres-Verdin, University of Texas at Austin
• Fast 2D inversion of large borehole EM induction data sets with a domain-decomposition method Gong Li Wang, Carlos Torres-Verdin, Jesus M. Salazar, and Benjamin Voss, The University of Texas at Austin
• Annual Logging Symposium, June 3-6, 2007 FIELD EXAMPLES OF HISTORY MATCHING OF FORMATION-
• Annual Logging Symposium, June 3-6, 2007 RAPID SIMULATION OF BOREHOLE NUCLEAR MEASUREMENTS
• Annual Logging Symposium, June 3-6, 2007 COMBINED SIMULATION AND INVERSION OF SP AND RESISTIVITY
• Annual Logging Symposium, June 3-6, 2007 QUANTITATIVE STUDIES OF RELATIVE DIP ANGLE AND BED -
• Annual Logging Symposium, June 3-6, 2007 INTERPRETATION OF FREQUENCY-DEPENDENT DUAL-
• Parallel hp-Finite Element Simulations of 3D Resistivity Logging Instruments
• Annual Logging Symposium, June 4-7, 2006 ASSESSMENT OF SHOULDER-BED, INVASION, AND LAMINATION
• Numerical simulation of dual-laterolog measurements in the presence of dipping, anisotropic, and invaded rock formations
• Annual Logging Symposium, June 26-29, 2005 INFLUENCE OF OIL SATURATION AND WETTABILITY
• Annual Meeting 2004 Prestack seismic data reduces uncertainty in the appraisal of dynamic reservoir behavior
• Copyright 2004, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the SPE Annual Technical Conference and
• EAGE 65th Conference & Exhibition --Stavanger, Norway, 2 -5 June 2003 Estimation of elastic properties of rock formations from surface seismic data is a subject of
• 3DEMIII Workshop, February 2003, Adelaide. Efficient 3-D Electromagnetic Modeling in the Presence of
• High-resolution geostatistical inversion of a seismic data set acquired in a Gulf of Mexico gas reservoir.
• Nuclear Magnetic Resonance (NMR) is the only logging technique available to estimate pore-size
• Rapid, Interactive Assessment of Petrophysical and Geometrical Effects on Density and Neutron Logs Acquired in Vertical and Deviated Wells
• Numerical Investigation of Oil -Base-Mud Contamination in Condensates: From Cleanup to Sample Quality
• Annual Logging Symposium, June 21-24, 2009 Wireline and While-Drilling Formation-Tester Sampling with Oval, Focused,
• Annual Logging Symposium, June 21-24, 2009 IMPROVING THE ASSESSMENT OF RESIDUAL HYDROCARBON
• Annual Logging Symposium, June 21-24, 2009 PORE-LEVEL STUDY OF GRAIN-SHAPE EFFECTS ON
• Annual Logging Symposium, June 2124, 2009 3D NUMERICAL SIMULATION OF BOREHOLE SONIC MEASUREMENTS
• Annual Logging Symposium, June 21-24, 2009 INVERSION OF SECTOR-BASED LWD DENSITY MEASUREMENTS
• Annual Logging Symposium, June 21-24, 2009 TIME-LAPSE VARIATIONS OF MULTI-COMPONENT ELECTRICAL
• Annual Logging Symposium, June 21-24, 2009 FIELD EXAMPLES OF THE COMBINED PETROPHYSICAL
• Annual Logging Symposium, June 21-24, 2009 PORE-SCALE SIMULATION OF KHZ-GHZ ELECTROMAGNETIC
• Annual Logging Symposium, June 21-24, 2009 COMMON STRATIGRAPHIC FRAMEWORK TO SIMULATE
• Modeling Mud-Filtrate Invasion Effects on Resistivity Logs to Estimate Permeability of Vuggy and Fractured Carbonate Formations
• Meeting Location: Four Seasons Hotel-Austin
• Pore-Scale Analysis of the Waxman-Smits Shaly-Sand Conductivity Model1 Guodong Jin2
• SIAM J. APPL. MATH. c 2006 Society for Industrial and Applied Mathematics Vol. 66, No. 6, pp. 20852106
• History Matching and Sensitivity Analysis of Probe-Type Formation-Tester Measurements Acquired in the Presence of
• Simulation of DC dual-laterolog measurements in complex formations: A Fourier-series approach with nonorthogonal
• EAGE 64th Conference & Exhibition --Florence, Italy, 27 -30 May 2002 We carry out an inversion study to appraise the ability of time-lapse 3D seismic data to infer
• SIMULATION OF RESISTIVITY LOGGING-WHILE-DRILLING (LWD) MEASUREMENTS USING A SELF-ADAPTIVE
• Joint Radial Inversion of Resistivity and Sonic Logs to Estimate In-Situ Petrophysical and Elastic Properties of Formations
• We develop a procedure to simulate and detect the spatial distribution of mud-filtrate invasion in the
• Finite-difference modeling of borehole induction data in the presence of 3D electrical conductivity anisotropy using coupled scattered potentials
• Copyright 2004, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the SPE Annual Technical Conference and
• Copyright 2006, Society of Petroleum Engineers This paper was prepared for presentation at the 2006 SPE Annual Technical Conference and
• A multi-physics, integrated approach to formation evaluation using borehole geophysical measurements and 3D seismic data
• Annual Logging Symposium, June 19-23, 2010 Effects of Highly Laminated Reservoirs on the Performance of Wireline and
• Simulation of Dual-Laterolog Measurements in Dipping, Invaded, and Anisotropic Formations Using a Fourier Series Expansion in a Non-Orthogonal System of Coordinates
• Fast 2D inversion of large borehole EM induction data sets with an efficient Frchet-derivative approximation
• March-April 2004 PETROPHYSICS 141 Assessment of In-Situ Hydrocarbon Saturation in the Presence of Deep
• Annual Logging Symposium, June 19-23, 2010 CONSTRUCTION OF RELIABLE STATIC AND DYNAMIC MULTI-LAYER
• Progress In Electromagnetics Research B, Vol. 25, 93111, 2010 DATA-ADAPTIVE RESOLUTION METHOD FOR THE
• SIAM J. SCI. COMPUT. c XXXX Society for Industrial and Applied Mathematics Vol. 0, No. 0, pp. 000000
• Copyright 2006, Society of Petroleum Engineers This paper was prepared for presentation at the 2006 SPE Annual Technical Conference and
• GEOPHYSICS, VOL. 69, NO. 5 (SEPTEMBER-OCTOBER 2004); P. 11731191, 11 FIGS., 2 TABLES. 10.1190/1.1801935
• Noname manuscript No. (will be inserted by the editor)
• Assessing the value of 3D post-stack seismic amplitude data in forecasting fluid production from a deepwater Gulf-of-Mexico
• ForPeerReview COMBINED SIMULATION AND INVERSION OF SP AND RESISTIVITY LOGS
• EAGE 66th Conference & Exhibition --Paris, France, 7 -10 June 2004 This paper describes a study undertaken to appraise spatially complex hydrocarbon reservoir
• Prediction of Formation-Tester Fluid-Sample Quality in Highly-Deviated Wells
• Sensitivity study of borehole-to-surface and crosswell electromagnetic measurements acquired with energized steel casing to water
• Sensitivity analysis of data-related factors controlling AVA simultaneous inversion of partially stacked seismic amplitude data: Application
• Radio Science, Volume 29, Number 4, Pages1051-1079,July-August 1994 Rapid 2.5-dimensional forward modeling and inversion
• Geostatistical Inversion for the Lateral Delineation of Thin-Layer Hydrocarbon Reservoirs: A Case Study in San Jorge Basin, Argentina.
• This article was published in an Elsevier journal. The attached copy is furnished to the author for non-commercial research and
• Fast simulation of triaxial borehole induction measurements acquired in axially symmetrical and transversely isotropic media
• Efficient Numerical Simulation of Axisymmetric Electromagnetic Induction Data using a High-Order Generalized Extended Born
• Petrophysical inversion of borehole array-induction logs: Part II --Field data examples
• Geophysical Prospecting, 2006, 54, 239259 Enforcing smoothness and assessing uncertainty in non-linear
• Extrapolation of Flow Units away from Wells with 3D Pre-Stack Seismic Amplitude Data: Field Example1
• PML ENHANCED WITH A SELF-ADAPTIVE GOAL-ORIENTED HP FINITE-ELEMENT METHOD: SIMULATION OF
• Author's personal copy Numerical investigation of oil-base mud contamination in condensates: From
• Annual Logging Symposium, June 3-6, 2007 JOINT INVERSION OF DENSITY AND RESISTIVITY LOGS FOR THE
• GEOPHYSICS, VOL. 65, NO. 6 (NOVEMBER-DECEMBER 2000); P. 17331745, 14 FIGS. A dual-grid nonlinear inversion technique with applications
• Copyright 2007, Society of Petroleum Engineers This paper was prepared for presentation at the 2007 SPE Annual Technical Conference and
• Reconciling NMR Measurements and Numerical Simulations: Assessment of Temperature and Diffusive Coupling
• Using time-lapse seismic amplitude data to detect variations of pore pressure and fluid saturation due to oil displacement by water: a numerical study based on one-dimensional
• Pore-Level Analysis of the Relationship Between Porosity, Irreducible Water Saturation, and Permeability of Clastic Rocks
• INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING Int. J. Numer. Meth. Engng 2006; 65:12691309
• A high-order generalized extended Born approximation to simulate electromagnetic geophysical measurements in inhomogeneous and anisotropic media
• Annual Logging Symposium, June 21-24, 2009 HISTORY MATCHING OF MULTIPHASE-FLOW FORMATION-
• PETROPHYSICS, VOL. 50, NO. 5 (OCTOBER 2009); Page ?; 20 Figures, 5 Tables October 2009 PETROPHYSICS Page
• A NEW PORE-SCALE FRAMEWORK FOR THE SIMULATION AND INTERPRETATION
• GEOPHYSICS. VOL. 57, NO. 4 (APRIL 1992): P. 587-hO2, 7 FIGS.. 4 TABLES Implications of the Born approximation for the magnetotelluric
• ForPeerReview AN OBJECT-ORIENTED APPROACH FOR THE PORE-SCALE SIMULATION OF
• Pre-stack inversion of a Gulf of Thailand OBC data set Indrajit G. Roy, Mrinal K. Sen, Carlos Torres-Verdin, and Omar J. Varela
• A Comparison Between Geostatistical Inversion and Conventional Geostatistical Simulation Practices for Reservoir Delineation
• Copyright 2004, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the SPE Annual Technical Conference and
• Combined simulation and inversion of SP and resistivity logs for the estimation of connate-water resistivity and Archie's cementation exponent
• Copyright 2007, Society of Petroleum Engineers This paper was prepared for presentation at the 2007 SPE Annual Technical Conference and
• Joint stochastic inversion of 3D pre-stack seismic data and well logs for high-resolution reservoir characterization and petrophysical modeling: application to deepwater hydrocarbon
• An algorithm for transferring 2D arbitrary hp-refined finite element axially symmetric meshes to three dimensions
• APCOM'07 in conjunction with EPMESC XI, December 3-6, 2007, Kyoto, JAPAN Efficient Sequential and Parallel Solvers for hp Finite Element
• Monte Carlo Modeling of Nuclear Measurements in Vertical and Horizontal Wells in the Presence of Mud-Filtrate Invasion and Salt Mixing1
• This year's annual technical meeting will be held on Monday and Tuesday. Wednesday is optional and is intended for software demonstrations. We will be at a new meeting location with exceptional food and, as usual, excellent
• Annual Logging Symposium, May 14-18, 2011 RAPID MODELING OF LWD NUCLEAR MEASUREMENTS ACQUIRED
• Invasion Correction of Acoustic Logs in a Gas Reservoir Shihong Chi*, Jianghui Wu, and Carlos Torres-Verdin, The University of Texas at Austin
• Numerical Simulation of Mud-Filtrate Invasion in Deviated Wells
• Comput Geosci (2011) 15:5367 DOI 10.1007/s10596-010-9195-1
• GEOPHYSICS, VOL. 69, NO. 6 (NOVEMBER-DECEMBER 2004); P. 14701477, 9 FIGS. 10.1190/1.1836820
• SPWLA 52"" Annual Logging Symposium, May 14-18,2011 PORE-SCALE QUANTIFICATION OF APPARENT PERMEABILITY
• Quantitative interpretation of pulsed neutron capture logs: Part 2 --Inversion of measurements in thinly bedded
• Annual Logging Symposium, June 26-29, 2005 JOINT STOCHASTIC INVERSION OF PETROPHYSICAL LOGS AND 3D
• Annual Logging Symposium, May 14-18, 2011 QUANTITATIVE METHOD FOR ESTIMATING TOTAL ORGANIC
• Estimation of capillary pressure and relative permeability from formation-tester measurements using Design of Experiment and data-weighing inversion
• Annual Logging Symposium, May 14-18, 2011 UMERICAL SIMULATIO A D I TERPRETATIO OF
• Efficient 2D Bayesian inversion of borehole resistivity measurements Qinshan Yang*
• Assessment of Delaware and Groningen effects on dual-laterolog measurements with a self-adaptive hp finite-element method
• Quantitative interpretation of pulsed neutron capture logs: Part 1 --Fast numerical simulation
• Synthesis of Multipole Acoustic Logging Measurements Using the Generalized Reflection/Transmission Matrices Method
• Annual Logging Symposium, May 25-28, 2008 COMPARISON OF WIRELINE FORMATION-TESTER SAMPLING
• Copyright 2000, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the 2000 SPE Annual Technical Conference and
• hp-Adaptive Multi-Physics Finite-Element Simulation of Wireline Borehole Sonic Waveforms Pawel J. Matuszyk and Carlos Torres-Verdin, University of Texas at Austin
• Annual Logging Symposium, May 14-18, 2011 QUANTIFYING WETTABILITY ALTERATION DURING OIL-BASE
• Joint Inversion of Reservoir Production Measurements and 3D Pre-Stack Seismic Data: Proof Carlos Torres-Verdn, Zhan Wu, Omar J. Varela, Mrinal K. Sen, and Indrajit G. Roy.
• Fast 3D Modeling of Borehole Induction Measurements in Dipping and Anisotropic Formations using a Novel Approximation Technique
• Copyright 2001, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the 2001 SPE Annual Technical Conference and
• Simulation of wireline sonic logging measurements acquired with BoreholeEccentered tools using a high-order adaptive
• Simulation of borehole sonic waveforms in dipping, anisotropic, and invaded formations
• Progress In Electromagnetics Research B, Vol. 29, 105138, 2011 A MULTIPLICATIVE REGULARIZED GAUSS-NEWTON
• PETROPHYSICS 217June 2011 Assessment of Residual Hydrocarbon Saturation with the Combined