Research Objectives:

Integration

Research Spotlight:

Software Modules

Research Group:

Faculty - Staff - Students

Conference Proceedings

2011

Matuszyk, P., and Torres-Verdín, C., 2011, hp-Adaptive multiphysics finite-element simulation of wireline borehole sonic waveforms (Expanded Abstract): Society of Exploration Geophysicists (SEG) 81th Ann. Internat. Mtg., San Antonio, TX, September 18-23. PDF

Yang, Q., and Torres-Verdín, C., 2011, Efficient 2D Bayesian inversion of borehole resistivity measurements (Expanded Abstract): Society of Exploration Geophysicists (SEG) 81th Ann. Internat. Mtg., San Antonio, TX, September 18-23. PDF

Heidari, Z., Torres-Verdín, C.., and Preeg, W. E., 2011, Quantitative method for estimating total organic carbon and porosity, and for diagnosing mineral constituents from well logs in shale-gas formations (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 52nd Ann. Logging Symposium, Colorado Springs, Colorado, May 14-18. PDF

Ijasan, O, Torres-Verdín, C.., Preeg, W. E., and Mendoza, A., 2011, Rapid modeling of LWD nuclear measurements acquired in high-angle and horizontal wells for improved petrophysical and geometrical interpretation (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 52nd Ann. Logging Symposium, Colorado Springs, Colorado, May 14-18. PDF

Frooqnia, A., A-Pour, R., Torres-Verdín, C.., and Sepehrnoori, K, 2011, Numerical simulation and interpretation of production logging measurements using a coupled wellbore-reservoir model (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 52nd Ann. Logging Symposium, Colorado Springs, Colorado, May 14-18. PDF

Marouby, P., Heidari, Z., and Torres-Verdín, C.., 2011, Assessment of in-situ elastic properties of hydrocarbon-bearing shale with the joint quantitative interpretation of sonic, nuclear, and resistivity logs (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 52nd Ann. Logging Symposium, Colorado Springs, Colorado, May 14-18. PDF

Pour, R., Torres-Verdín, C.., and Sepehrnoori, K., 2011, Quantifying wettability alteration during oil-base mud-filtrate invasion and corresponding effects on resistivity logs (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 52nd Ann. Logging Symposium, Colorado Springs, Colorado, May 14-18. PDF

Shabro, V., Torres-Verdín, C.., and Javadpour, F., 2011, Pore-scale quantification of apparent permeability and electrical resistivity of hydrocarbon-bearing shale in the presence of gas desorption (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 52nd Ann. Logging Symposium, Colorado Springs, Colorado, May 14-18. PDF

Shabro, V., Torres-Verdín, C., and Javadpour, F., 2011, Numerical simulation of shale-gas production: from pore-scale modeling of slip-flow, Knudsen diffusion, and Langmuir desorption to reservoir modeling of compressible fluid (Expanded Abstract): Society of Petroleum Engineers (SPE) 2011 North American Unconventional Gas Conference and Exhibition, The Woodlands, TX, June 12-16. PDF

2010

Matuszyk, P., Torres-Verdín, C., and Demkowicz, L., 2010, hp-Adaptive multiphysics finite-element simulation of LWD borehole sonic waveforms (Expanded Abstract): Society of Exploration Geophysicists (SEG), 80th Ann. Internat. Mtg., Denver, CO, October 17-22. PDF
Heidari, Z., and Torres-Verdín, C., 2010, Estimation of dynamic petrophysical properties of water-bearing sands invaded with oil-base mud from multi-physics borehole geophysical measurements (Expanded Abstract): Society of Exploration Geophysicists (SEG) 80th Ann. Internat. Mtg., Denver, CO, October 17-22. PDF
Ghandi, A., Torres-Verdín, C.., Voss, B., Gabulle, J., and Seminario, F., 2010, Construction of reliable static and dynamic multi-layer petrophysical models in Camisea gas reservoirs, Peru (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 51st Ann. Logging Symposium, Perth, Australia, June 19-23. PDF
Hadibeik, A., Proett, M., Torres-Verdín, C., and Sepehrnoori, K., 2010, Effects of highly-laminated reservoirs on the performance of wireline and while-drilling formation-tester sampling with oval, focused, and conventional probe types (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 51st Ann. Logging Symposium, Perth, Australia, June 19-23. PDF
Heidari, Z., Torres-Verdín, C.., and Preeg, W. E., 2010, Improved estimation of fluid and mineral volumetric concentrations in thinly-bedded and invaded formations (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 51sh Ann. Logging Symposium, Perth, Australia, June 19-23. PDF
Ma, J., Matuszyk, P. J., Mallan, R. K., Torres-Verdín, C.., and Voss, B., 2010, Joint processing of forward and backward extended Prony and weighted spectral semblance methods for robust extraction of velocity dispersion data (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 51sh Ann. Logging Symposium, Perth, Australia, June 19-23. PDF
Mimoun, J., Torres-Verdín, C.., and Preeg, W. E., 2010, Quantitative interpretation of pulsed neutron capture logs in thinly-bedded formations (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 51st Ann. Logging Symposium, Perth, Australia, June 19-23. PDF
Sanchez-Ramirez, J., Wolf, D., Torres-Verdín, C., Mendoza, A., and Wang, G. L., 2010, Synthetic and field examples of the Bayesian stochastic inversion of gamma-ray, density, and resistivity logs (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 51st Ann. Logging Symposium, Perth, Australia, June 19-23. PDF
Shabro, V., Prodanovic, M., Arns, C. H., Bryant, S. L., Torres-Verdín, C., and Knackstedt, M. A., 2010, Pore scale modeling of two-phase flow (Expanded Abstract): XVIII International Conference on Water Resources – CMWR 2010, Barcelona, Spain, June 21 – 24. PDF

2009

Heidari, Z., Torres-Verdín, C., Mendoza, A., Ijasan, O., Voss, B., and Preeg, W., 2009, Rapid, interactive assessment of petrophysical and geometrical effects on density and neutron logs acquired in vertical and deviated wells (Expanded Abstract): Society of Petroleum Engineers (SPE) 2009 Ann. Internat. Mtg., New Orleans, Louisiana, October 4-7. PDF
Malik, M., Dindoruk, B., Elshahawi, H., and Torres-Verdín, C., 2009, Numerical investigation of oil-base-mud contamination for condensates and oils: from cleanup to sample quality (Expanded Abstract): Society of Petroleum Engineers (SPE) 2009 Ann. Internat. Mtg., New Orleans, Louisiana, October 4-7. PDF
Mallan, R. K., Ma, J., Torres-Verdín, C., and Wang, G., L. 2009, Joint radial inversion of resistivity and sonic logs to estimate in-situ petrophysical and elastic properties of formations (Expanded Abstract): Society of Petroleum Engineers (SPE) 2009 Ann. Internat. Mtg., New Orleans, Louisiana, October 4-7. PDF
Angeles, R., Torres-Verdín, C., Sepehrnoori, K., and Elshahawi, H., 2009, History matching of multiphase-flow formation-tester measurements acquired with focused-sampling probes in deviated wells (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 50th Ann. Logging Symposium, The Woodlands, Texas, June 21-24. PDF
Hadibeik, A., Proett, M., Torres-Verdín, C., Sepehrnoori, K., and Angeles, R., 2009, Wireline and while-drilling formation-tester sampling with oval, focused, and conventional probe types in the presence of water- and oil-base mud-filtrate invasion in deviated wells (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 50th Ann. Logging Symposium, The Woodlands, Texas, June 21-24. PDF
Heidari, Z., Torres-Verdín, C., Mendoza, A., and Wang, G. L., 2009, Improving the assessment of residual hydrocarbon saturation with the combined quantitative interpretation of resistivity and nuclear logs (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 50th Ann. Logging Symposium, The Woodlands, Texas, June 21-24. PDF
Jin, G., Torres-Verdín, C., and Lan, C., 2009, Pore-level study of grain-shape effects on petrophysical properties of porous media (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 50th Ann. Logging Symposium, The Woodlands, Texas, June 21-24. PDF
Mallan, R., Ma, J., and Torres-Verdín, C., 2009, 3D numerical simulation of borehole sonic measurements acquired in dipping, anisotropic, and invaded formations (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 50th Ann. Logging Symposium, The Woodlands, Texas, June 21-24. PDF
Mendoza, A., Torres-Verdín, C., Preeg, B., Rasmus, J., and Radtke, R. J.., 2009, Inversion of sector-based LWD density measurements acquired in laminated sequences penetrated by high-angle and horizontal wells (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 50th Ann. Logging Symposium, The Woodlands, Texas, June 21-24. PDF
Moinfar, A., Mallan, R., Torres-Verdín, C., and Angeles, R., 2009, Time-lapse variations of multi-component electrical resistivity measurements acquired in high-angle wells (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 50th Ann. Logging Symposium, The Woodlands, Texas, June 21-24. PDF
Sanchez-Ramirez, J., Torres-Verdín, C., Wang, G. L., Mendoza, A., Wolf, D. Liu, Z.., and Schell, G., 2009, Field examples of the combined petrophysical inversion of gamma-ray, density, and resistivity logs acquired in thinly-bedded clastic rock formations (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 50th Ann. Logging Symposium, The Woodlands, Texas, June 21-24. PDF
Toumelin, E., and Torres-Verdín, C., 2009, Pore-scale simulation of KHz-GHz electromagnetic dispersion of rocks: effects of rock morphology, pore connectivity, and electrical double layers (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 50th Ann. Logging Symposium, The Woodlands, Texas, June 21-24. PDF
Voss, B., Torres-Verdín, C., Gandhi, A., Alabi, B., and Lemkecher, M., 2009, Common stratigraphic framework to simulate well logs and cross-validate static and dynamic petrophysical interpretations (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 50th Ann. Logging Symposium, The Woodlands, Texas, June 21-24. PDF
Miranda, L. J., Torres-Verdín, C., and Lucia, J., 2009, Modeling mud-filtrate invasion effects on resistivity logs to estimate permeability of vuggy and fractured carbonate formations (Expanded Abstract, SPE-121136): Society of Petroleum Engineers (SPE) 2008 EUROPEC Conference, Amsterdam, The Netherlands, June 8-11. PDF

2008

Angeles, R., Hadibeik, A., Torres-Verdín, C., and Sepehrnoori, K., 2008, Synthetic and field examples of the estimation of capillary pressure and relative permeability from formation-tester measurements (Expanded Abstract): Society of Petroleum Engineers (SPE) 2008 Ann. Internat. Mtg., Denver, CO, September 21-24. PDF
Angeles, R., Torres-Verdín, C., and Malik, M., 2008, "Prediction of formation-tester fluid-sample quality in highly-deviated wells" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 49th Ann. Logging Symposium, Edinburgh, Scotland, May 25-28. PDF
Angeles, R., Skolnakorn, J., Antonsen, F., Chandler, A., and Torres-Verdín, C., 2008, "Advantages in joint inversions of resistivity and formation-tester measurements: examples from a Norwegian field" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 49th Ann. Logging Symposium, Edinburgh, Scotland, May 25-28. PDF
Malik, M., Torres-Verdín, C., Sepehrnoori, K., Jackson, R., Weinheber, P., Mullins, O. C., Elshahawi, H., Dindoruk, B., and Hashem, M., 2008, Comparison of wireline formation-tester sampling with focused and conventional probes in the presence of oil-base mud-filtrate invasion (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 49th Ann. Logging Symposium, Edinburgh, Scotland, May 25-28. PDF
Paszynski, M., Pardo, D., and Torres-Verdín, C., 2008, Parallel goal-oriented fully automatic hp adaptive finite element method algorithm with shared data structures, Advances in Structural Engineering and Mechanics (ASEM 2008), Jeju, Korea, May.

Pardo, D., Torres-Verdín, C., Nam, M. J. and Paszynski, M., 2008, A parallel, Fourier finite-element formulation with an iterative solver for the simulation of 3D LWD measurements acquired in deviated wells: Proceedings of the Progress in Electromagnetic Research Symposium (PIERS) 2008 , Boston, Massachusetts, Feb.PDF

Paszynski, M., Pardo, D., Torres-Vardin, C., and Matuszyk, P., 2007, "Efficient sequential and parallel solvers for hp Finite Element Method", APCOM'07 Conference, Kyoto, Japan Dec 3-6. PDF

2007

Jin, G., Torres-Verdín, C., Radaelli, F., and Rossi, E., 2007, "Experimental validation of pore-level calculations of static and dynamic petrophysical properties of clastic rocks" (Expanded Abstract): Society of Petroleum Engineers (SPE) 2007 Ann. Internat. Mtg., Anaheim, CA, November 11-14. PDF
Malik, M., Torres-Verdín, C., and Sepehrnoori, K., 2007, "A dual-grid automatic history matching technique with applications to 3D formation testing in the presence of oil-base muds" (Expanded Abstract): Society of Petroleum Engineers (SPE) 2007 Ann. Internat. Mtg., Anaheim, CA, November 11-14. PDF
Odumosu, T., Torres-Verdín, C., Salazar, J. M., Ma, J., Voss, B., and Wang, G. L., 2007, "Estimation of dry-rock elastic moduli based on the simulation of mud-filtrate invasion effects on borehole acoustic logs" (Expanded Abstract): Society of Petroleum Engineers (SPE) 2007 Ann. Internat. Mtg., Anaheim, CA, November 11-14. PDF
Salazar, J. M., Malik, M., Torres-Verdín, C., Wang, G. L., and Duan, H., 2007, "Fluid density and viscosity effects on borehole resistivity measurements acquired in the presence of oil-based mud and emulsified surfactants" (Expanded Abstract): Society of Petroleum Engineers (SPE) 2007 Ann. Internat. Mtg., Anaheim, CA, November 11-14. PDF
Torskaya, T., Jin, G., and Torres-Verdín, C., 2007, "Pore-level analysis of the relationship between porosity, irreducible water saturation, and permeability of clastic rocks" (Expanded Abstract): Society of Petroleum Engineers (SPE) 2007 Ann. Internat. Mtg., Anaheim, CA, November 11-14. PDF
Michler, C., Demkowicz, L., and Torres-Verdín, C., 2007, "Simulation of borehole acoustic measurements in axisymmetric media with hp-adaptive finite elements" (Expanded Abstract): Society of Exploration Geophysicists (SEG) 77th Ann. Internat. Mtg., San Antonio, TX, September 23-28. PDF
Pardo, D., Torres-Verdín, C., and Paszynski, M., 2007, "Numerical simulation of 3D EM borehole measurements using an hp-adaptive goal-oriented finite-element formulation" (Expanded Abstract): Society of Exploration Geophysicists (SEG) 77th Ann. Internat. Mtg., San Antonio, TX, September 23-28. PDF
Wang, G. L., Torres-Verdín, C., Salazar, J. M., and Voss, B., 2007, "Fast 2D inversion of large borehole EM induction data sets with a domain-decomposition method" (Expanded Abstract): Society of Exploration Geophysicists (SEG) 77th Ann. Internat. Mtg., San Antonio, TX, September 23-28. PDF
Liu, Z., Torres-Verdín, C., Wang, G. L., Mendoza, A., Zhu, P., and Terry, R., 2007, "Joint inversion of density and resistivity logs for the improved petrophysical assessment of thinly-bedded clastic rock formations" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 48th Ann. Logging Symposium, Austin, Texas, June 3-6. PDF
Malik, M., Salazar, J. M., Torres-Verdín, C., Wang, G. L., Lee, H. J., and Sepehrnoori, K., 2007, "Influence of petrophysical and fluid properties on array-induction measurements acquired in the presence of oil-base mud-filtrate invasion" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 48th Ann. Logging Symposium, Austin, Texas, June 3-6. PDF
Malik, M., Torres-Verdín, C., Sepehrnoori, K., Dindoruk, B., Elshahawi, H., and Hashem, M., 2007, "Field examples of history matching of formation-tester measurements acquired in the presence of oil-base mud-filtrate invasion" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 48th Ann. Logging Symposium, Austin, Texas, June 3-6. PDF
Mendoza, A., Torres-Verdín, C., and Preeg, W. E., 2007, "Rapid simulation of borehole nuclear measurements with approximate spatial flux-scattering functions" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 48th Ann. Logging Symposium, Austin, Texas, June 3-6. PDF
Salazar, J. M., Wang, G. L., Torres-Verdín, C., and Lee, H. J., 2007, "Combined simulation and inversion of SP and resistivity logs for the estimation of connate water resistivity and Archie's cementation exponent" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 48th Ann. Logging Symposium, Austin, Texas, June 3-6. PDF
Uzoh, E., Mendoza, A., Torres-Verdín, C., Preeg, W. E., and Stockhausen, E., 2007, "Quantitative studies of relative dip angle and bed-thickness effects on LWD density images acquired in high-angle and horizontal wells" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 48th Ann. Logging Symposium, Austin, Texas, June 3-6. PDF
Wang, G. L., Torres-Verdín, C., and Odumosu, T., 2007, "Combined inversion of borehole resistivity and sonic measurements to estimate water saturation, porosity, and dry-rock elastic moduli in the presence of invasion" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 48th Ann. Logging Symposium, Austin, Texas, June 3-6. PDF
Yang, W., Torres-Verdín, C., Akkurt, R., Al-Dossari, S., Al-Towijri, A., and Ersoz, H., 2007, "Interpretation of frequency-dependent dual-laterolog measurements acquired in Middle-East carbonate reservoirs using a second-order finite-element method" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 48th Ann. Logging Symposium, Austin, Texas, June 3-6. PDF
Paszynski, M., Pardo, D., Demkowicz, L., and Torres-Verdín, C., 2007, "An algorithm for transferring 2D arbitrary hp-refined finite element axially symmetric meshes to three dimensions" (Expanded Abstract): XIV Conference on Computer Methods in Materials Science (organized by the European Community on Computational Mechanics in Applied Sciences, ECCOMAS), Zakopane, Poland, January 14-17, 2007 PDF

2006

Lee, H., Torres-Verdín, C., and Sepehrnoori, K., 2006, Coupled pressure-transient behavior and geomechanical deformation in the near-borehole region of unconsolidated clastic rock formations" (Expanded Abstract): Society of Petroleum Engineers (SPE) 2006 Ann. Internat. Mtg., San Antonio, TX, September 24-27. PDF
Malik, M., Torres-Verdín, C., and Sepehrnoori, K., 2006, "Robust and efficient simulation of formation-tester measurements with a rigorous compositional simulation code" (Expanded Abstract): Society of Petroleum Engineers (SPE) 2006 Ann. Internat. Mtg., San Antonio, TX, September 24-27. PDF
Merletti, G. and Torres-Verdín, C., 2006, "Accurate detection and spatial delineation of thin-sand sedimentary sequences via joint stochastic inversion of well logs and 3D pre-stack seismic amplitude data" (Expanded Abstract): Society of Petroleum Engineers (SPE) 2006 Ann. Internat. Mtg., San Antonio, TX, September 24-27. PDF
Paszynski, M., Pardo, D., Demkowicz, L., and Torres-Verdín, C., 2006, "Parallel hp-finite element simulations of 3D resistivity logging instruments": Proceedings of 13th International Conference on Concurrent Engineering: Research and Applications, French Riviera, September 18-22. PDF
Toumelin, E., Torres-Verdín, C., Devarayan, S., and Sun, B., 2006, "An integrated pore-scale approach for the simulation of grain morphology, wettability, and saturation-history effects on electrical resistivity and NMR measurements of saturated rocks" (Expanded Abstract): Society of Core Analysts (SCA) 20th International Symposium, Trondheim, Norway, September 12-16. PDF
Angeles, R., Yuan, C., and Torres-Verdín, C., 2006, "Spatial sensitivity functions for formation-tester measurements acquired in vertical and horizontal wells" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 47th Ann. Logging Symposium, Veracruz, Mexico, June 4-7. PDF
Devarayan, S., Toumelin, E., Torres-Verdín, C., and Thomas, E. C., 2006, "Pore-scale analysis of the Waxman-Smits shaly sand conductivity model" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 47th Ann. Logging Symposium, Veracruz, Mexico, June 4-7. PDF
Mallan, R. K., and Torres-Verdín, C., 2006, "Effects of petrophysical, environmental, and geometrical parameters on multi-component induction measurements acquired in high-angle wells" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 47th Ann. Logging Symposium, Veracruz, Mexico, June 4-7. PDF
Mendoza, A., Torres-Verdín, C., and Preeg, W., 2006, "Environmental and petrophysical effects on density and neutron porosity logs acquired in highly deviated wells" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 47th Ann. Logging Symposium, Veracruz, Mexico, June 4-7. PDF
Peyret, A., and Torres-Verdín, C., 2006, "Assessment of shoulder-bed, invasion, and lamination effects on borehole sonic logs: a numerical sensitivity study" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 47th Ann. Logging Symposium, Veracruz, Mexico, June 4-7. PDF

2005

Alpak, F. O., Mallan, R. K., Hou, J., and Torres-Verdín, C., 2005, "A data-adaptive spatial resolution method for three-dimensional inversion of triaxial borehole electromagnetic measurements" (Expanded Abstract): Society of Exploration Geophysicists (SEG) 75th Ann. Internat. Mtg., Houston, TX, November 6-11. PDF
Contreras, A., Torres-Verdín, C., Kvien, K., Chesters, W., and Fasnacht, T., 2005, "Joint stochastic inversion of 3D pre-stack seismic data and well logs for high-resolution reservoir characterization and petrophysical modeling: application to deepwater hydrocarbon reservoirs in the central Gulf of Mexico" (Expanded Abstract): Society of Exploration Geophysicists (SEG) 75th Ann. Internat. Mtg., Houston, TX, November 6-11. PDF
Contreras, A., Torres-Verdín, C., and Fasnacht, T., 2005, "AVA simultaneous inversion of 3D partially stacked seismic data for the spatial delineation of lithology and fluids units of deepwater hydrocarbon reservoirs in the central Gulf of Mexico" (Expanded Abstract): Society of Exploration Geophysicists (SEG) 75th Ann. Internat. Mtg., Houston, TX, November 6-11. PDF
Contreras, A., Torres-Verdín, C., and Fasnacht, T., 2005, "Sensitivity analysis of factors controlling AVA simultaneous inversion of 3D partially stacked seismic data: application to deepwater hydrocarbon reservoirs in the central Gulf of Mexico" (Expanded Abstract): Society of Exploration Geophysicists (SEG) 74th Ann. Internat. Mtg., Houston, TX, November 6-11. PDF
Yang, W. and Torres-Verdín, C., 2005, "Numerical simulation of dual-laterolog measurements in the presence of dipping wells and anisotropic and invaded rock formations" (Expanded Abstract): Society of Exploration Geophysicists (SEG) 75th Ann. Internat. Mtg., Houston, TX, November 6-11. PDF
Angeles-Boza, R., Lee, H. J., Alpak, F. O., Torres-Verdín, C., and Sheng, J., 2005, "Efficient and accurate estimation of permeability and permeability anisotropy using the physics of two-phase immiscible flow and invasion: numerical and field examples" (Expanded Abstract): Society of Petroleum Engineers (SPE) 2005 Ann. Internat. Mtg., Dallas, TX, October 9-12. PDF
Johns, A., Lake, L. W., Torres-Verdín, C., and Srinivasan, S., 2005, "Seismic facies identification and classification using simple statistics" (Expanded Abstract): Society of Petroleum Engineers (SPE) 2005 Ann. Internat. Mtg., Dallas, TX, October 9-12. PDF
Toumelin, E., Torres-Verdín, C., and Bona, N., 2005, "Improving the petrophysical assessment of rock-fluid systems with wide-band electromagnetic measurements" (Expanded Abstract): Society of Petroleum Engineers (SPE) 2005 Ann. Internat. Mtg., Dallas, TX, October 9-12. PDF
Pardo, D., Torres-Verdín, C., and Demkowicz, L., 2005, "High-accuracy simulations of resistivity logging instruments using a self-adaptive goal-oriented HP finite-element method": International Conference on Adaptive Modeling and Simulation (ADMOS 2005), Barcelona, Spain, September 8-10. PDF
Toumelin, E., Torres-Verdín, C., and Bona, N., 2005, "A new pore-scale framework for the simulation and interpretation of wide-band dielectric measurements" (Expanded Abstract): Society of Core Analysts (SCA) 19th International Symposium, Toronto, Canada, August 21-25. PDF
Contreras, A., Torres-Verdín, C., Kvien, K., Chesters, W., and Fasnacht, T., 2005, "Joint stochastic inversion of petrophysical logs and 3D pre-stack seismic data to assess the spatial continuity of fluid units away from wells: application to a Gulf of Mexico deepwater hydrocarbon reservoir" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 46th Ann. Logging Symposium, New Orleans, LA, June 26-29. PDF
Mendoza, J. M., Preeg, W., Torres-Verdín, C., and Alpak, F. O., 2005, "Monte Carlo modeling of nuclear measurements in vertical and horizontal wells in the presence of mud-filtrate invasion and salt mixing" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 46th Ann. Logging Symposium, New Orleans, LA, June 26-29. PDF
Salazar, J. M., Alpak, F. O., Torres-Verdín, C., Habashy, T. M., and Klein, J. D., 2005, "Automatic estimation of permeability from array induction measurements: applications to field data" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 46th Ann. Logging Symposium, New Orleans, LA, June 26-29. PDF
Toumelin, E., and Torres-Verdín, C., 2005, "Influence of oil saturation and wettability on rock resistivity measurements: a uniform pore-scale approach" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 46th Ann. Logging Symposium, New Orleans, LA, June 26-29. PDF
Contreras, A., Torres-Verdín, C., Kvien, K., Chesters, W., and Fasnacht, T., 2005, "AVA stochastic inversion of pre-stack seismic data and well logs for 3D reservoir modeling" (Expanded Abstract): European Association of Geoscientists and Engineers (EAGE) 67th Ann. Conference and Exhibition, Madrid, Spain, June 13-16. PDF

2004

Chi, S., and Torres-Verdín, C., 2004, "Synthesis of multipole acoustic logging measurements using the generalized reflection/transmission matrices method" (Expanded Abstract): Society of Exploration Geophysicists (SEG) 74th Ann. Internat. Mtg., Denver, CO, October 10-15. PDF
Chi, S., and Torres-Verdín, C., 2004, "Invasion correction of acoustic logs in a gas reservoir" (Expanded Abstract): Society of Exploration Geophysicists (SEG) 74th Ann. Internat. Mtg., Denver, CO, October 10-15. PDF
Contreras, A., and Torres-Verdín, C., 2004, "AVA sensitivity analysis and inversion of 3D pre-stack seismic data to delineate a mixed carbonate-siliciclastic reservoir in the Barinas-Apure Basin, Venezuela" (Expanded Abstract): Society of Exploration Geophysicists (SEG) 74th Ann. Internat. Mtg., Denver, CO, October 10-15. PDF
Gao, G., and Torres-Verdín, C., 2004, "A high-order generalized extended Born approximation to simulate electromagnetic geophysical measurements in inhomogeneous and anisotropic media" (Expanded Abstract): Society of Exploration Geophysicists (SEG) 74th Ann. Internat. Mtg., Denver, CO, October 10-15. PDF
Hou, J., and Torres-Verdín, C., 2004, "Finite-difference modeling of borehole induction data in the presence of 3D electrical conductivity anisotropy using coupled scattered potentials" (Expanded Abstract): Society of Exploration Geophysicists (SEG) 74th Ann. Internat. Mtg., Denver, CO, October 10-15. PDF
Varela, O. J., and Torres-Verdín, C., 2004, "Pre-stack seismic data reduces uncertainty in the appraisal of dynamic reservoir behavior" (Expanded Abstract): Society of Exploration Geophysicists (SEG) 74th Ann. Internat. Mtg., Denver, CO, October 10-15. PDF
Alpak, F. O., Torres-Verdín, C., Habashy, T. M., and Sepehrnoori, K., 2004, "Simultaneous estimation of in-situ multi-phase petrophysical properties of rock formations from wireline formation tester and induction logging measurements" (Expanded Abstract): Society of Petroleum Engineers (SPE) 2004 Ann. Internat. Mtg., Houston, TX, September 26-29. PDF
Chi, S., Torres-Verdín, C., Wu, J., and Alpak, O. F., 2004, "Assessment of mud-filtrate invasion effects on borehole acoustic logs and radial profiling of formation elastic properties" (Expanded Abstract): Society of Petroleum Engineers (SPE) 2004 Ann. Internat. Mtg., Houston, TX, September 26-29. PDF
Chowdhury, S., Torres-Verdín, C., and Mezzatesta, A., 2004, "Interpretation of borehole measurements acquired in laminated sequences subject to mud-filtrate invasion" (Expanded Abstract): Society of Petroleum Engineers (SPE) 2004 Ann. Internat. Mtg., Houston, TX, September 26-29. PDF
Toumelin, E., Torres-Verdín, C., Sun, B., and Dunn, K.-J., 2004, "A numerical assessment of modern borehole NMR interpretation techniques" (Expanded Abstract): Society of Petroleum Engineers (SPE) 2004 Ann. Internat. Mtg., Houston, TX, September 26-29. PDF
Lee, H., Proett, M., Weintraub, P., Fogal, J., and Torres-Verdín, C., 2004, "Results of Laboratory Experiments to Simulate the Downhole Environment of Formation Testing While Drilling" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 45th Ann. Logging Symposium, Noordwijk, The Netherlands, June 6-9. PDF
Gambus, M., and Torres-Verdín, C., 2004, "Production assessment of reservoir models constructed with the use of 3D seismic data" (Expanded Abstract): European Association of Geoscientists and Engineers (EAGE) 66th Ann. Conference and Exhibition, Paris, France, June 7-10. PDF

2003

Merletti, G. D., Hlebszevitsch, J. C., and Torres-Verdín, C., 2003, "Geostatistical inversion for the lateral delineation of thin-layer hydrocarbon reservoirs: a case study in San Jorge Basin, Argentina" (Expanded Abstract): Society of Exploration Geophysicists (SEG) 73th Ann. Internat. Mtg., Dallas, Texas, October 26-31. PDF
Varela, O. J., Torres-Verdín, C., and Sen, M. K., 2003, "Joint stochastic inversion of pre-stack seismic data and well logs for high-resolution reservoir delineation and improved production forecast" (Expanded Abstract): Society of Exploration Geophysicists (SEG) 73th Ann. Internat. Mtg., Dallas, TX, October 26-31. PDF
Hou, J., and Torres-Verdín, C., 2003, "Finite-difference modeling of EM fields using coupled potentials in 3D anisotropic media: applications to borehole logging" (Expanded Abstract): Society of Exploration Geophysicists (SEG) 73th Ann. Internat. Mtg., Dallas, TX, October 26-31. PDF
Torres-Verdín, C., Alpak, O. F., Wu J., Gao, G., Hou, J., Varela, O. J., Gambús-Ordaz, M., Chi, S., and Toumelin, E., 2003, "A multi-physics, integrated approach to formation evaluation using borehole geophysical measurements and 3D seismic data" (Expanded Abstract): Society of Exploration Geophysicists (SEG) 73th Ann. Internat. Mtg., Dallas, TX, October 26-31. PDF
Wu, Z., Alpak, F. O., and Torres-Verdín, C., 2003, "A quantitative study to assess the value of pressure data acquired with in-situ permanent sensors in complex 3D reservoir models subject to two-phase fluid flow" (Expanded Abstract): Society of Petroleum Engineers (SPE) 2003 Ann. Internat. Mtg., Denver, CO, October 5-8. PDF
Wu, J., Torres-Verdín, C., Sepehrnoori, K., Proett, M. A., and Van Dalen, S. C., 2003, "A new inversion technique determines in-situ relative permeabilities and capillary pressure parameters from pumpout wireline formation tester data" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 44th Ann. Logging Symposium, Galveston, TX, June 22-25. PDF
Gao, G., and Torres-Verdín, C., 2003, "Fast inversion of borehole array induction data using an inner-outer loop optimization technique? (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 44th Ann. Logging Symposium, Galveston, TX, June 22-25. PDF
Gao, G., Torres-Verdín, C., and Fang, S., 2003, "Fast 3D modeling of borehole induction data in dipping and anisotropic formations using a novel approximation technique" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 44th Ann. Logging Symposium, Galveston, TX, June 22-25. PDF
George, B. K., Torres-Verdín, C., Delshad, M., Sigal, R., Zouioueche, F., and Anderson, B., 2003, "A case study integrating the physics of mud-filtrate invasion with the physics of induction logging: assessment of in-situ hydrocarbon saturation in the presence of deep invasion and highly saline connate water" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 44th Ann. Logging Symposium, Galveston, TX, June 22-25. PDF
Alpak, O. F., Habashy, T. M., Torres-Verdín, C., and Dussan, E. V., 2003, "Joint inversion of pressure and time-lapse electromagnetic logging measurements" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 44th Ann. Logging Symposium, Galveston, TX, June 22-25. PDF
Varela, O. J., Torres-Verdín, C., and Sen, M. K., 2003, "Enforcing smoothness and assessing uncertainty in one-dimensional pre-stack seismic inversion" (Expanded Abstract): European Association of Geoscientists and Engineers (EAGE) 65th Ann. Conference and Exhibition, Stavanger, Norway, June 2-6. PDF
Fang, S., Gao, G., and Torres-Verdín, C., 2003, "Efficient 3-D Electromagnetic Modeling in the Presence of Anisotropic Conductive Media Using Integral Equations": Three-Dimensional Electromagnetics Workshop No. 3 (3DEM-3), Adelaide, Australia, February 20-21. PDF
Gao, G., Fang, S., and Torres-Verdín, C., 2003, "A New Approximation for 3D Electromagnetic Scattering in the Presence of Anisotropic Conductive Media": Three-Dimensional Electromagnetics Workshop No. 3 (3DEM-3), Adelaide, Australia, February 20-21. PDF

2002

Torres-Verdín, C., Wu, Z., Varela, O. J., Sen, M. K., and Roy, I. G., 2002, "Joint inversion of reservoir production measurements and 3D pre-stack seismic data: proof of concept" (Expanded Abstract): Society of Exploration Geophysicists (SEG) 72th Ann. Internat. Mtg., Salt Lake City, Utah, October 6-11. PDF
Roy, I. G., Sen, M. K., Torres-Verdín, C., and Varela, O. J., 2002, "Pre-stack inversion of a Gulf of Thailand OBC data set" (Expanded Abstract): Society of Exploration Geophysicists (SEG) 72th Ann. Internat. Mtg., Salt Lake City, Utah, October 6-11. PDF
Gambus, M., Torres-Verdín, C., and Schile, C. A., 2002, "High-resolution geostatistical inversion of a seismic data set acquired in a Gulf of Mexico gas reservoir" (Expanded Abstract): Society of Exploration Geophysicists (SEG) 72th Ann. Internat. Mtg., Salt Lake City, Utah, October 6-11. PDF
Alpak, F. O., Torres-Verdín, C., Sepehrnoori, K., and Fang, S., 2002, "Numerical sensitivity studies for the joint inversion of pressure and DC resistivity measurements acquired with in-situ permanent sensors" (Expanded Abstract): Society of Petroleum Engineers (SPE) 2002 Ann. Internat. Mtg., San Antonio, TX, September 29-October 2. PDF
Varela, O. J., Torres-Verdín, C., and Lake, L. 2002, "Assessing the value of 3D seismic data in reducing uncertainty in reservoir production forecasts" (Expanded Abstract): Society of Petroleum Engineers (SPE) 2002 Ann. Internat. Mtg., San Antonio, TX, September 29-October 2. PDF
Wu, J., Torres-Verdín, C., Proett, M., Sepehrnoori, K., and Belanger, D. L., 2002, "Inversion of multi-phase petrophysical properties using pumpout sampling data acquired with a wireline formation tester" (Expanded Abstract): Society of Petroleum Engineers (SPE) 2002 Ann. Internat. Mtg., San Antonio, TX, September 29-October 2. PDF
Toumelin, E., Torres-Verdín, C., and Chen, S. 2002, "Quantification of multi-phase fluid saturations in complex pore geometries from simulations of nuclear magnetic resonance measurements" (Expanded Abstract): Society of Petroleum Engineers (SPE) 2002 Ann. Internat. Mtg., San Antonio, TX, September 29-October 2. PDF
Toumelin, E., Torres-Verdín, C., and Chen, S., and Fischer, M. 2002, "Analysis of NMR diffusion coupling effects in two-phase carbonate rocks: comparison of measurements with Monte Carlo simulations" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 43rd Ann. Logging Symposium, Oiso, Japan, June 1-5. PDF

2001

Alpak, O. F., Habashy, T. M., Dussan, E. V., and Torres-Verdín, C., 2001, "Numerical simulation of mud filtrate invasion in horizontal wells and sensitivity analysis of array induction tools" (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 43rd Ann. Logging Symposium, Oiso, Japan, June 1-5. PDF
Varela, O. J., Torres-Verdín, Sen, M. K., and Roy, I. G., 2002, "Assessing dynamic reservoir behavior with time-lapse pre-stack seismic data: a sensitivity study based on inversion" (Expanded Abstract): European Association of Geoscientists and Engineers (EAGE) 64th Ann. Conference and Exhibition, Florence, Italy, May 27-30. PDF
Wu, J., Torres-Verdín, C., Sepehrnoori, K ., and Delshad, M., 2001, "Numerical simulation of mud-filtrate invasion in deviated wells" (Expanded Abstract): Society of Petroleum Engineers (SPE) 2001 Ann. Internat. Mtg., New Orleans, Louisiana, September 30-October 3. PDF
Alpak, F. O., Torres-Verdín, and C., Sepehrnoori, K ., 2001, "Numerical simulation and inversion of pressure data acquired with permanent sensors" (Expanded Abstract): Society of Petroleum Engineers (SPE) 2001 Ann. Internat. Mtg., New Orleans, Louisiana, September 30-October 3. PDF
Victoria, M., Merletti, G., Grijalba-Cuenca, A., and Torres-Verdín, C., 2001, "Lateral and vertical discrimination of thin-bed fluvial reservoirs: geostatistical inversion of a 3D data set" (Expanded Abstract): Society of Petroleum Engineers (SPE) 2001 Latin American and Caribbean Petroleum Engineering Conference, Buenos Aires, Argentina, March 25-28. PDF

2000

Torres-Verdín, C., Grijalba-Cuenca, A., and Debeye, H., 2000, "A comparison between geostatistical inversion and conventional geostatistical simulation practices for reservoir delineation" (Expanded Abstract): American Association of Petroleum Geologists (AAPG) Hedberg Research Conference on Applied Reservoir Characterization Using Geostatistics, The Woodlands, Texas, December 3-6. PDF
Torres-Verdín, C., Chunduru, R. K., and Mezzatesta, A. G., 2000, "Integrated interpretation of 3D seismic and wireline data to delineate thin oil-producing sands in San Jorge Basin, Argentina" (Expanded Abstract): Society of Petroleum Engineers (SPE) 2000 Ann. Internat. Mtg., Dallas, Texas, October 1- 4.PDF
Grijalba-Cuenca, A., Torres-Verdín, C., and Debeye, H., 2000, "Geostatistical inversion of 3D seismic data to extrapolate petrophysical variables laterally away from the well" (Expanded Abstract): Society of Petroleum Engineers (SPE) 2000 Ann. Internat. Mtg., Dallas, Texas, October 1- 4.PDF

1999

Malinverno, A., and Torres-Verdín, C., 1999, "Bayesian inversion of DC electrical measurements applied to reservoir monitoring" (Expanded Abstract): Society of Exploration Geophysicists (SEG) 69th Ann. Internat. Mtg., Houston, Texas, October 31-November 5. PDF
Torres-Verdín, C., Victoria, M., Merletti, G., and Pendrel, J., 1999, "Trace-based and geostatistical inversion of 3-D seismic data for thin-sand delineation, an application to San Jorge Basin" (Expanded Abstract): Society of Exploration Geophysicists (SEG) 69th Ann. Internat. Mtg., Houston, Texas, October 31-November 5. PDF