UT Shield

Conference Proceedings

2024

Mohamed, T.S., Kristensen, M., Torres-Verdín, C., Akkutlu, I.Y., and Mullins, O.C., 2024, Forward modeling the formation of viscous oils and tar mats over geologic time via history-matching of reservoir charge: Society of Petroleum Engineers (SPE) 2024 Annual Technical Conference and Exhibition, New Orleans, Louisiana, September 23-25.

Crisafulli, D.M. and Torres-Verdín, C., 2024, Assessing the influence of shale concentration on dielectric permittivity using frequency-dependent coaxial probe measurements (Extended Abstract): International Meeting for Applied Geoscience & Energy (IMAGE’24), Houston, Texas, August 26-29.

Gallardo-Giozza, G., Espinoza, D.N., and Torres-Verdín, C., 2024, Evaluation of stress-induced anisotropy of isotropic and anisotropic rocks along confining and deviatoric stress-paths: effects on nonlinear elasticity and estimation of anisotropic rock properties (Extended Abstract): International Meeting for Applied Geoscience & Energy (IMAGE’24), Houston, Texas, August 26-29.

Mohamed, T.S., Kristensen, M., Torres-Verdín, C., and Mullins, O.C., 2024, Biogenic gas charge into oil at the oil-water contact, not vertical migration of oil into biogenic gas reservoir accounts for a Gulf of Mexico reservoir (Extended Abstract): International Meeting for Applied Geoscience & Energy (IMAGE’24), Houston, Texas, August 26-29.

Morales, M.M., Raheem, O., Christie, M., Rabinovich, V., Torres-Verdín, C., and Pyrcz, M., 2024, Automatic rock classification from core data to well logs: Using machine learning to accelerate potential CO2 storage site characterization (Extended Abstract): International Meeting for Applied Geoscience & Energy (IMAGE’24), Houston, Texas, August 26-29.

Morales, M.M., Christie, M., Rabinovich, V., Torres-Verdín, C., and Pyrcz, M., 2024, Automatic well-log baseline correction via deep learning for rapid screening of potential CO2 storage sites (Extended Abstract): International Meeting for Applied Geoscience & Energy (IMAGE’24), Houston, Texas, August 26-29.

Xia, F. and Torres-Verdín, C., 2024, Interpretation of first-arrival times of borehole acoustic measurements acquired in high-angle wells using 3D eikonal numerical simulations (Extended Abstract): International Meeting for Applied Geoscience & Energy (IMAGE’24), Houston, Texas, August 26-29.

Ambia, J. and Torres-Verdín, C., 2024, Inversion-based multiwell petrophysical interpretation of well logs and core data via adaptive rock physics models (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 65th Ann. Logging Symposium, Rio de Janeiro, Brazil, May 18-22.

Ambia, J., Gonzalez Isaza, D., and Torres-Verdín, C., 2024, Petrophysical joint inversion for the estimation of compositional and storage properties of thinly bedded reservoirs: A fully statistical approach (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 65th Ann. Logging Symposium, Rio de Janeiro, Brazil, May 18-22.

Jahani, N. and Torres-Verdín, C., 2024, Improved detection and description of 3D sandstone injectites in the Grane Field, Central North Sea via 1D stochastic inversion of UDAR measurements (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 65th Ann. Logging Symposium, Rio de Janeiro, Brazil, May 18-22.

Jahani, N., Saputra, W., Torres-Verdín, C., and Fjeldberg, E.R., 2024, Fast stochastic inversion of UDAR measurements using adaptive multi-grid simulated annealing guided by model parameter error estimation (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 65th Ann. Logging Symposium, Rio de Janeiro, Brazil, May 18-22.

Mohamed, T.S., Kristensen, M., Torres-Verdín, C., and Mullins, O.C., 2024, Disparate fluid distributions of stacked gas-washed reservoirs are successfully history-matched via forward modeling of fluid mixing processes (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 65th Ann. Logging Symposium, Rio de Janeiro, Brazil, May 18-22.

Saputra, W., Torres-Verdín, C., Ambia, J., Davydycheva, S., Druskin, V., and Zimmerling, J., 2024, Adaptive multidimensional inversion for borehole ultradeep azimuthal resistivity (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 65th Ann. Logging Symposium, Rio de Janeiro, Brazil, May 18-22.

Mohamed, T.S., Elshahawi, H., Kristensen, M., Torres-Verdín, C., and Mullins, O.C., 2024, Forward modeling complex diffusive gradients and matching measured diffusive and quasi-equilibrium fluid distributions in connected reservoirs: International Petroleum Technology Conference (IPTC), Dhahran, Saudi Arabia, February 12 -14.

Mohamed, T.S., Kristensen, M., Pan, S., Wang, K., Torres-Verdín, C., and Mullins, O.C., 2024, Simulation of reservoir charge to predict fluid compositional distribution: a new way to test the geologic model:  International Petroleum Technology Conference (IPTC), Dhahran, Saudi Arabia, February 12 -14.

Mohamed, T.S., Torres-Verdín, C., and Mullins, O.C., 2024, Abnormal viscosity and other implications of reservoir connectivity realizations inferred using reservoir fluid geodynamics: a case study from deepwater Gulf of Mexico: International Petroleum Technology Conference (IPTC), Dhahran, Saudi Arabia, February 12 -14.

2023

Mohamed, T.S., Kristensen, M., Pan, S., Wang, K., Betancourt, S.S., Torres-Verdín, C., and Mullins, O.C, 2023, In-reservoir mixing dynamics over geologic time of separate gas and oil charges in well-connected reservoirs: Society of Petroleum Engineers (SPE) 2023 Annual Technical Conference and Exhibition, San Antonio, Texas, October 16-18.

Sun, Z. and Torres-Verdín, C., 2023, Examining surface roughness effects on subpore-scale trapping mechanisms in porous media via microfluidics (Expanded Abstract): XIV Congress of the International Association for Engineering Geology and the Environment, Chengdu, China, September 21-27.

Saputra, W., Hou, J., Torres-Verdín, C., Davydycheva, S., and Druskin, V., 2023, Adaptive OCCAM’s inversion for the interpretation of borehole ultra-deep azimuthal resistivity measurements: International Meeting for Applied Geoscience & Energy (IMAGE’23), Houston, Texas, August 28-September 1.

Mohamed, T.S., Kristensen, M., Torres-Verdín, C., and Mullins, O.C., 2023, Reservoir simulation of charge history over geologic time matches many measurements of connectivity in stacked turbidite reservoirs: International Meeting for Applied Geoscience & Energy (IMAGE’23), Houston, Texas, August 28-September 1.

Kristensen, M., Mohamed, T.S., Torres-Verdín, C., and Mullins, O.C., 2023, A complex bimodal fluid gradient in a simple tilted sheet reservoir is explained and modeled using gas addition to an oil column: International Meeting for Applied Geoscience & Energy (IMAGE’23), Houston, Texas, August 28-September 1.

Saputra, W., Patzek, T.W., and Torres-Verdín, C., 2023, Physics-based and data-driven production forecasting in the Eagle Ford Shale (Expanded Abstract): Unconventional Resources Technology Conference (URTeC), Denver, CO, June 13-15.

Raheem, O., Pan, W., Torres-Verdín, C., and Morales, M.M., 2023, Best practices in automatic permeability estimation: machine-learning methods vs. conventional petrophysical models (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 64rd Ann. Logging Symposium, Lake Conroe, TX, June 10-14.

Mohamed, T., Bennis, M., Torres-Verdín, C., Merletti, G., and Gelvez, C., 2023, Using formation-tester measurements to estimate depth of invasion and water saturation in deeply-invaded tight-gas sandstones (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 64rd Ann. Logging Symposium, Lake Conroe, TX, June 10-14.

Jahani, N., Torres-Verdín, C., Hou, J., and Tveranger, J., 2023, Limits of 3D detectability and resolution of LWD deep-sensing borehole electromagnetic measurements acquired in the Norwegian Continental Shelf (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 64rd Ann. Logging Symposium, Lake Conroe, TX, June 10-14.

Eghbali, A., Torres-Verdín, C., and Acosta, E.R., 2023, Inversion-based Thomas-Stieber approach to estimate storage and flow properties of heterogeneous shaly sandstones (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 64rd Ann. Logging Symposium, Lake Conroe, TX, June 10-14.

Davydycheva, S., Torres-Verdín, C., Hou, J., Saputra, W., Rabinovich, M., Antonsen, F., Danielsen, B.E., Druskin, V., and Zimmerling, J., 2023, 3D electromagnetic modeling and quality control of ultradeep borehole azimuthal resistivity measurements (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 64rd Ann. Logging Symposium, Lake Conroe, TX, June 10-14.

Abdo, M., Schroeder, C., Aérens, P., and Torres-Verdín, C., 2023, Quantification of the process of mud-filtrate invasion in heterogeneous rocks by combining X-ray computed tomography and numerical simulations (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 64rd Ann. Logging Symposium, Lake Conroe, TX, June 10-14.

Mullins, O.C., Mohamed, T.S., Kristensen, M., Pan, S., Wang, K., and Torres-Verdín, C., 2023, The reservoir fluid geodynamic processes of separate gas and oil charges in reservoirs (Expanded Abstract): European Association of Geoscientists and Engineers (EAGE) 84th Ann. Conference and Exhibition, Vienna, Austria, June 5-8.

 

2022

Aérens, P., Torres-Verdín, C., and Espinoza, N.D., 2022, Experimental time-lapse visualization of mud-filtrate invasion and mudcake deposition in complex rocks using X-ray radiography (Expanded Abstract): Society of Core Analysts (SCA) 35th International Symposium, Austin, TX, September 19-20.

Olszowska, D., Gallardo-Giozza, G., Crisafulli, D., and Torres-Verdín, C., 2022, Angle-dependent ultrasonic wave propagation in rocks for estimating high-resolution elastic properties of complex core samples (Expanded Abstract): Society of Core Analysts (SCA) 35th International Symposium, Austin, TX, September 19-20.

Bautista-Anguiano, J. and Torres-Verdín, C., 2022, Laboratory investigation and numerical simulation of SP suppression in hydrocarbon-bearing rocks: (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 63rd Ann. Logging Symposium, June 11-15, Stavanger, Norway.

Merletti, G., Al Hajri, S., Rabinovich, M., W., Farmer, R., Bennis, M., and Torres-Verdín, C., 2022, Assessment of true formation resistivity and water saturation in deeply-invaded tight-gas sandstones based on the combined numerical simulation of mud-filtrate invasion and resistivity logs: (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 63rd Ann. Logging Symposium, June 11-15, Stavanger, Norway.

Merletti, G., Rabinovich, M., Al Hajri, S., Dawson, W., Farmer, R., Ambia, J., and Torres-Verdín, C., 2022, New iterative resistivity modelling workflow reduces uncertainty in the assessment of water saturation in deeply-invaded reservoirs: (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 63rd Ann. Logging Symposium, June 11-15, Stavanger, Norway.

Mohamed, T., Torres-Verdín, C., and Mullins, O.C., 2022, Connectivity assessment of heavily compartmentalized reservoirs: A new workflow introducing areal downhole fluid analysis and data integration: (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 63rd Ann. Logging Symposium, June 11-15, Stavanger, Norway.

2021

Gallardo Giozza, G., Espinoza, D. N., and Torres-Verdín, C., 2021, Implications of shale anisotropy on the determination of stress barriers of tectonically passive and active sites (Extended Abstract): American Rock Mechanics Association (ARMA) 55th US Rock Mechanics/Geomechanics Symposium, Houston, Texas, June 20-23.

Jahani, N., Ambía, J., Fossum, K., Alyaev, S., Suter, E., and Torres-Verdín, C., 2021, Real-time ensemble-based well-log interpretation for geosteering: (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 62nd Ann. Logging Symposium, Virtual Event, May 17-20.

Noh, K., Torres-Verdín, C., and Pardo, D., 2021, Real-time 2.5D inversion of LWD resistivity measurements using deep learning for geosteering applications across faulted formations: (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 62nd Ann. Logging Symposium, Virtual Event, May 17-20.

Olszowska, D., Gallardo-Giozza, G., and Torres-Verdín, C., 2021, Ultrasonic angle-dependent reflectivity in complex rocks for improved interpretation of sonic and ultrasonic logs: (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 62nd Ann. Logging Symposium, Virtual Event, May 17-20.

2020

Sobolevskaia, V. and Torres-Verdín, C., 2020, New inversion-based rock physics method for calibration of seismic inversion products with well logs (Expanded Abstract): Society of Exploration Geophysicists (SEG) 91st Ann. Internat. Mtg., Virtual Event, October 11-16.

Aérens, P., Medellin, D. and Torres-Verdín, C., 2020, Quality control of NMR measurements in unconventional rocks using Hilbert transforms and semi-logarithmic derivatives (Expanded Abstract): Society of Petroleum Engineers (SPE) 2020 Annual Technical Conference and Exhibition, Houston, Texas, September 11-14.

Deng, T, Ambía, J., and, Torres-Verdín, C., 2020, Multi-well interpretation of wireline logs and core data in the Eagle Ford shale using Bayesian inversion (Expanded Abstract): Unconventional Resources Technology Conference (URTeC), Online, July 20-22.

Gallardo Giozza, G., Torres-Verdín, C., Espinoza, D. N., and Maalouf, E., 2020, Impact of weak rock interfaces on fracturing patterns of synthetic laminated samples (Extended Abstract): American Rock Mechanics Association (ARMA) 54th US Rock Mechanics/Geomechanics Symposium, Golden, Colorado, June 20-July 1 (Virtual).

Sun, Z., Mehmani, A., and Torres-Verdín, C., 2020, Pore-scale investigation of
porosity-resistivity-permeability relationships: Implications for petrophysical rock typing: (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 61st Ann. Logging Symposium, held online over 6 sessions, every Wednesday from June 24 to July 29.

Deng, T., Joaquín Ambía, J., and Torres-Verdín, C., 2020, Bayesian method for rapid multi-well interpretation of well logs and core data in unconventional formations: (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 61st Ann. Logging Symposium, held online over 6 sessions, every Wednesday from June 24 to July 29.

2019

Gelvez, C. and Torres-Verdín, C., 2019, Optimizing LWD fluid sampling with a new transient approach: The reciprocal contamination derivative (Expanded Abstract): Society of Petroleum Engineers (SPE) 2019 Annual Technical Conference and Exhibition, Calgary, Alberta, Canada, 30 September 30-October 2.

Victor, R.A., Torres-Verdín, C., and Prodanovic, M., 2019, Improved digital rocks-based model for NMR permeability estimation in vuggy deepwater carbonates (Expanded Abstract): Offshore Technology Conference Brasil 2019, Rio de Janeiro, Brazil, October 29-31.

Y. Du, Mehmani, A., Xu, K., Balhoff, M, and, Torres-Verdín, C., Micromodel study of the impacts of fracture connectivity and wettability on matrix sweep efficiency (Expanded Abstract): Unconventional Resources Technology Conference (URTeC), Denver, Colorado, July 22-24, 2019.

L. Mejia, Mehmani, A., Balhoff, M, and, Torres-Verdín, C., Process-based microfluidics: tools for quantifying the impact of reservoir quality on recovery factor (Expanded Abstract): Unconventional Resources Technology Conference (URTeC), Denver, Colorado, July 22-24, 2019.

M. Albusairi and Torres-Verdín, C., Fast forward modeling of borehole nuclear magnetic resonance measurements in vertical wells: (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 60th Ann. Logging Symposium, The Woodlands, Texas, June 15-19, 2019.

M. Bennis and Torres-Verdín, C., Estimation of dynamic petrophysical properties from multiple well logs using machine learning and unsupervised rock classification: (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 60th Ann. Logging Symposium, The Woodlands, Texas, June 15-19, 2019.

T. Deng, Ambía, J., and Torres-Verdín, C., Fast Bayesian inversion method for the generalized petrophysical and compositional interpretation of multiple well logs with uncertainty quantification: (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 60th Ann. Logging Symposium, The Woodlands, Texas, June 15-19, 2019.

G. Gallardo-Giozza, Espinoza, D. N., Torres-Verdín, C., and Maalouf, E., Estimation of Thomsen’s epsilon and delta in a single core using ultrasonic phase and group velocity measurements: (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 60th Ann. Logging Symposium, The Woodlands, Texas, June 15-19, 2019.

A. P. Garcia, Heidari, Z., and Torres-Verdín, C., Multi-frequency interpretation of electric resistivity and dielectric permittivity measurements for simultaneous assessment of porosity, water saturation, and wettability: (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 60th Ann. Logging Symposium, The Woodlands, Texas, June 15-19, 2019.

C. Gelvez, Torres-Verdín, C., Se, Y., and Malik, M., What if there was a better formation-testing probe? A case study on optimizing flow geometry: (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 60th Ann. Logging Symposium, The Woodlands, Texas, June 15-19, 2019.

D. T. González, Ambía, J., and Torres-Verdín, C., Petrophysical evaluation of thinly-laminated depositional sequences using statistical matching procedures: (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 60th Ann. Logging Symposium, The Woodlands, Texas, June 15-19, 2019.

J. Liu, Eghbali, A. and Torres-Verdín, C., Resolution enhancement of sonic logs supported by ultrasonic data: (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 60th Ann. Logging Symposium, The Woodlands, Texas, June 15-19, 2019.

D. Medellin, Eghbali, A., Wang, Y., and Torres-Verdín, C., Pore-size-dependent fluid substitution method for improved estimation of NMR porosity, permeability, and relaxation times: (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 60th Ann. Logging Symposium, The Woodlands, Texas, June 15-19, 2019.

A-P. Peyret, Ambía, J., Torres-Verdín, C., and Strobel, J., Automatic interpretation of well logs with lithology-specific deep-learning methods: (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 60th Ann. Logging Symposium, The Woodlands, Texas, June 15-19, 2019.

C. Schroeder and Torres-Verdín, C., Experimental investigation of mud-filtrate invasion using rapid micro-CT imaging: (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 60th Ann. Logging Symposium, The Woodlands, Texas, June 15-19, 2019.

Y. Wang, Medellin, D. and Torres-Verdín, C., Estimating capillary pressure from NMR measurements using a pore-size-dependent fluid substitution method: (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 60th Ann. Logging Symposium, The Woodlands, Texas, June 15-19, 2019.

2018

S. Xu, Tang, X.M., Torres-Verdín, C., and Su, Y.D., Shear-wave anisotropy in cracked rocks and its application to evaluate hydraulic fracturing from acoustic logging data (Expanded Abstract): Society of Exploration Geophysicists (SEG) 88th Ann. Internat. Mtg., Anaheim, CA, October 14-19, 2018.

A. Mehmani, Kelly, S., Torres-Verdín, C., and Balhoff, M., Impact of authigenic surface roughness on water invasion and flowback in fractured media: A micromodel study (Expanded Abstract): Unconventional Resources Technology Conference (URTeC), Houston, Texas, July 23-25, 2018.

G. Goodyear, Sood, A., Andrews, M., Solomon, C. J., Luycx, M., and Torres-Verdín, C., What’s new in borehole nuclear modeling? (A lot!): (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 59th Ann. Logging Symposium, London, England, June 2-6, 2018.

M. Luycx, Torres-Verdín, C., Mohnke, O., Yuan, P., Inanc, F., and Wessling, S., and Mezzatesta, A., Improvements of fast modeling of LWD neutron logs in enlarged boreholes for a commercial LWD tool (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 59th Ann. Logging Symposium, London, England, June 2-6, 2018.

M. Palavecino, Torres-Verdín, C., and Strobel, J., Grain-size distribution, grain arrangement, and fluid transport properties: an integrated rock method for tight-gas sandstones (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 59th Ann. Logging Symposium, London, England, June 2-6, 2018.

2017

Luycx M. and Torres-Verdín, C., Resolution and accuracy of neutron-gamma density measurements compared to conventional gamma-gamma density measurements (Expanded Abstract): Society of Petroleum Engineers (SPE) 2017 Annual Technical Conference and Exhibition, San Antonio, TX, October 9-11, 2017.

Mehmani, A., Kelly, S., Torres-Verdín, C., and Balhoff, M., Quantification of fracture-matrix fluid transport in unconventional rocks using two-scale microfluidic chips (Expanded Abstract): Unconventional Resources Technology Conference (URTeC), Austin, Texas, July 24 – 26, 2017.

Ramos, M. J., Espinoza, D. N., Torres-Verdín, C., Spikes, K. T., and Laubach, S. E., Stress-dependent dynamic-static transforms of anisotropic Mancos shale (Extended Abstract): American Rock Mechanics Association (ARMA) 51st US Rock Mechanics/Geomechanics Symposium, San Francisco, California, June 25-28, 2017.

Schroeder, C., Torres-Verdín, C., and Elshahawi, H., Influence of mud-filtrate invasion effects on pressure gradients estimated from wireline formation-tester measurements (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 58th Ann. Logging Symposium, Oklahoma City, OK, June 17-21, 2017.

Maalouf, E. D. and Torres-Verdín, C., Estimation of rock stiffness coefficients in VTI formations using LWD acoustic measurements (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 58th Ann. Logging Symposium, Oklahoma City, OK, June 17-21, 2017.

Maalouf, E. D. and Torres-Verdín, C., Interpretation of sonic measurements acquired in high-angle and horizontal wells using 3D fast forward modeling (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 58th Ann. Logging Symposium, Oklahoma City, OK, June 17-21, 2017.

Rodríguez-Rozas, A., Pardo, D., and. and Torres-Verdín, C., Fast simulation of 2.5D LWD resistivity tools (Expanded Abstract): European Association of Geoscientists and Engineers (EAGE) 79th Ann. Conference and Exhibition, Paris, France, June 12-15, 2017.

Pardo, D. and Torres-Verdín, C., 1.5D-based inversion of logging-while drilling resistivity measurements in 3D formations (Expanded Abstract): European Association of Geoscientists and Engineers (EAGE) 79th Ann. Conference and Exhibition, Paris, France, June 12-15, 2017.

Menshov, A., Brick, Y., Torres-Verdín, C., and Yilmaz, A. E., Recent progress in rigorous algorithms for the fast solution of 3-D EM frequency-domain integral equations (Expanded Abstract): Sixth International Symposium on Three-Dimensional Electromagnetics, Berkeley, CA, March 28-30, 2017.

Puzyrev, V., Torres-Verdín, C., and Calo, V., Interpretation of deep directional resistivity measurements in high-angle and horizontal wells (Expanded Abstract): Sixth International Symposium on Three-Dimensional Electromagnetics, Berkeley, CA, March 28-30, 2017.

Rodríguez-Rozas, A., Pardo, D., and, Torres-Verdín, C., Fast 3D inversion of borehole resistivity measurements using a dimension-adaptive simulation method (Expanded Abstract): Sixth International Symposium on Three-Dimensional Electromagnetics, Berkeley, CA, March 28-30, 2017.

2016

Puzyrev, V. and Torres-Verdín, C., Inversion-based interpretation of 3D borehole directional resistivity measurements acquired in high-angle and horizontal wells (Expanded Abstract): Society of Exploration Geophysicists (SEG) 86th Ann. Internat. Mtg., Dallas, TX, October 16-21, 2016.

E. Maalouf and Torres-Verdín, C., New physics-based method to efficiently mitigate noise in borehole sonic logs (Expanded Abstract): Society of Exploration Geophysicists (SEG) 86th Ann. Internat. Mtg., Dallas, TX, October 16-21, 2016.

K. Yang, Yilmaz, A., and Torres-Verdín, C., Efficient 3D parametric inversion of hydraulic fractures with low-frequency borehole tri-axial electromagnetic measurements (Expanded Abstract): Society of Exploration Geophysicists (SEG) 86th Ann. Internat. Mtg., Dallas, TX, October 16-21, 2016.

J. D. Escobar, Torres-Verdín, C., Proett, M., and Ma, S. M., Evaluating the impact of multiphase flow properties on formation-tester pressure transients (Expanded Abstract): Society of Petroleum Engineers (SPE) 2016 Annual Technical Conference and Exhibition, Dubai, UAE, September 26-28, 2016.

V. Puzyrev and Torres-Verdín, C., 3D simulations of deep directional electromagnetic tools in high-angle and horizontal wells (Expanded Abstract): European Association of Geoscientists and Engineers (EAGE) 78th Ann. Conference and Exhibition, Vienna, Austria, May 30-June 2, 2016.

J. D. Escobar, Torres-Verdín, C., Proett, M., and Ma, S. M., Improving the interpretation of formation-tester measurements with expedient and detailed numerical simulations (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 57th Ann. Logging Symposium, Reykjavik, Iceland, June 25-29, 2016.

G. Merletti Gramin, P., Salunke, S., Hamman, J., Spain, D., Shabro, V., Armitage, P., Torres-Verdín, C., Salter, G., and Dacy, J., How pore-scale attributes may be used to derive robust drainage and imbibition water saturation models in complex tight-gas reservoirs (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 57th Ann. Logging Symposium, Reykjavik, Iceland, June 25-29, 2016.

M. Palavecino and Torres-Verdín, C., New method of petrophysical rock classification based on MICP and grain-size distribution measurements (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 57th Ann. Logging Symposium, Reykjavik, Iceland, June 25-29, 2016.

M. J.Ramos, Espinoza, D. N., Torres-Verdín, C., Shovkun, I., and Grover, T., Laboratory characterization and detection of fractures through combined ultrasonic and triaxial-stress testing (Extended Abstract): American Rock Mechanics Association (ARMA) 50th US Rock Mechanics/Geomechanics Symposium, Houston, Texas, June 26-29, 2016.

P. Zhang, Shiriyev, J., Torres-Verdín, C., Sharma, M. M., Brick, Y., Massey, J., and Yilmaz, A., Fracture diagnostics using a low-frequency electromagnetic induction method (Extended Abstract): American Rock Mechanics Association (ARMA) 50th US Rock Mechanics/Geomechanics Symposium, Houston, Texas, June 26-29, 2016.

2015

J. W. Espinosa, Good, D. R., Torres-Verdín, C., Steel, R., Olariu, C., Integrated geological, petrophysical, and reservoir properties of the Upper and Middle T Sandstones, Tarapoa Block, Oriente Basin, Ecuador (Expanded Abstract): Society of Petroleum Engineers (SPE) 2015 Latin American and Caribbean Petroleum Engineering Conference, Quito, Ecuador, November 18-20, 2015.
K. Yang, Yilmaz, A., and Torres-Verdín, C., “A goal-oriented framework for rapid integral-equation based analysis of electromagnetic scattering from 3D structures in subsurface sensing (Expanded Abstract),” Society of Exploration Geophysicists (SEG) 85th Ann. Internat. Mtg. New Orleans, LA, October 18-23, 2015.
D. Medellin, Ravi, V. R., and Torres-Verdín, C., “New methods for interpretation of NMR measurements acquired in spatially heterogeneous rocks (Expanded Abstract),” Society of Petroleum Engineers (SPE) 2015 Annual Technical Conference and Exhibition. Houston, TX, September 28-30, 2015.
S. Kelly, Torres-Verdín, C., and Balhoff, M., “Shale fluid transport in nanoscale networks: the competing roles of fluid properties, interfaces, and network geometry (Expanded Abstract),” Unconventional Resources Technology Conference (URTeC). San Antonio, Texas, July 20 – 22, 2015.
S. Misra, Torres-Verdín, C., Homan, D., and Rasmus, J., “Complex electrical conductivity of mudrocks and source-rock formations containing disseminated pyrite (Expanded Abstract),” Unconventional Resources Technology Conference (URTeC). San Antonio, Texas, July 20 – 22, 2015.
P. Sayar, and Torres-Verdín, C., Using sonic and resistivity effective medium theories to quantify the influence of rock fabric on the mechanical properties of organic mudrocks (Expanded Abstract): Unconventional Resources Technology Conference (URTeC), San Antonio, Texas, July 20 – 22, 2015.
S. Misra, Torres-Verdín, C., Homan, D., Minerbo, G., and Rasmus, J., “Laboratory investigation of petrophysical applications of multi-frequency inductive-complex conductivity tensor measurements (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts (SPWLA) 56th Ann. Logging Symposium. Long Beach, CA, July 18-22, 2015.
H. Lee, and Torres-Verdín, C., Thermodynamically consistent estimation of hydrocarbon composition from nuclear and magnetic resonance measurements (Expanded Abstract): Society of Petrophysicists and Well Log Analysts (SPWLA) 56th Ann. Logging Symposium, Long Beach, CA, July 18-22, 2015.
J. Bautista-Anguiano and Torres-Verdín, C., “Mechanistic description, simulation, and interpretation of spontaneous potential logs (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts (SPWLA) 56th Ann. Logging. Long Beach, CA, July 18-22, 2015.
D. Pardo, Torres-Verdín, C., and Bakr, S. A., “Fast and automatic inversion of LWD resistivity measurements for petrophysical interpretation (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts (SPWLA) 56th Ann. Logging Symposium. Long Beach, CA, July 18-22, 2015.
W. Herrera, Wang, R., and Torres-Verdín, C., “Simulation and interpretation of LWD sonic measurements acquired in high-angle and horizontal wells (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts (SPWLA) 56th Ann. Logging Symposium. Long Beach, CA, July 18-22, 2015.
R. Wang, Torres-Verdín, C., Huang, S., and Herrera, W., “Interpretation of sonic waveforms acquired in high-angle and horizontal wells (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts (SPWLA) 56th Ann. Logging Symposium. Long Beach, CA, July 18-22, 2015.
S. Huang and Torres-Verdín, C., “Sonic spatial sensitivity functions and inversion-based layer-by-layer interpretation of borehole sonic logs (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts (SPWLA) 56th Ann. Logging Symposium. Long Beach, CA, July 18-22, 2015.

2014

E. Ortega and Torres-Verdín, C., “New analytical method to calculate matrix- and fluid-corrected total porosity in organic shale (Expanded Abstract),” Society of Petroleum Engineers (SPE) 2014 Annual Technical Conference and Exhibition. Amsterdam, The Netherlands, 2014.
O. Ijasan, Torres-Verdín, C., Preeg, W. E., Rasmus, J., and Stockhausen, E. J., “Inversion-based interpretation of LWD resistivity and nuclear measurements: Field examples of application in high-angle and horizontal wells (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts (SPWLA) 55th Ann. Logging Symposium. Abu Dhabi, UAE, 2014.
O. Ajayi, Torres-Verdín, C., and Preeg, W. E., “Rapid simulation and inversion-based interpretation of gamma ray spectroscopy logs in high-angle and horizontal wells (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts (SPWLA) 55th Ann. Logging Symposium. Abu Dhabi, UAE, 2014.

2013

Q. Yang and Torres-Verdín, C., “Joint stochastic interpretation of conventional well logs acquired in hydrocarbon-bearing shale (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts (SPWLA) 54th Ann. Logging Symposium. New Orleans, Louisiana, 2013.
C. Xu, Yang, Q., and Torres-Verdín, C., “Bayesian hypothesis testing: using fast well-log forward modeling to validate petrophysical rock typing and to quantify uncertainty in deepwater reservoirs (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts (SPWLA) 54th Ann. Logging Symposium. New Orleans, Louisiana, 2013.
C. Xu and Torres-Verdín, C., “Multi-scale orthogonal rock class decomposition: top-down reservoir characterization integrating logs and core in tight gas sands (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts (SPWLA) 54th Ann. Logging Symposium. New Orleans, Louisiana, 2013.
J. Rasmus, Ijasan, O., Morriss, C., Griffiths, R., Ellis, D., Chiaramonte, J. M., Case, C. R., and Torres-Verdín, C., “Is porosity anisotropy real and will it affect my petrophysical evaluations? (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts (SPWLA) 54th Ann. Logging Symposium. New Orleans, Louisiana, 2013.
V. Shabro, Kelly, S., Torres-Verdín, C., and Sepehrnoori, K., “Pore-scale modeling of electrical resistivity and permeability in FIB-SEM images of hydrocarbon-bearing shale (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts (SPWLA) 54th Ann. Logging Symposium. New Orleans, Louisiana, 2013.
E. Ortega, Torres-Verdín, C., Preeg, W. E., and Miles, J., “Multidetector LWD Sigma logging principles, petrophysical applications, and environmental effects (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts (SPWLA) 54th Ann. Logging Symposium. New Orleans, Louisiana, 2013.
A. Montaut, Sayar, P., and Torres-Verdín, C., “Detection and quantification of rock physics properties for improved hydraulic fracturing in hydrocarbon-bearing shale (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts (SPWLA) 54th Ann. Logging Symposium. New Orleans, Louisiana, 2013.
A. Frooqnia, Torres-Verdín, C., Sepehrnoori, K., A-Pour, R., and Mohebinia, S., “Estimation of near-wellbore relative permeability from simulation and inversion of time-lapse multiphase production logs (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts (SPWLA) 54th Ann. Logging Symposium. New Orleans, Louisiana, 2013.
O. Ijasan, Torres-Verdín, C., and Preeg, W. E., “Estimation of porosity and fluid constituents from neutron and density logs using an interactive matrix scale (Expanded Abstract),” ): Society of Petrophysicists and Well Log Analysts (SPWLA) 54th Ann. Logging Symposium. New Orleans, Louisiana, 2013.
H. Hadibeik, Kwabi, E., Torres-Verdín, C., and Sepehrnoori, K., “Miscibility effects of oil-base mud and in-situ gas on conventional well logs (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts (SPWLA) 54th Ann. Logging Symposium. New Orleans, Louisiana, 2013.
H. Hadibeik, A-Pour, R., Torres-Verdín, C., Sepehrnoori, K., and Shabro, V., “Fast estimation of permeability from formation-tester measurements acquired in high-angle wells (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts (SPWLA) 54th Ann. Logging Symposium. New Orleans, Louisiana, 2013.
A. Bansal, Xu, C., Torres-Verdín, C., and Mendez de León, J., “Improved petrophysical evaluation of consolidated calcareous turbidite sequences with multi-component induction, magnetic resonance, resistivity images, and core measurements (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts (SPWLA) 54th Ann. Logging Symposium. New Orleans, Louisiana, 2013.
C. Xu and Torres-Verdín, C., “Core-based petrophysical rock classification by pore-system orthogonality with a bimodal Gaussian density function (Expanded Abstract),” Society of Core Analysts (SCA) 2013 International Symposium. Napa Valley, CA, 2013.
K. Yang, Celik, E., Torres-Verdín, C., and Yilmaz, A. E., “Detection and quantification of 3D hydraulic fractures with multi-component low-frequency borehole resistivity measurements (Expanded Abstract),” Society of Exploration Geophysicists (SEG) 83rd Ann. Internat. Mtg. Houston, TX, 2013.
C. Xu, Torres-Verdín, C., and Gao, S., “Electrical vs. hydraulic rock types in clastic reservoirs: pore-scale understanding verified with field observations in the Gulf of Mexico, U.S. (Expanded Abstract),” Society of Exploration Geophysicists (SEG) 83rd Ann. Internat. Mtg. Houston, TX, 2013.
S. Huang, Yang, Q., Matuszyk, P. J., and Torres-Verdín, C., “High-resolution interpretation of sonic logging measurements using stochastic inversion with spatial slowness sensitivity functions (Expanded Abstract),” Society of Exploration Geophysicists (SEG) 83rd Ann. Internat. Mtg. Houston, TX, 2013.
S. Huang, Matuszyk, P. J., and Torres-Verdín, C., “Spatial sensitivity functions for rapid and accurate simulation of borehole sonic measurements (Expanded Abstract),” Society of Exploration Geophysicists (SEG) 83rd Ann. Internat. Mtg. . Houston, TX, 2013.
C. Xu, Torres-Verdín, C., Yang, Q., and Diniz-Ferreira, E., “Connate water saturation – irreducible or not: The key to reliable hydraulic rock typing in reservoirs straddling multiple capillary windows (Expanded Abstract),” Society of Petroleum Engineers (SPE) 2013 Annual Technical Conference and Exhibition. New Orleans, LA, 2013.
C. Xu, Torres-Verdín, C., and Steel, R. J., “Geological attributes from conventional well logs: Relating rock types to depositional facies in deepwater turbidite reservoirs (Expanded Abstract),” Society of Petroleum Engineers (SPE) 2013 Annual Technical Conference and Exhibition. New Orleans, LA, 2013.
S. Misra, Torres-Verdín, C., and Sepehrnoori, K., “Environmental and transport effects on core measurements of water saturation, salinity, wettability, and hydrocarbon composition (Expanded Abstract),” Society of Petroleum Engineers (SPE) 2013 Annual Technical Conference and Exhibition. New Orleans, LA, 2013.
H. Adiguna and Torres-Verdín, C., “Comparative study for the interpretation of mineral concentrations, total porosity, and TOC in hydrocarbon-bearing shale from conventional well logs (Expanded Abstract),” Society of Petroleum Engineers (SPE) 2013 Annual Technical Conference and Exhibition. New Orleans, LA, 2013.

2012

C. Xu, Heidari, Z., and Torres-Verdín, C., “Rock classification in carbonate reservoirs based on static and dynamic petrophysical properties estimated from conventional well logs (Expanded Abstract),” Society of Petroleum Engineers 2012 Annual International Meeting. Society of Petroleum Engineers, San Antonio, TX, 2012.
E. L. Diniz-Ferreira and Torres-Verdín, C., “Improved estimation of pore connectivity and permeability in deepwater carbonates with construction of multi-layer static and dynamic petrophysical models (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts 53rd Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Cartagena, Colombia, 2012.
K. Jerath, Torres-Verdín, C., and Merletti, G., “Improved assessment of in-situ fluid saturation with multi-dimensional NMR measurements and conventional well logs (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts 53rd Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Cartagena, Colombia, 2012.
C. Xu and Torres-Verdín, C., “Saturation-height and invasion consistent hydraulic rock typing using multi-well conventional well logs (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts 53rd Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Cartagena, Colombia, 2012.
H. Hadibeik, Proett, M., Chen, D., Eyuboglu, S., Torres-Verdín, C., and Pour, R. A., “Formation-tester pulse testing in tight formations (shales and heavy oil): where wellbore storage effects favor the determination of reservoir pressure (Expanded Abstract),” Society of Petroleum Engineers Americas Unconventional Resources Conference. Society of Petroleum Engineers, Pittsburgh, PA, 2012.
C. Xu, Torres-Verdín, C., Ma, J. M., and Li, W., “Fluid substitution analysis to correct borehole geophysical measurements acquired in gas-bearing formations invaded with oil-base mud (Expanded Abstract),” Society of Exploration Geophysicists 82nd Annual International Meeting. Society of Exploration Geophysicists, Las Vegas, NV, 2012.
H. Hadibeik, Chen, D., Proett, M., Eyuboglu, S., and Torres-Verdín, C., “Petrophysical properties of unconventional low-mobility reservoirs (shale gas and heavy oil) by using a newly developed adaptive testing approach (Expanded Abstract),” Society of Petroleum Engineers 2012 Annual International Meeting. Society of Petroleum Engineers, San Antonio, TX, 2012.
Z. Heidari and Torres-Verdín, C., “Improved detection of bed boundaries for petrophysical evaluation with well logs: applications to carbonate and organic-shale formations (Expanded Abstract),” Society of Petroleum Engineers 2012 Annual International Meeting. Society of Petroleum Engineers, San Antonio, TX, 2012.
A. Popielski, Heidari, Z., and Torres-Verdín, C., “Rock classification from conventional well logs in hydrocarbon-bearing shale (Expanded Abstract),” Society of Petroleum Engineers 2012 Annual International Meeting. Society of Petroleum Engineers, San Antonio, TX, 2012.
V. Shabro, Torres-Verdín, C., and Sepehrnoori, K., “Forecasting gas production in organic shale with the combined numerical simulation of gas diffusion in kerogen, Langmuir desorption from kerogen surfaces, and advection in nanopores (Expanded Abstract),” Society of Petroleum Engineers 2012 Annual International Meeting. Society of Petroleum Engineers, San Antonio, TX, 2012.
O. Ijasan, Torres-Verdín, C., and Preeg, W. E., “Fast modeling of borehole neutron measurements with a new transport-diffusion approximation (Expanded Abstract),” Society of Exploration Geophysicists 82nd Annual International Meeting. Society of Exploration Geophysicists, Las Vegas, NV, 2012.
W. Li, Guo, R., Wang, H., Torres-Verdín, C., Ma, J. M., and Xu, C., “Enhanced dispersion analysis of borehole array sonic measurements with amplitude and phase estimation method (Expanded Abstract),” Society of Exploration Geophysicists 82nd Annual International Meeting. Society of Exploration Geophysicists, Las Vegas, NV, 2012.
D. Pardo and Torres-Verdín, C., “Hydrofracture diagnosis in open-hole and steel-cased wells using borehole resistivity measurements (Expanded Abstract),” Society of Exploration Geophysicists 82nd Annual International Meeting. Society of Exploration Geophysicists, Las Vegas, NV, 2012.

2011

O. Ijasan, Torres-Verdín, C., Preeg, W. E., and Mendoza, A., “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 52nd Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Colorado Springs, CO, 2011.
A. Frooqnia, A-Pour, R., Torres-Verdín, C., and Sepehrnoori, K., “Numerical simulation and interpretation of production logging measurements using a coupled wellbore-reservoir model (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts 52nd Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Colorado Springs, CO, 2011.
P. Marouby, Heidari, Z., and Torres-Verdín, C., “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 52nd Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Colorado Springs, CO, 2011.
R. Pour, Torres-Verdín, C., and Sepehrnoori, K., “Quantifying wettability alteration during oil-base mud-filtrate invasion and corresponding effects on resistivity logs (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts 52nd Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Colorado Springs, CO, 2011.
V. Shabro, Torres-Verdín, C., and Javadpour, F., “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 54th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, New Orleans, LA, 2011.
H. Hadibeik, Pour, R., Torres-Verdín, C., Sepehrnoori, K.,, and Shabro, V., “3D multiphase streamline-based method for interpretation of formation-tester measurements acquired in vertical and deviated wells (Expanded Abstract),” Society of Petroleum Engineers 2011 Annual International Meeting. Society of Petroleum Engineers, Denver, CO, 2011.
P. Matuszyk and Torres-Verdín, C., “hp-Adaptive multiphysics finite-element simulation of wireline borehole sonic waveforms (Expanded Abstract),” Society of Exploration Geophysicists 81th Annual International Meeting. Society of Exploration Geophysicists, San Antonio, TX, 2011.
Q. Yang and Torres-Verdín, C., “Efficient 2D Bayesian inversion of borehole resistivity measurements (Expanded Abstract),” Society of Exploration Geophysicists 81th Annual International Meeting. Society of Exploration Geophysicists, San Antonio, TX, 2011.
V. Shabro, Torres-Verdín, C., and Javadpour, F., “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 2011 North American Unconventional Gas Conference and Exhibition. Society of Petroleum Engineers, The Woodlands, TX, 2011.
Z. Heidari, Torres-Verdín, C., and Preeg, W. E., “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 52nd Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Colorado Springs, CO, 2011.

2010

P. Matuszyk, Torres-Verdín, C., and Demkowicz, L., “hp-Adaptive multiphysics finite-element simulation of LWD borehole sonic waveforms (Expanded Abstract),” Society of Exploration Geophysicists 80th Annual International Meeting. Society of Exploration Geophysicists, Denver, CO, 2010.
Z. Heidari and Torres-Verdín, C., “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 80th Annual International Meeting. Society of Exploration Geophysicists, Denver, CO, 2010.
A. Gandhi, Torres-Verdín, C., Voss, B., Gabulle, J., and Seminario, F., “Construction of reliable static and dynamic multi-layer petrophysical models in Camisea gas reservoirs, Peru (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts 51st Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Perth, Australia, 2010.
A. Hadibeik, Proett, M., Torres-Verdín, C., and Sepehrnoori, K., “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 51st Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Perth, Australia, 2010.
Z. Heidari, Torres-Verdín, C., and Preeg, W. E., “Improved estimation of fluid and mineral volumetric concentrations in thinly-bedded and invaded formations (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts 51st Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Perth, Australia, 2010.
J. Ma, Matuszyk, P. J., Mallan, R. K., Torres-Verdín, C., and Voss, B., “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 51st Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Perth, Australia, 2010.
J. Mimoun, Torres-Verdín, C., and Preeg, W. E., “Quantitative interpretation of pulsed neutron capture logs in thinly-bedded formations (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts 51st Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Perth, Australia, 2010.
J. Sanchez-Ramirez, Wolf, D., Torres-Verdín, C., Mendoza, A., and Wang, G. L., “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 51st Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Perth, Australia, 2010.
V. Shabro, Prodanović, M., Arns, C. H., Bryant, S. L., Torres-Verdín, C., and Knackstedt, M. A., “Pore scale modeling of two-phase flow (Expanded Abstract),” XVIII International Conference on Water Resources – CMWR. CMWR, Barcelona, Spain, 2010.

2009

A. Moinfar, Mallan, R., Torres-Verdín, C., and Angeles, R., “Time-lapse variations of multi-component electrical resistivity measurements acquired in high-angle wells (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts 50th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, The Woodlands, Texas, 2009.
R. Mallan, Ma, J., and Torres-Verdín, C., “3D numerical simulation of borehole sonic measurements acquired in dipping, anisotropic, and invaded formations (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts 50th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, The Woodlands, Texas, 2009.
A. Mendoza, Torres-Verdín, C., Preeg, B., Rasmus, J., and Radtke, R. J., “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 50th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, The Woodlands, Texas, 2009.
A. Moinfar, Mallan, R., Torres-Verdín, C., and Angeles, R., “Time-lapse variations of multi-component electrical resistivity measurements acquired in high-angle wells (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts 50th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, The Woodlands, Texas, 2009.
J. Sanchez-Ramirez, Torres-Verdín, C., Wang, G. L., Mendoza, A., Wolf, L. D., Z.,, and Schell, G., “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 50th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, The Woodlands, Texas, 2009.
E. Toumelin and Torres-Verdín, C., “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 50th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, The Woodlands, Texas, 2009.
B. Voss, Torres-Verdín, C., Gandhi, A., Alabi, B., and Lemkecher, M., “Common stratigraphic framework to simulate well logs and cross-validate static and dynamic petrophysical interpretations (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts 50th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, The Woodlands, Texas, 2009.
L. J. Miranda, Torres-Verdín, C., and Lucia, J., “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 2008 EUROPEC Conference. Society of Petroleum Engineers, Amsterdam, The Netherlands, 2009.
M. Paszynski, Pardo, D., and Torres-Verdín, C., “Performance of a multi-frontal parallel direct solver for hp finite element method,” Proceedings of Advances in Computer Sciences and Engineering 2009. Phuket, Thailand, 2009.
M. Malik, Dindoruk, B., Elshahawi, H., and Torres-Verdín, C., “Numerical investigation of oil-base-mud contamination for condensates and oils: from cleanup to sample quality (Expanded Abstract),” Society of Petroleum Engineers 2009 Annual International Meeting. Society of Petroleum Engineers, New Orleans, LA, 2009.
R. K. Mallan, Ma, J., Torres-Verdín, C., and Wang, G. L., “Joint radial inversion of resistivity and sonic logs to estimate in-situ petrophysical and elastic properties of formations (Expanded Abstract),” Society of Petroleum Engineers 2009 Annual International Meeting. Society of Petroleum Engineers, New Orleans, LA, 2009.
V. Shabro, Javadpour, F., Torres-Verdín, C., and Fomel, S. B., “Diffusive-advective gas flow modeling in random nanoporous systems (RNPS) at different Knudsen regimes (Expanded Abstract),” 17th International Conference on Composites/Nano Engineering – ICCE-17. ICCE, Honolulu, HI, 2009.
R. Angeles, Torres-Verdín, C., Sepehrnoori, K., and Elshahawi, H., “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 50th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, The Woodlands, Texas, 2009.
A. Hadibeik, Proett, M., Torres-Verdín, C., Sepehrnoori, K., and Angeles, R., “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 50th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, The Woodlands, Texas, 2009.
Z. Heidari, Torres-Verdín, C., Mendoza, A., and Wang, G. L., “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 50th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, The Woodlands, Texas, 2009.
Z. Heidari, Torres-Verdín, C., Mendoza, A., Ijasan, O., Voss, B., and Preeg, W., “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 2009 Annual International Meeting. Society of Petroleum Engineers, New Orleans, LA, 2009.

2008

R. Angeles, Torres-Verdín, C., and Malik, M., “Prediction of formation-tester fluid-sample quality in highly-deviated wells (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts 49th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Edinburgh, Scotland, 2008.
R. Angeles, Skolnakorn, J., Antonsen, F., Chandler, A., and Torres-Verdín, C., “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,” Society of Petrophysicists and Well Log Analysts 49th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Edinburgh, Scotland, 2008.
M. Malik, Torres-Verdín, C., Sepehrnoori, K., Jackson, R., Weinheber, P., Mullins, O. C., Elshahawi, H., Dindoruk, B., and Hashem, M., “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 49th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Edinburgh, Scotland, 2008.
M. Paszynski, Pardo, D., and Torres-Verdín, C., “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,” Advances in Structural Engineering and Mechanics. Jeju, Korea, 2008.
D. Pardo, Torres-Verdín, C., Nam, M. J., and Paszynski, M., “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. Boston, Massachusetts, 2008.
R. Angeles, Hadibeik, A., Torres-Verdín, C., and Sepehrnoori, K., “Synthetic and field examples of the estimation of capillary pressure and relative permeability from formation-tester measurements (Expanded Abstract),” Society of Petroleum Engineers 2008 EUROPEC Conference 2008 Annual International Meeting. Society of Petroleum Engineers, Denver, CO, 2008.

2007

J. M. Salazar, Wang, G. L., Torres-Verdín, C., and Lee, H. J., “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, 2007.
W. Yang, Torres-Verdín, C., Akkurt, R., Al-Dossari, S., Al-Towijri, A., and Ersoz, H., “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 48th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Austin, TX, 2007.
M. Paszynski, Pardo, D., Demkowicz, L., and Torres-Verdín, C., “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. European Community on Computational Mechanics in Applied Sciences, Zakopane, Poland, 2007.
A. Mendoza, Torres-Verdín, C., and Preeg, W. E., “Rapid simulation of borehole nuclear measurements with approximate spatial flux-scattering functions (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts 48th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Austin, TX, 2007.
J. M. Salazar, Wang, G. L., Torres-Verdín, C., and Lee, H. J., “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 48th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Austin, TX, 2007.
E. Uzoh, Mendoza, A., Torres-Verdín, C., Preeg, W. E., and Stockhausen, E., “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 48th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Austin, TX, 2007.
G. L. Wang, Torres-Verdín, C., and Odumosu, T., “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 48th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Austin, TX, 2007.
M. Malik, Salazar, J. M., Torres-Verdín, C., Wang, G. L., Lee, H. J., and Sepehrnoori, K., “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 48th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Austin, TX, 2007.
M. Malik, Torres-Verdín, C., Sepehrnoori, K., Dindoruk, B., Elshahawi, H., and Hashem, M., “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 48th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Austin, TX, 2007.
M. Paszynski, Pardo, D., and Torres-Verdín, C., “Efficient sequential and parallel solvers for the hp-finite-element method,” APCOM’07 in conjunction with EPMESC XI. APCOM, Kyoto, Japan, 2007.
G. Jin, Torres-Verdín, C., Radaelli, F., and Rossi, E., “Experimental validation of pore-level calculations of static and dynamic petrophysical properties of clastic rocks (Expanded Abstract),” Society of Petroleum Engineers 2007 Annual International Meeting. Society of Petroleum Engineers, Anaheim, CA, 2007.
M. Malik, Torres-Verdín, C., and Sepehrnoori, K., “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 2007 Annual International Meeting. Society of Petroleum Engineers, Anaheim, CA, 2007.
T. Odumosu, Torres-Verdín, C., Salazar, J. M., Ma, J., Boss, V., and Wang, G. L., “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 2007 Annual International Meeting. Society of Petroleum Engineers, Anaheim, CA, 2007.
J. M. Salazar, Malik, M., Torres-Verdín, C., Wang, G. L., and Duan, H., “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 2007 Annual International Meeting. Society of Petroleum Engineers, Anaheim, CA, 2007.
T. Torskaya, Jin, G., and Torres-Verdín, C., “Pore-level analysis of the relationship between porosity, irreducible water saturation, and permeability of clastic rocks (Expanded Abstract),” Society of Petroleum Engineers 2007 Annual International Meeting. Society of Petroleum Engineers, Anaheim, CA, 2007.
C. Michler, Demkowicz, L., and Torres-Verdín, C., “Simulation of borehole acoustic measurements in axisymmetric media with hp-adaptive finite elements (Expanded Abstract),” Society of Exploration Geophysicists 77th Annual International Meeting. Society of Exploration Geophysicists, San Antonio, TX, 2007.
D. Pardo, Torres-Verdín, C., and Paszynski, M., “Numerical simulation of 3D EM borehole measurements using an hp-adaptive goal-oriented finite-element formulation (Expanded Abstract),” Society of Exploration Geophysicists 77th Annual International Meeting. Society of Exploration Geophysicists, San Antonio, TX, 2007.
G. L. Wang, Torres-Verdín, C., Salazar, J. M., and Voss, B., “Fast 2D inversion of large borehole EM induction data sets with a domain-decomposition method (Expanded Abstract),” Society of Exploration Geophysicists 77th Annual International Meeting. Society of Exploration Geophysicists, San Antonio, TX, 2007.
Z. Liu, Torres-Verdín, C., Wang, G. L., Mendoza, A., Zhu, P., and Terry, R., “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 48th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Austin, TX, 2007.

2006

A. Mendoza, Torres-Verdín, C., and Preeg, W., “Environmental and petrophysical effects on density and neutron porosity logs acquired in highly deviated wells (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts 47th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Veracruz, Mexico, 2006.
A. Peyret and Torres-Verdín, C., “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 47th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Veracruz, Mexico, 2006.
H. Lee, Torres-Verdín, C., and Sepehrnoori, K., “Coupled pressure-transient behavior and geomechanical deformation in the near-borehole region of unconsolidated clastic rock formations (Expanded Abstract),” Society of Petroleum Engineers 2006 Annual International Meeting. Society of Petrophysicists and Well Log Analysts, San Antonio, TX, 2006.
M. Malik, Torres-Verdín, C., and Sepehrnoori, K., “Robust and efficient simulation of formation-tester measurements with a rigorous compositional simulation code (Expanded Abstract): Society of Petroleum Engineers (SPE) 2006 Ann,” Society of Petroleum Engineers 2006 Annual International Meeting. Society of Petrophysicists and Well Log Analysts, San Antonio, TX, 2006.
G. Merletti and Torres-Verdín, C., “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 2006 Annual International Meeting. Society of Petrophysicists and Well Log Analysts, San Antonio, TX, 2006.
M. Paszynski, Pardo, D., Demkowicz, L., and Torres-Verdín, C., “Parallel hp-finite element simulations of 3D resistivity logging instruments: Proceedings of 13th International Conference on Concurrent Engineering: Research and Applications,” Proceedings of 13th International Conference on Concurrent Engineering: Research and Applications. French Riviera, 2006.
E. Toumelin, Torres-Verdín, C., Devarayan, S., and Sun, B., “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 20th International Symposium. Society of Core Analysts 20th International Symposium, Trondheim, Norway, 2006.
R. Angeles, Yuan, C., and Torres-Verdín, C., “Spatial sensitivity functions for formation-tester measurements acquired in vertical and horizontal wells (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts 47th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Veracruz, Mexico, 2006.
S. Devarayan, Toumelin, E., Torres-Verdín, C., and Thomas, E. C., “Pore-scale analysis of the Waxman-Smits shaly sand conductivity model (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts 47th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Veracruz, Mexico, 2006.
R. K. Mallan and Torres-Verdín, C., “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 47th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Veracruz, Mexico, 2006.

2005

E. Toumelin and Torres-Verdín, C., “Influence of oil saturation and wettability on rock resistivity measurements: a uniform pore-scale approach (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts 46th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, New Orleans, LA, 2005.
A. Contreras, Torres-Verdín, C., Kvien, K., Chesters, W., and Fasnacht, T., “AVA stochastic inversion of pre-stack seismic data and well logs for 3D reservoir modeling (Expanded Abstract),” European Association of Geoscientists and Engineers 67th Annual Conference and Exhibition. European Association of Geoscientists and Engineers, Madrid, Spain, 2005.
W. Yang and Torres-Verdín, C., “Numerical simulation of dual-laterolog measurements in the presence of dipping wells and anisotropic and invaded rock formations (Expanded Abstract),” Society of Exploration Geophysicists 75th Annual International Meeting. Society of Exploration Geophysicists, Houston, TX, 2005.
R. Angeles-Boza, Lee, H. J., Alpak, F. O., Torres-Verdín, C., and Sheng, J., “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 2005 Annual International Meeting. Society of Petroleum Engineers, Dallas, TX, 2005.
A. Johns, Lake, L. W., Torres-Verdín, C., and Srinivasan, S., “Seismic facies identification and classification using simple statistics (Expanded Abstract),” Society of Petroleum Engineers 2005 Annual International Meeting. Society of Petroleum Engineers, Dallas, TX, 2005.
E. Toumelin, Torres-Verdín, C., and Bona, N., “Improving the petrophysical assessment of rock-fluid systems with wide-band electromagnetic measurements (Expanded Abstract),” Society of Petroleum Engineers 2005 Annual International Meeting. Society of Petroleum Engineers, Dallas, TX, 2005.
D. Pardo, Torres-Verdín, C., and Demkowicz, L., “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). ADMOS, Barcelona, Spain, 2005.
E. Toumelin, Torres-Verdín, C., and Bona, N., “A new pore-scale framework for the simulation and interpretation of wide-band dielectric measurements (Expanded Abstract),” Society of Core Analysts 19th International Symposium. Society of Core Analysts, Toronto, Canada, 2005.
A. Contreras, Torres-Verdín, C., Kvien, K., Chesters, W., and Fasnacht, T., “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 46th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, New Orleans, LA, 2005.
J. M. Mendoza, Preeg, W., Torres-Verdín, C., and Alpak, F. O., “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 46th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, New Orleans, LA, 2005.
D. Pardo, Torres-Verdín, C., and Demkowicz, L., “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). ADMOS, Barcelona, Spain, 2005.
E. Toumelin, Torres-Verdín, C., and Bona, N., “A new pore-scale framework for the simulation and interpretation of wide-band dielectric measurements (Expanded Abstract),” Society of Core Analysts 19th International Symposium. Society of Core Analysts, Toronto, Canada, 2005.
F. O. Alpak, Mallan, R. K., Hou, J., and Torres-Verdín, C., “A data-adaptive spatial resolution method for three-dimensional inversion of triaxial borehole electromagnetic measurements (Expanded Abstract),” Society of Exploration Geophysicists 75th Annual International Meeting. Society of Exploration Geophysicists, Houston, TX, 2005.
A. Contreras, Torres-Verdín, C., Kvien, K., Chesters, W., and Fasnacht, T., “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 75th Annual International Meeting. Society of Exploration Geophysicists, Houston, TX, 2005.
A. Contreras, Torres-Verdín, C., and Fasnacht, T., “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 75th Annual International Meeting. Society of Exploration Geophysicists, Houston, TX, 2005.

2004

J. Hou and Torres-Verdín, C., “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,” Society of Exploration Geophysicists 74th Annual International Meeting. Society of Exploration Geophysicists, Denver, CO, 2004.
O. J. Varela and Torres-Verdín, C., “Pre-stack seismic data reduces uncertainty in the appraisal of dynamic reservoir behavior (Expanded Abstract),” Society of Exploration Geophysicists 74th Annual International Meeting. Society of Exploration Geophysicists, Denver, CO, 2004.
F. O. Alpak, Torres-Verdín, C., Habashy, T. M., and Sepehrnoori, K., “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 2004 Annual International Meeting. Society of Petroleum Engineers, Houston, TX, 2004.
S. Chi, Torres-Verdín, C., Wu, J., and Alpak, O. F., “Assessment of mud-filtrate invasion effects on borehole acoustic logs and radial profiling of formation elastic properties (Expanded Abstract),” Society of Petroleum Engineers 2004 Annual International Meeting. Society of Petroleum Engineers, Houston, TX, 2004.
S. Chowdhury, Torres-Verdín, C., and Mezzatesta, A., “Interpretation of borehole measurements acquired in laminated sequences subject to mud-filtrate invasion (Expanded Abstract),” Society of Petroleum Engineers 2004 Annual International Meeting. Society of Petroleum Engineers, Houston, TX, 2004.
E. Toumelin, Torres-Verdín, C., Sun, B., and Dunn, K. – J., “A numerical assessment of modern borehole NMR interpretation techniques (Expanded Abstract),” Society of Petroleum Engineers 2004 Annual International Meeting. Society of Petroleum Engineers, Houston, TX, 2004.
H. Lee, Proett, M., Weintraub, P., Fogal, J., and Torres-Verdín, C., “Results of Laboratory Experiments to Simulate the Downhole Environment of Formation Testing While Drilling (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts 45th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Noordwijk, The Netherlands, 2004.
M. Gambus and Torres-Verdín, C., “Production assessment of reservoir models constructed with the use of 3D seismic data (Expanded Abstract),” European Association of Geoscientists and Engineers 66th Ann. Conference and Exhibition. European Association of Geoscientists and Engineers, Paris, France, 2004.
S. Chi and Torres-Verdín, C., “Synthesis of multipole acoustic logging measurements using the generalized reflection/transmission matrices method (Expanded Abstract),” Society of Exploration Geophysicists 74th Annual International Meeting. Society of Exploration Geophysicists, Denver, CO, 2004.
S. Chi and Torres-Verdín, C., “Invasion correction of acoustic logs in a gas reservoir (Expanded Abstract),” Society of Exploration Geophysicists 74th Annual International Meeting. Society of Exploration Geophysicists, Denver, CO, 2004.
A. Contreras and Torres-Verdín, C., “AVA sensitivity analysis and inversion of 3D pre-stack seismic data to delineate a mixed carbonate-siliciclastic reservoir in the Barinas-Apure Basin,” Society of Exploration Geophysicists 74th Annual International Meeting. Society of Exploration Geophysicists, Denver, CO, 2004.
G. Gao and Torres-Verdín, C., “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,” Society of Exploration Geophysicists 74th Annual International Meeting. Society of Exploration Geophysicists, Denver, CO, 2004.

2003

B. K. George, Torres-Verdín, C., Delshad, M., Sigal, R., Zouioueche, F., and Anderson, B., “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 44th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Galveston, TX, 2003.
O. F. Alpak, Habashy, T. M., Torres-Verdín, C., and Dussan, E. V., “Joint inversion of pressure and time-lapse electromagnetic logging measurements (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts 44th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Galveston, TX, 2003.
O. J. Varela, Torres-Verdín, C., and Sen, M. K., “Enforcing smoothness and assessing uncertainty in one-dimensional pre-stack seismic inversion (Expanded Abstract),” European Association of Geoscientists and Engineers 65th Annual Conference and Exhibition. European Association of Geoscientists and Engineers, Stavanger, Norway, 2003.
S. Fang, Gao, G., and Torres-Verdín, C., “ Efficient 3-D Electromagnetic Modeling in the Presence of Anisotropic Conductive Media Using Integral Equations: Three-Dimensional Electromagnetics Workshop No,” Three-Dimensional Electromagnetics Workshop No. 3. Adelaide, Australia, 2003.
G. Gao, Fang, S., and Torres-Verdín, C., “A New Approximation for 3D Electromagnetic Scattering in the Presence of Anisotropic Conductive Media,” Three-Dimensional Electromagnetics Workshop No. 3. Adelaide, Australia, 2003.
J. Hou and Torres-Verdín, C., “Finite-difference modeling of EM fields using coupled potentials in 3D anisotropic media: applications to borehole logging (Expanded Abstract),” Society of Exploration Geophysicists 73th Annual International Meeting. Society of Exploration Geophysicists, Dallas, TX, 2003.
C. Torres-Verdín, Alpak, O. F., J., W., Gao, G., Hou, J., Varela, O. J., Gambús-Ordaz, M., Chi, S., and Toumelin, E., “A multi-physics, integrated approach to formation evaluation using borehole geophysical measurements and 3D seismic data (Expanded Abstract),” Society of Exploration Geophysicists 73th Annual International Meeting. Society of Exploration Geophysicists, Dallas, TX, 2003.
Z. Wu, Alpak, F. O., and Torres-Verdín, C., “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 2003 Annual International Meeting. Society of Petroleum Engineers, Denver, CO, 2003.
J. Wu, Torres-Verdín, C., Sepehrnoori, K., Proett, M. A., and Van Dalen, S. C., “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 44th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Galveston, TX, 2003.
G. Gao and Torres-Verdín, C., “Fast inversion of borehole array induction data using an inner-outer loop optimization technique (Expanded Abstract),” Society of Petrophysicists and Well Log Analysts 44th Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Galveston, TX, 2003.
G. D. Merletti, Hlebszevitsch, J. C., and Torres-Verdín, C., “Geostatistical inversion for the lateral delineation of thin-layer hydrocarbon reservoirs: a case study in San Jorge Basin,” Society of Exploration Geophysicists 73th Annual International Meeting. Society of Exploration Geophysicists, Dallas, TX, 2003.
O. J. Varela, Torres-Verdín, C., and Sen, M. K., “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 73th Ann,” Society of Exploration Geophysicists 73th Annual International Meeting. Society of Exploration Geophysicists, Dallas, TX, 2003.

2002

E. Toumelin, Torres-Verdín, C., Chen, S., and Fischer, M., “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 43rd Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Oiso, Japan, 2002.
O. F. Alpak, Habashy, T. M., Dussan, E. V., and Torres-Verdín, C., “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 43rd Annual Logging Symposium. Society of Petrophysicists and Well Log Analysts, Oiso, Japan, 2002.
O. J. Varela, Torres-Verdín, S., K., M., and Roy, I. G., “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 64th Annual Conference and Exhibition. European Association of Geoscientists and Engineers, Florence, Italy, 2002.
J. Wu, Torres-Verdín, C., Proett, M., Sepehrnoori, K., and Belanger, D. L., “Inversion of multi-phase petrophysical properties using pumpout sampling data acquired with a wireline formation tester (Expanded Abstract),” Society of Petroleum Engineers 2002 Annual International Meeting. Society of Petroleum Engineers, San Antonio, TX, 2002.
E. Toumelin, Torres-Verdín, C., and Chen, S., “Quantification of multi-phase fluid saturations in complex pore geometries from simulations of nuclear magnetic resonance measurements (Expanded Abstract),” Society of Petroleum Engineers 2002 Annual International Meeting. Society of Petroleum Engineers, San Antonio, TX, 2002.
C. Torres-Verdín, Wu, Z., Varela, O. J., Sen, M. K., and Roy, I. G., “Joint inversion of reservoir production measurements and 3D pre-stack seismic data: proof of concept (Expanded Abstract),” Society of Exploration Geophysicists 72th Annual International Meeting. Society of Exploration Geophysicists, Salt Lake City, UT, 2002.
I. G. Roy, Sen, M. K., Torres-Verdín, C., and Varela, O. J., “Pre-stack inversion of a Gulf of Thailand OBC data set (Expanded Abstract),” Society of Exploration Geophysicists 72th Annual International Meeting. Society of Exploration Geophysicists, Salt Lake City, UT, 2002.
M. Gambus, Torres-Verdín, C., and Schile, C. A., “High-resolution geostatistical inversion of a seismic data set acquired in a Gulf of Mexico gas reservoir (Expanded Abstract),” Society of Exploration Geophysicists 72th Annual International Meeting. Society of Exploration Geophysicists, Salt Lake City, UT, 2002.
F. O. Alpak, Torres-Verdín, C., Sepehrnoori, K., and Fang, S., “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,” Society of Petroleum Engineers 2002 Annual International Meeting. Society of Petroleum Engineers, San Antonio, TX, 2002.
O. J. Varela, Torres-Verdín, C., and Lake, L., “Assessing the value of 3D seismic data in reducing uncertainty in reservoir production forecasts (Expanded Abstract),” Society of Petroleum Engineers 2002 Annual International Meeting. Society of Petroleum Engineers, San Antonio, TX, 2002.

2001

J. Wu, Torres-Verdín, C., Sepehrnoori, K., and Delshad, M., “Numerical simulation of mud-filtrate invasion in deviated wells (Expanded Abstract),” Society of Petroleum Engineers 2001 Annual International Meeting. Society of Petroleum Engineers, New Orleans, LA, 2001.
F. O. Alpak, Torres-Verdín, C., and Sepehrnoori, K., “Numerical simulation and inversion of pressure data acquired with permanent sensors (Expanded Abstract),” Society of Petroleum Engineers 2001 Annual International Meeting. Society of Petroleum Engineers, New Orleans, LA, 2001.
M. Victoria, Merletti, G., Grijalba-Cuenca, A., and Torres-Verdín, C., “Lateral and vertical discrimination of thin-bed fluvial reservoirs: geostatistical inversion of a 3D data set (Expanded Abstract),” Society of Petroleum Engineers 2001 Latin American and Caribbean Petroleum Engineering Conference. Society of Petroleum Engineers, Buenos Aires, Argentina, 2001.
C. Torres-Verdín, Grijalba-Cuenca, A., and Debeye, H., “A comparison between geostatistical inversion and conventional geostatistical simulation practices for reservoir delineation (Expanded Abstract),” American Association of Petroleum Geologists Hedberg Research Conference on Applied Reservoir Characterization Using Geostatistics. American Association of Petroleum Geologists, The Woodlands, TX, 2001.

2000

C. Torres-Verdín, Chunduru, R. K., and Mezzatesta, A. G., “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 2000 Annual International Meeting. Society of Petroleum Engineers, Dallas, TX, 2000.
A. Grijalba-Cuenca, Torres-Verdín, C., and Debeye, H., “Geostatistical inversion of 3D seismic data to extrapolate petrophysical variables laterally away from the well (Expanded Abstract),” Society of Petroleum Engineers 2000 Annual International Meeting. Society of Petroleum Engineers, Dallas, TX, 2000.

1999

A. Malinverno and Torres-Verdín, C., “Bayesian inversion of DC electrical measurements applied to reservoir monitoring: (Expanded Abstract),” Society of Exploration Geophysicists 69th Annual International Meeting. Society of Exploration Geophysicists, Houston, TX, 1999.
C. Torres-Verdín, Victoria, M., Merletti, G., and Pendrel, J., “Trace-based and geostatistical inversion of 3-D seismic data for thin-sand delineation,” Society of Exploration Geophysicists 69th Annual International Meeting. Society of Exploration Geophysicists, Houston, TX, 1999.

1997

T. M. Habashy and Torres-Verdín, C., “A nonlinear scattering approximation using an efficient Green’s function representation for the rapid numerical simulation and inversion of large-scale electromagnetic problems: (Expanded Abstract), INVITED, Leo Felsen, session organizer: Complexity of E,” International Conference on Electromagnetics in Advanced Applications (ICEAA 97). Torino, Italy, 1997.

1995

E. C. Slob, Habashy, T. M., and Torres-Verdín, C., “Stable numerical wavefield transforms of TEM data (Expanded Abstract),” 4th International Congress of the Brazilian Geophysical Society. Brazilian Geophysical Society, Rio de Janeiro, Brazil, 1995.
E. C. Slob, Habashy, T. M., and Torres-Verdín, C., “A new stable numerical procedure for computing the q-transform of TEM data (Expanded Abstract),” 57th EAGE Conference and Technical Exhibition. EAGE, Glasgow, Scotland, 1995.
M. Wilt, Schenkel, C., Torres-Verdín, C., Lee, K. H., and Tseng, H., “Crosshole EM for Reservoir Characterization and EOR Monitoring: Field Examples (Expanded Abstract),” UNITAR International Conference on Heavy Crude and Tar Sands. UNITAR, Houston, TX, 1995.
T. M. Habashy, Torres-Verdín, C., Oristaglio, M., and de Hoop, A., “An overview of recent advances in the inversion of large-scale electromagnetic data (Expanded Abstract),” International Symposium on Three-Dimensional Electromagnetics. Ridgefield, CT, 1995.

1994

C. Torres-Verdín and Habashy, T. M., “A Two-Step Linear Inversion Approach for the Reconstruction of Two-Dimensional Distributions of Electrical Conductivity (Expanded Abstract),” 1994 International Symposium on AE/Aerospace Sensing, (INVITED) Special session Inverse Optics III. Society of Photo-Optical Instrumentation Engineers, Orlando, Florida, 1994.
M. Wilt, Schenkel, C., Torres-Verdín, C., Lee, K. H., and Tseng, H., “Crosshole EM for Reservoir Characterization and EOR Monitoring: Field Examples (Expanded Abstract),” Society of Exploration Geophysicists 64th Annual International Meeting. Society of Exploration Geophysicists, Houston, TX, 1994.
K. H. Lee, Xie, G. Q., Habashy, T. M., and Torres-Verdín, C., “Wavefield Transform of Electromagnetic Fields (Expanded Abstract),” Society of Exploration Geophysicists 64th Annual International Meeting. Society of Exploration Geophysicists, Houston, TX, 1994.
C. Torres-Verdín and Habashy, T. M., “Un Nuevo Método de Inversión No Lineal y su Aplicación en Tomografía Electromagnética (Expanded Abstract, INVITED),” IV Simposium de Geofísica, Asociación Mexicana de Geofísicos de Exploración. Asociación Mexicana de Geofísicos de Exploración, A.C., Mexico, 1994.

1993

C. Torres-Verdín and Habashy, T. M., “Cross-Well Electromagnetic Tomography (Expanded Abstract, INVITED): 3rd International Congress of the Brazilian Geophysical Society, Rio de Janeiro, Brazil,” 3rd International Congress of the Brazilian Geophysical Society. Society of Photo-Optical Instrumentation Engineers, Rio de Janeiro, Brazil, 1993.
F. J. Kuchuk, Habashy, T. M., and Torres–Verdín, C., “A Nonlinear Approximation for the Pressure Behavior of Heterogeneous Reservoirs (Expanded Abstract),” Proceedings of the 68th Annual Technical Conference and Exhibition of the Society of Petroleum Engineers. Society of Petroleum Engineers, Houston, TX, 1993.
C. Torres-Verdín and Habashy, T. M., “1993, An Approach to Nonlinear Inversion with Applications to Cross-Well Electromagnetic Tomography (Expanded Abstract): Society of Exploration Geophysicists (SEG) 63rd Ann,” Society of Exploration Geophysicists 63rd Annual International Meeting. Society of Exploration Geophysicists, Washington, DC, 1993.

1992

Y. Shoham, Morrison, H. F., and Torres-Verdín, C., “Electromagnetic mapping of electrical conductivity beneath the Columbia basalt (Expanded Abstract): Eur,” European Assotiation Geoscientists & Engineers 54rd Annual International Meeting. European Assotiation. Geoscientists. & Engineers, Paris, France, 1992.

1991

C. Torres-Verdín and Morrison, H. F., “Magnetotelluric analysis in the wavenumber domain (Expanded Abstract): Eur,” European Assotiation Geoscientists & Engineers 53rd Annual International Meeting. European Assotiation. Geoscientists. & Engineers, Florence, Italy, 1991.

1990

H. F. Morrison, Nichols, E. A., Torres-Verdín, C., Booker, J. R., and Constable, S. C., “A comparison of magnetotelluric inversion techniques on a mineral prospect in Nevada: (Expanded Abstract): Soc,” Society of Exploration Geophysicists 60th Annual International Meeting. Society of Exploration Geophysicists, San Francisco, CA, 1990.