UT Shield

Carlos Torres-Verdin

Professor, UT Petroleum & Geosystems Engineering Dept

Publications

Journal Publications in Press

Deng, T., Ambia, J., and Torres-Verdín, C., 2022, Interpretation of well logs and core data via Bayesian inversion: Geophysics, accepted for publication.

Amaro-Estrada, J.I., Wang, Y., and Torres-Verdín, C., 2022, Quantifying the effect of spatial confinement on the diffusion and NMR relaxation of water/hydrocarbon mixtures: A molecular dynamics simulation study: Langmuir, accepted for publication.

Albusairi, M. and Torres-Verdín, C., 2022, Fast-forward modeling of borehole NMR measurements acquired in deviated wells and spatially heterogeneous formations: Geophysics, accepted for publication.

Deng, T., Ambia, J., and Torres-Verdín, C., 2022, Efficient Bayesian inversion of borehole geophysical measurements with a gradient-based Markov chain Monte Carlo method: Geophysical Prospecting, accepted for publication.

 

2022

Pan, W., Jo., H., Santos, J.E., Torres-Verdín, C., and Pyrcz, M.J., 2022, Hierarchical machine learning workflow for conditional and multiscale deepwater reservoir modeling: AAPG Bulletin, v. 106, no. 11, pp. 2163-2186.

Schroeder, C. D. and Torres-Verdín, C., 2022, Mud-filtrate invasion in laminated and spatially heterogeneous rocks: high-resolution in-situ visualization and analysis using time-lapse X-ray microcomputed tomography (micro-CT): Petrophysics, v. 63, no. 5, pp. 614-641.

Sun, Z. and Torres-Verdín, C., 2022, The role of pore-shape and pore-space heterogeneity in non-Archie behavior of resistivity index curves: Journal of Geophysical Research – Solid Earth, v. 127, issue 9, pp. 1-15.

Noh, K., Torres-Verdín, C., and Pardo, D., 2022, Real-time 2.5D inversion of LWD resistivity measurements using deep learning for geosteering applications across faulted formations: Petrophysics, v. 63, no. 4, pp. 506-518.

Noh, K., Pardo, D., and Torres-Verdín, C., 2022, 2.5D deep learning inversion of LWD and deep-sensing EM measurements across formations with dipping faults: IEEE Geoscience and Remote Sensing Letters, v. 19, pp. 1-5.

Garcia, P., Heidari, Z., and Torres-Verdín, C., 2022, Multifrequency inversion of complex electrical conductivity measurements for simultaneous assessment of wettability, porosity, and water saturation: SPE Reservoir Evaluation and Engineering, v. 25, no. 2, pp. 177-196.

Aérens, P., Medellin, D., and Torres-Verdín, C., 2022, Quality control of nuclear magnetic resonance measurements using pseudo-T2 distributions: SPE Reservoir Evaluation and Engineering, v. 25, no. 2, pp. 163-176.

Jahani, N., Ambia, J., Alyaev, S., Fossum, K., Sutter, E., and Torres-Verdín, C., 2022, Ensemble-based well-log interpretation and uncertainty quantification for well geosteering: Geophysics, v. 87, no. 3, pp. IM57–IM66.

Escobar, J. D. and Torres-Verdín, C., 2022, Efficient estimation of aquifer intrinsic permeability anisotropy using perturbation theory: Computer and Geosciences, v. 159, February, pp. 1-12.

Bautista-Anguiano, J., and Torres-Verdín, C., 2022, Inversion-based interpretation of borehole spontaneous potential measurements for accurate estimation of water resistivity in the presence of shoulder-bed and mud-filtrate invasion effects: Geophysics, v. 87, no. 2, pp. D47-D65.

Schroeder, C. D. and Torres-Verdín, C., 2022, In-situ visualization and characterization of filter-cake deposition using time-lapse micro-CT imaging: Petrophysics, v. 63, no. 2, pp. 199-217.

2021

Sun, Z., Mehmani, A., and Torres-Verdín, C., 2021, Pore-scale investigation of the electrical resistivity of saturated porous media: flow patterns and porosity efficiency: Journal of Geophysical Research – Solid Earth, v. 126, issue 12, pp. 1-15.

Albusairi, M. and Torres-Verdín, C., 2021, Rapid modeling of borehole measurements
of nuclear magnetic resonance via spatial sensitivity functions: Geophysics, v. 86, no. 5, pp. D149-D176.

Xu, S., Tang, X., Chen, M., Su, Y., Qian, Y., Sun, D., and Torres-Verdín, C., 2021, Estimation of directional crack density and fluid properties from well logs in vertical wells: Geophysics, v. 86, no. 4, pp. D113-D124.

Xu, S., Tang, X., Torres-Verdín, C., Zheng, L., and Su, Y. D., 2021, Evaluation of 3D shear-wave anisotropy based on elastic-wave velocity variations around the borehole: Geophysics, v. 86, mo. 3, pp. D103-D112.

Pan, W., Torres-Verdín, C., and Pyrcz, M.J., 2021, Stochastic Pix2pix: A new machine learning method for geophysical and well conditioning of rule-based channel reservoir models: Natural Resources Research, v. 30, no. 2, pp. 1319-1345.

Shahriari, M., Pardo, D., Rivera, J.A., Torres-Verdín, C., Picon, A., Del Ser, J., Ossandón, S., and Calo, V., 2021, Error control and loss functions for the deep learning inversion of borehole resistivity measurements: International Journal for Numerical Methods in Engineering, v. 122, Issue 6, pp. 1629-1657.

Sun, Z., Mehmani, A., and Torres-Verdín, C., 2021, SuBPore-scale trapping mechanisms following imbibition: A microfluidics investigation of surface roughness effects: Water Resources Research, v. 57, issue 2, pp. 1-16.

2020

Bautista-Anguiano, J., and Torres-Verdín, C., 2020, Estimation of in situ hydrocarbon saturation of porous rocks from borehole measurements of spontaneous potential: Geophysics, v. 85, no. 6, pp. D199–D217.

González-Flores, E., Campos-Enríquez, O., Valenzuela-Wong, R., Torres-Verdín, C., Rivera-Recillas, D.E., and Camacho-Ramírez, E., 2020, Shallow structure of the Chalco and Xochimilco sub-basins (Southern Mexico Basin) based on wave propagation modeling and seismic data: Journal of South American Earth Sciences, v. 103, November Issue, pp. 102722(1-14).

Lee, H., and Torres-Verdín, C., 2020, Compositions of liquid mixtures from near-infrared spectrum data via radial basis functions and artificial neural networks: Vibrational Spectroscopy, v. 110, September Issue, pp. 103108.

Kelly, S., Mehmani, A., and Torres-Verdín, C., 2020, Leveraging digital rock physics workflows in unconventional petrophysics: A review of opportunities, challenges, and benchmarking: Journal of Petroleum Science and Engineering, v. 190, Issue July, pp. 1-12.

Du, Y., Mehmani, A., Xu, K., Kelly, S., Balhoff, M., and Torres-Verdín, C., 2020, Microfluidic diagnostics of the impact of local microfracture connectivity on hydrocarbon recovery following water injection: Water Resources Research, v. 56, issue 7, pp. 1-21.

Bautista-Anguiano, J., Torres-Verdín, C., and Strobel, J., 2020, Mechanistic 3D finite-difference simulation of borehole spontaneous potential measurements: Geophysics, v. 85, no. 4, pp. D105-D119.

Shahriari, M., Pardo, D., Picón, A., Galdran, A., Del Ser, J., and Torres-Verdín, C., 2020, A deep learning approach to the inversion of borehole resistivity measurements: Computational Geosciences, v. 29, no. 3, pp. 971–994.

Xu, S., Tang, X., Su, Y. D., and Torres-Verdín, C., 2020, Crack-induced shear-wave orthorhombic anisotropy: Modeling and inversion of shear-wave borehole measurements: Journal of Geophysical Research, Solid Earth, v. 125, issue 3, pp. 1-19.

Maalouf, E., Torres-Verdín, C., and Liu, J., 2020, Application of Backus average to simulate acoustic logs in thinly bedded formations: Geophysics, v 85, no. 3, pp. D93-D104.

Luycx, M., Bennis, M., Torres-Verdín, C., and Preeg, W., 2020, Simulation of borehole nuclear measurements: A practical tutorial guide for implementation of Monte Carlo methods and approximations based on flux sensitivity functions: Petrophysics, v. 61, no. 1, pp. 4-36.

2019

Mehmani, A., Kelly, S., Torres-Verdín, C., and Balhoff, M., 2019, Capillary trapping following imbibition in porous media: Microfluidic quantification of the impact of pore-scale surface roughness: Water Resources Research, v. 55, issue 11, pp. 9905-9925.

Mehmani, A., Kelly, S., and Torres-Verdín, C., 2019, Review of micro/nanofluidic insights on fluid transport controls in tight rocks: Petrophysics, v. 60, no. 6, pp. 872-890.

Schroeder, C. and Torres-Verdín, C., 2019, Experimental method for time-lapse micro-CT imaging of mud-filtrate invasion and mudcake deposition: Petrophysics, v. 60, no. 5, pp. 620-630.A. Mehmani, Kelly, S., Torres-Verdín, C., and Balhoff, M., Residual oil saturation following gas injection in sandstones: microfluidic quantification of the impact of pore-scale surface roughness: Fuel, v. 251, September Issue, pp. 147-161, 2019.

J. D. Escobar and Torres-Verdin, C., Permeability sensitivity functions and rapid simulation of multi-point pressure measurements using perturbation theory: Advances in Water Resources, v. 129, July Issue, pp. 198-209, 2019.

M. Luycx and Torres-Verdín, C., “Fast modeling of gamma-gamma density measurements via gamma-ray point kernel approximations”, Geophysics, v. 84, no. 2, pp. D57-D72, 2019.

Luycx, M. and Torres-Verdín, C., “Physics, applications, and limitations of borehole neutron-gamma density measurements: Geophysics”, v. 84, no. 1, pp. D39-D56, 2019.

Medellin, D., Ravik, V., and Torres-Verdín, C., “Nonlinear mixing law for magnetic resonance transverse-relaxation measurements of dispersed mixtures: Geophysics”, v. 84, no. 1, pp. MR1-MR11, 2019.

Medellin, D., Ravik, V., and Torres-Verdín, C., “Pore-size-dependent fluid substitution method for magnetic resonance measurements”, Geophysics, v. 84, no. 1, pp. D25-D38, 2019.

Ramos, M. J., Espinoza, D. N., Torres-Verdín, C., and Laubach, S., “Quantifying static and dynamic stiffness anisotropy and nonlinearity in finely laminated shales: Experimental measurement and modeling Geophysics”, v. 84, no. 1, pp. MR25-MR36 2019.

Ghanbarian, B., Torres-Verdín, C., Lake, L. W., and Marder, M., “Gas permeability in unconventional tight sandstones: scaling up from pore to core”, Journal of Petroleum Science and Engineering, v. 173, Issue February 2019, pp. 1163-1172, 2019.

Ramos, M. J., Espinoza, D. N., Goldfarb, E. J., Tisato, N., Laubach, S., and Torres-Verdín, C., “Microstructural controls on elastic anisotropy of finely laminated Mancos Shale”, Geophysical Journal International, v. 216, Issue 2, pp. 991-1004, 2019.

2018

M. Luycx and Torres-Verdín, C., “Rapid forward modeling of logging-while-drilling neutron-gamma density measurements”, Geophysics, v. 83, no. 6, pp. D231-D246, 2018.

E. Maalouf and Torres-Verdín, C., “Interpretation of borehole flexural measurements in high-angle wells using 3D spatial sensitivity functions”, Geophysics, v. 83, no. 6, pp. D217-D229, 2018.

E. Maalouf and Torres-Verdín, C., “Interpretation of borehole sonic measurements acquired in VTI formations penetrated by vertical wells”, Geophysics, v. 83, no. 6, pp. D187-D202, 2018.

A. Rodriguez-Rozas, Pardo, D., and Torres-Verdín, C., “Fast 2.5D finite element simulations of borehole resistivity measurements”, Computational Geosciences, v. 22, no. 5, pp. 1271-1281, 2018.

S. Xu, Tang, X., Torres-Verdín, C., and Su, Y., “Seismic shear wave anisotropy in cracked rocks and an application to hydraulic fracturing”, Geophysical Research Letters, v. 45, no. 11, pp 5390-5397, 2018.

V. Puzyrev, Calo, V., and Torres-Verdín, C., “Interpretation of deep directional resistivity measurements acquired in high-angle and horizontal wells using 3D inversion”, Geophysical Journal International, v. 213, no. 2, pp. 1135-1145, 2018.

J. D. Escobar and Torres-Verdin, C., “Permeability sensitivity functions and rapid simulation of hydraulic-testing measurements using perturbation theory”, Water Resources Research, v. 54, pp. 1977-1998, 2018.

J. Shiriyev, Brick, Y., Zhang, P., Yilmaz, A. E., Torres-Verdín, C., Sharma, M., Hosbach, T., Oerkfitz, M. A., and Gabelmann, J., “Experiments and simulations of a prototype tri-axial electromagnetic induction logging tool for open-hole hydraulic fracture diagnostics”, Geophysics, v. 83, no. 3, pp. D7-D81, 2018.

E. Maalouf and Torres-Verdín, C., “Inversion-based method to mitigate noise in borehole sonic logs”, Geophysics, v. 83, no. 2, pp. D61-D71, 2018.

2017

S. Misra, Torres-Verdín, C., Homan, D., and Rasmus, J., “Dispersive and directional effective electrical conductivity and dielectric permittivity of conductive-mineral-bearing samples derived from multi-frequency tensor electromagnetic induction measurements,” Geophysics, vol. 82, no. 4, pp. D211-D223, 2017.

J. Shiriyev, Brick, Y., Zhang, P., Yilmaz, A. E., Torres-Verdín, C., Sharma, M., Hosbach, T., Oerkfitz, M. A., and Gabelmann, J., “Experiments and simulations of a prototype tri-axial electromagnetic induction logging tool for open-hole hydraulic fracture diagnostics,” Geophysics, vol. 83, no. 3, pp. D7-D81, 2017.

S. A. Bakr, Pardo, D., and Torres-Verdín, C., “Fast inversion of logging-while-drilling resistivity measurements acquired in multiple wells,” Geophysics, vol. 82, no. 3, pp. E111-E120, 2017.

A. Frooqnia, Torres-Verdín, C., and Sepehrnoori, K., “Inference of near-borehole permeability and water saturation from time-lapse oil-water production logs,” Journal of Petroleum Science and Engineering, vol. 152, no. April 2017, pp. 116-135, 2017.

S. Kelly, Torres-Verdín, C., and Balhoff, M., “Influence of polarity and hydration cycles on imbibition hysteresis in silica nanochannels,” Physical Chemistry Chemical Physics, vol. 20, pp. 456-466, 2017.

E. Maalouf and Torres-Verdín, C., “Inversion-based method to mitigate noise in borehole sonic logs,” Geophysics, vol. 83, no. 2, pp. D61-D71, 2017.

R. Victor, Prodanović, M., and Torres-Verdín, C., “Monte Carlo approach for estimating density and atomic number from dual-energy computed tomography images of carbonate rocks,” Journal of Geophysical Research – Solid Earth, vol. 122, pp. 9804-9824, 2017.

R. Wang, Herrera, W., and Torres-Verdín, C., “Simulation and interpretation of sonic waveforms in high-angle and horizontal wells,” Geophysics, vol. 82, no. 4, pp. D251-D263, 2017.

A. Frooqnia, Torres-Verdín, C., Sepehrnoori, K., and Abdhollah-Pour, R., “Transient coupled borehole/formation fluid-flow model for interpretation of oil/water production logs,” SPE Journal, vol. 22, no. 1, pp. 389-406, 2017.

M.J. Ramos, Espinoza, D. N., and Torres-Verdín, C., “Use of shear-wave anisotropy to quantify the onset of stress-induced microfracturing,” Geophysics, vol. 82, no. 6, pp. MR201-MR212, 2017.

W. F. Woodruff, Lewan, M. D., Revil, A., and Torres-Verdín, C., “Complex electrical conductivity changes associated with hydrous pyrolysis maturation of the Woodford Shale.,” Geophysics, vol. 82, no. 2, pp. D83-D104, 2017.
P. Sayar and Torres-Verdín, C., “Effective-medium modeling of velocity dispersion and attenuation in isotropic rocks.,” Geophysics, vol. 82, no. 2, pp. D133-D154, 2017.
S. Huang and Torres-Verdín, C., “Fast-forward modeling of compressional arrival slowness logs in high-angle and horizontal wells.,” Geophysics, vol. 82, no. 2, pp. D105-D120, 2017.
C. van der Hoeven, Montgomery, M., Sablan, G., Schneider, E., and Torres-Verdín, C., “Gadolinium tracers for enhancement of Sigma-log contrast measurements.,” Geophysics, vol. 82, no. 1, pp. EN13-EN24, 2017.
K. Yang, Yilmaz, A. E., and Torres-Verdín, C., “A goal oriented framework for rapid integral-equation-based simulation of borehole resistivity measurements of 3D hydraulic fractures.,” Geophysics, vol. 82, no. 2, pp. D121-D131, 2017.
E. Ortega, Luycx, M., Torres-Verdín, C., and Preeg, W. E., “Joint petrophysical interpretation of multi-detector nuclear measurements in the presence of invasion, shoulder-bed, and well-deviation effects.,” Geophysics, vol. 82, no. 1, pp. D13-D30, 2017.

2016

S. Kelly, El-Sobky, H., Torres-Verdín, C., and Balhoff, M., “Assessing the utility of FIB-SEM images for shale digital rock physics.,” Advances in Water Research, vol. 95, no. September, pp. 302-316, 2016.
C. Xu, Yang, Q., and Torres-Verdín, C., “Bayesian rock classification and petrophysical uncertainty characterization with fast well-log forward modeling in thin-bed reservoirs,” Interpretation, vol. 4, no. 2, pp. SF19-SF29, 2016.
O. Ajayi and Torres-Verdín, C., “Improved in-situ mineral and petrophysical interpretation with neutron-induced gamma-ray spectroscopy elemental logs,” Interpretation, vol. 4, no. 2, pp. SF31-SF53, 2016.
S. Huang and Torres-Verdín, C., “Inversion-based interpretation of borehole sonic measurements using semi-analytical spatial sensitivity functions,” Geophysics, vol. 81, no. 2, pp. D111-D124, 2016.
P. Sayar and Torres-Verdín, C., “Using anisotropic effective medium theories to quantify elastic properties of sandstone-shale laminated rocks,” Geophysics, vol. 81, no. 4, pp. D315-D333, 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.,” Petrophysics, vol. 57, no. 5, pp. 447-464, 2016.
S. Kelly, Torres-Verdín, C., and Balhoff, M., “Anomalous liquid imbibition at the nanoscale: the critical role of interfacial deformations.,” Nanoscale, vol. 8, no. 5, pp. 2751-2767, 2016.
R. Pour, Torres-Verdín, C., Sepehrnoori, K., and Nasizadeh, Z., “Depth variation of wettability alteration during oil-base mud-filtrate invasion and corresponding effects on resistivity logs.,” Journal of Petroleum Science and Engineering, vol. 147, no. November, pp. 593-604, 2016.
K. Yang, Torres-Verdín, C., and Yilmaz, A. E., “Detection and quantification of 3D hydraulic fractures with vertical borehole induction resistivity measurements.,” Geophysics, vol. 81, no. 4, pp. E259-E264, 2016.
A. Frooqnia, Torres-Verdín, C., and Sepehrnoori, K., “Inference of rock pressure-production properties from gas-oil production logs.,” Journal of Natural Gas and Engineering, vol. 36, Part A, no. November, pp. 124-143, 2016.
D. Medellin, Ravi, V. R., and Torres-Verdín, C., “Multidimensional NMR inversion without Kronecker products: Multilinear inversion,” Journal of Magnetic Resonance, vol. 269, no. August, pp. 24-35, 2016.
B. Ghanbarian, Torres-Verdín, C., and Skaggs, T., “Quantifying tight-gas sandstone permeability via critical path analysis.,” Advances in Water Research, vol. 92, no. June, pp. 316-322, 2016.
S. A. Kelly, Torres-Verdín, C., and Balhoff, M., “Subsurface to substrate: dual-scale micro/nanofluidic networks for investigating transport anomalies in tight porous media.,” Lab on a Chip, vol. 16, no. 15, pp. 2829-2839, 2016.
S. Misra, Torres-Verdín, C., Revil, A., Rasmus, J., and Homan, D., “Interfacial polarization of disseminated conductive minerals in absence of redox-active species, Part 2: Effective electrical conductivity and dielectric permittivity,” Geophysics, vol. 81, no. 2, pp. E159-E176, 2016.
S. Misra, Torres-Verdín, C., Revil, A., Rasmus, J., and Homan, D., “Interfacial polarization of disseminated conductive minerals in absence of redox-active species, Part 2: Effective electrical conductivity and dielectric permittivity,” Geophysics, vol. 81, no. 2, pp. E159-E176, 2016.
O. Ajayi, Torres-Verdín, C., and Preeg, W. E., “Inversion-based interpretation of logging-while-drilling gamma-ray spectroscopy measurements.,” Geophysics, vol. 81, no. 1, pp. D9-D34, 2016.
E. Ortega and Torres-Verdín, C., “New analytical method to calculate matrix- and fluid-corrected total porosity in organic shale: SPE Reservoir Evaluation and Engineering,” SPE Reservoir Evaluation and Engineering, vol. 18, no. 4, pp. 609-623, 2016.
O. Ajayi and Torres-Verdín, C., “Petrophysical interpretation of LWD, neutron-induced gamma-ray spectroscopy measurements: an inversion-based approach,” Petrophysics, vol. 56, no. 4, pp. 358-378, 2016.

2015

E. Ortega, Torres-Verdín, C., and Preeg, W. E., “2D inversion-based interpretation of logging-while-drilling thermal-neutron and gamma-ray time decays,” Geophysics, vol. 80, no. 3, 2015. Publisher’s Version
K. Yang, Torres-Verdín, C., and Yilmaz, A. E., “Detection and quantification of three-dimensional hydraulic fractures with horizontal borehole resistivity measurements,” IEEE Transactions on Geoscience and Remote Sensing (TGRS), vol. 53, no. 8, pp. 4605–4615, 2015.
D. Pardo and Torres-Verdín, C., “Fast 1D inversion of logging-while-drilling resistivity measurements for improved estimation of formation resistivity in high-angle and horizontal wells,” Geophysics, vol. 80, no. 2, pp. E111-E124, 2015.
O. Ajayi, Torres-Verdín, C., and Preeg, W. E., “Fast numerical simulation of logging-while-drilling gamma-ray spectroscopy measurements,” Geophysics, vol. 80, no. 5, pp. D501-D523, 2015.
W. Li, Tao, G., Matuszyk, P., and Torres-Verdín, C., “Forward and backward amplitude and phase estimation method for dispersion analysis of borehole sonic measurements,” Geophysics, vol. 80, no. 3, pp. D295-D308, 2015.
W. F. Woodruff, Revil, A., Prasad, M., and Torres-Verdín, C., “Measurements of elastic and electrical properties of an unconventional organic shale under differential loading,” Geophysics, vol. 80, no. 4, pp. D363-D383, 2015.
S. Kelly, Balhoff, M., and Torres-Verdín, C., “Quantification of bulk solution limits for liquid and interfacial transport in nano-confinements,” Langmuir, vol. 31, no. 7, pp. 2167–2179, 2015.
I. Muga, Pardo, D., Matuszyk, P., and Torres-Verdín, C., “Semi-analytical response of acoustic logging measurements in frequency domain,” Computers and Mathematics with Applications, vol. 70, no. 4, pp. 314-329, 2015.
S. Huang, Matuszyk, P., and Torres-Verdín, C., “Spatial sensitivity functions for rapid numerical simulation of borehole sonic measurements in vertical wells,” Geophysics, vol. 80, no. 5, pp. D459-D480, 2015.
A. Hadibeik, Abdollah-Pour, R., Torres-Verdín, C., Sepehrnoori, K., and Shabro, V., “Streamline-based inversion of formation properties from formation-tester measurements acquired in high-angle and horizontal wells,” Journal of Petroleum Science and Engineering, vol. 128, no. April, pp. 98-106, 2015.
Q. Yang and Torres-Verdín, C., “Joint interpretation and uncertainty analysis of petrophysical properties in unconventional shale reservoirs,” Interpretation, vol. 3, no. 1, pp. SA33-SA49, 2015.

2014

E. Ortega, Torres-Verdín, C., Preeg, W. E., and Miles, J., “1D radial inversion of multi-detector logging-while-drilling Sigma measurements,” Geophysics, vol. 79, no. 5, pp. D363-D384, 2014.
R. Abdollah-Pour, Torres-Verdín, C., Sepehrnoori, K., and Spain, D., “Quantification of the effects of bed lamination and wellbore deviation on the interpretation of formation-tester measurements,” Journal of Petroleum Science and Engineering, vol. 120, no. August , pp. 177-186, 2014.
E. Ortega, Torres-Verdín, C., and Preeg, W. E., “Rapid forward modeling of multi-detector logging-while-drilling Sigma measurements,” Geophysics, vol. 79, no. 4, pp. D253-D273, 2014.
A. Hadibeik, Proett, M., Torres-Verdín, C., K., S., and Angeles, R., “Sampling with new focused, oval, and conventional probe-type formation tester in the presence of water- and oil-base mud-filtrate invasion for vertical and high-angle wells,” Journal of Petroleum Science and Engineering, vol. 118, no. June , pp. 114-125, 2014.
A. Revil, Kessouri, P., and Torres-Verdín, C., “Electrical conductivity, induced polarization, and permeability of the Fontainebleau sandstone,” Geophysics, vol. 79, no. 5, pp. D301-D318, 2014.
R. Abdollah-Pour, Torres-Verdín, C., Sepehrnoori, K., and Spain, D., “Quantification of the effects of bed lamination and wellbore deviation on the interpretation of formation-tester measurements,” Journal of Petroleum Science and Engineering, vol. 120, no. August, pp. 177-186, 2014.
O. Ijasan, Torres-Verddin, 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,” Petrophysics, vol. 55, no. 5, pp. 374-391, 2014.
Z. Heidari and Torres-Verdín, C., “Inversion-based detection of bed boundaries for petrophysical evaluation with well logs: Applications to carbonate and organic-shale formations,” Interpretation, vol. 2, no. 3, pp. T129-T142, 2014.
O. Ijasan, Torres-Verdín, C., Preeg, W. E., Rasmus, J., and Stockhausen, E., “Field examples of the joint petrophysical inversion of resistivity and nuclear measurements acquired in high-angle and horizontal wells,” Geophysics, vol. 79, no. 3, pp. D145-D159, 2014.
P. Matuszyk and Torres-Verdín, C., “Frequency domain simulation of LWD borehole sonic waveforms,” Geophysics, vol. 79, no. 2, pp. D99-D113, 2014.
T. Torskaya, Shabro, V., and Torres-Verdín, C., “Grain shape effects on permeability, formation factor, and capillary pressure from pore-scale modeling,” Transport in Porous Media, vol. 102, no. 1, pp. 71-90, 2014.
W. F. Woodruff, Revil, A., and Torres-Verdín, C., “Laboratory determination of the complex conductivity tensor of unconventional anisotropic shales,” Geophysics, 2014.
V. Shabro, Kelly, S., Torres-Verdín, C., Sepehrnoori, K., and Revil, A., “Pore-scale modeling of electrical resistivity and permeability in FIB-SEM images of organic mudrock,” Geophysics, 2014.
E. Ortega, Torres-Verdín, C., and Preeg, W. E., “Rapid forward modeling of multi-detector logging-while-drilling Sigma measurements,” Geophysics, 2014.
A. Hadibeik, Proett, M., Silvan, A., Torres-Verdín, C., Angeles, R., and K., S., “Sampling with new focused, oval, and conventional probe-type formation tester in the presence of water- and oil-base mud-filtrate invasion for vertical and high-angle wells,” Journal of Petroleum Science and Engineering, 2014.
C. Xu and Torres-Verdín, C., “Petrophysical rock classification in the Cotton Valley tight-gas sandstone reservoir with a clustering pore-system orthogonality matrix,” Interpretation, vol. 2, pp. T13-T23, 2014.
Ortega, E., Torres-Verdín, C., Preeg, W. E., Miles, J., and, “1D radial inversion of multi-setector logging-while-drilling Sigma measurements,” Geophysics, 2014.
A. Revil, Kessouri, P., Torres-Verdín, C., and, “Electrical conductivity, induced polarization, and permeability of Fontainebleu sandstone,” Geophysics, 2014.

2013

A. Gandhi, Torres-Verdín, C., Voss, B., Gros, S., F.,, and Gabulle, J., “Correction of invasion effects on well logs in Camisea gas reservoirs, Peru, with the construction of static and dynamic multilayer petrophysical models,” AAPG Bulletin, vol. 97, pp. 379-412, 2013.
O. Ijasan, Torres-Verdín, C., and Preeg, W. E., “Fast modeling of borehole neutron porosity measurements with a new spatial transport-diffusion approximation,” Geophysics, vol. 78, pp. D151-D168, 2013.
P. Matuszyk, Pardo, D., and Torres-Verdín, C., “Frequency-domain finite-element simulations of 2D sonic wireline borehole measurements acquired in fractured and thinly bedded formations,” Geophysics, vol. 78, pp. D193-D207, 2013.
Z. Heidari, Torres-Verdín, C., and Preeg, W. E., “Improved estimation of mineral and fluid volumetric concentrations in thinly bedded carbonate formations,” Geophysics, vol. 78, pp. D261-D269, 2013.
D. Pardo, Matuszyk, P., Torres-Verdín, M., A., M., I.,, and Calo, V., “Influence of borehole-eccentred tools on wireline and logging-while-drilling sonic logging measurements,” Geophysical Prospecting, vol. 61, pp. 268-283, 2013.
Z. Heidari and Torres-Verdín, C., “Inversion-based method for estimating total organic carbon and porosity, and for diagnosing mineral constituents from multiple well logs in shale-gas formations,” Interpretation, vol. 1, pp. T113-T123, 2013.
C. Xu and Torres-Verdín, C., “Pore system characterization and petrophysical rock classification using a bimodal Gaussian density function,” Mathematical Geosciences, vol. 45, pp. 753-771, 2013.
D. Pardo and Torres-Verdín, C., “Sensitivity analysis for the appraisal of hydrofractures in horizontal wells with borehole resistivity measurements,” Geophysics, vol. 78, pp. D209-D222, 2013.

M. J. Nam, Pardo, D., and Torres-Verdín, C., “Simulation of borehole-eccentered tri-axial induction measurements using a Fourier hp finite-element method,” Geophysics, vol. 78, pp. D41-D52, 2013.

P. Matuszyk and Torres-Verdín, C., “Back-propagating modes in elastic logging-while-drilling collars and their effect on PML stability,” Computers and Mathematics with Applications, vol. 66, pp. 2335-2343, 2013.

A. Revil, Woodruff, W. F., Torres-Verdín, C., and Prasad, M., “Complex conductivity tensor of anisotropic hydrocarbon-bearing shales and mudrocks,” Geophysics, vol. 78, pp. D403-D418, 2013.

C. Xu and Torres-Verdín, C., “Interpretation of hydraulic rock types with resistivity logs in Tertiary deepwater turbidite reservoirs,” Pore-scale modeling verified with field observations in the Gulf of Mexico, USA: Interpretation, vol. 1, pp. T177–T185, 2013.

O. Ijasan, Torres-Verdín, C., and Preeg, W. E., “Interpretation of porosity and fluid constituents from well logs using an interactive neutron-density matrix scale,” Interpretation, vol. 1, pp. T143-T155, 2013.
O. Ijasan, Torres-Verdín, C., and Preeg, W. E., “Inversion-based petrophysical interpretation of logging-while-rilling nuclear and resistivity measurements,” Geophysics, vol. 78, pp. D473-D489, 2013.
C. Xu and Torres-Verdín, C., “Quantifying fluid distribution and phase connectivity with a simple 3D cubic pore network model constrained by NMR and MICP data,” Computers and Geosciences, vol. 61, pp. 94-103, 2013.

2012

V. Shabro, Torres-Verdín, C., Javadpour, F., and Sepehrnoori, K., “Finite-difference approximation for fluid-flow simulation and calculation of permeability in porous media,” Transport in Porous Media, vol. 94, pp. 775-793, 2012.
Z. Heidari, Torres-Verdín, C., and Preeg, W. E., “Improved estimation of fluid and mineral volumetric concentrations from well logs in thinly bedded and invaded formations,” Geophysics, vol. 77, pp. WA79-WA98, 2012.
A. Mendoza, Ijasan, O., Torres-Verdín, C., Preeg, B., Rasmus, J., Radtke, R. J., and Stockhausen, E., “Inversion-based method for interpretation of logging-while-drilling density measurements acquired in high-angle and horizontal wells,” Geophysics, vol. 77, pp. D113-D127, 2012.
P. Matuszyk, Demkowicz, L., and Torres-Verdín, C., “Solution of coupled acoustic-elastic wave propagation problems with anelastic attenuation using automatic hp-adaptivity,” Computer Methods in Applied Mechanics and Engineering (CMAME), vol. 200, pp. 299-313, 2012.
Z. Heidari and Torres-Verdín, C., “Estimation of dynamic petrophysical properties of water-bearing sands invaded with oil-base mud from the interpretation of multiple borehole geophysical measurements,” Geophysics, vol. 77, pp. D209-D227, 2012.

2011

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,” Petrophysics, vol. 52, pp. 14-31, 2011.
F. O. Alpak, Habashy, T. M., Abubakar, A., Torres-Verdín, C., and Sepehrnoori, K., “A multiplicative regularized Gauss-Newton algorithm and its application to the joint inversion of induction logging and near-borehole pressure measurements,” Progress in Electromagnetics Research B, vol. 29, pp. 105–138, 2011.
D. Pardo, Nam, M. J., Torres-Verdín, C., Hoversten, M., and Garay, I., “Simulation of marine controlled source electromagnetic measurements using a parallel Fourier hp-finite element method,” Computational Geosciences, vol. 15, pp. 53-67, 2011.
Z. Heidari, Torres-Verdín, C., Mendoza, A., and Wang, G. L., “Assessment of residual hydrocarbon saturation with the combined quantitative interpretation of resistivity and nuclear logs,” Petrophysics, vol. 52, pp. 217-237, 2011.
J. M. Salazar, Torres-Verdín, C., and G. L. Wang, “Effects of surfactant-emulsified oil-based mud on borehole resistivity measurements,” SPE Journal, vol. 16, pp. 608-624, 2011.
J. Mimoun, Torres-Verdín, C., and Preeg, W. E., “Quantitative interpretation of pulsed neutron capture logs, Part II: inversion of measurements in thinly-bedded formations,” Geophysics, vol. 76, pp. E95-E103, 2011.
J. Mimoun, Torres-Verdín, C., and Preeg, W. E., “Quantitative interpretation of pulsed neutron capture logs, Part I: fast numerical simulation,” Geophysics, vol. 76, pp. E81-E93, 2011.
R. Mallan, Torres-Verdín, C., and Ma, J., “Simulation of borehole sonic measurements in dipping, anisotropic, and invaded formations,” Geophysics, vol. 76, pp. E127-E139, 2011.
D. Pardo, Matuszyk, P., Muga, I., Torres-Verdín, C., Mora, A., and Calo, V. M., “Simulation of wireline sonic logging measurements acquired with Borehole-Eccentered tools using a high-order adaptive finite-element method,” Journal of Computational Physics, vol. 230, pp. 6320-6333, 2011.

2010

M. J. Nam, Pardo, D., Torres-Verdín, C., Hwang, S., Park, K. G., and Lee, C., “Simulation of eccentricity effects on short- and long-normal logging measurements using a Fourier- h- finite-element method,” Exploration Geophysics, vol. 41, pp. 1-9, 2010.
M. J. Nam, Pardo, D., and Torres-Verdín, C., “Assessment of Delaware and Groningen effects on dual-laterolog measurements with a self-adaptive hp finite-element method,” Geophysics, vol. 75, pp. F143-F149, 2010.
F. O. Alpak and Torres-Verdín, C., “Data-adaptive resolution method for the parametric three-dimensional inversion of triaxial borehole electromagnetic measurements,” Progress in Electromagnetics Research B, vol. 25, pp. 93-111, 2010.
R. Angeles, Hadibeik, A., Torres-Verdín, C., and Sepehrnoori, K., “Estimation of capillary pressure and relative permeability from formation-tester measurements using Design of Experiment and Data-Weighing Inversion: Synthetic and Field Examples,” Journal of Petroleum Science and Engineering, vol. 75, pp. 19-32, 2010.
J. Sanchez-Ramirez, Torres-Verdín, C., Wolf, D., Wang, G. L., Mendoza, A., Liu, 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,” Petrophysics, vol. 51, pp. 247-263, 2010.
M. Malik, Dindoruk, B., Elshahawi, H., and Torres-Verdín, C., “Numerical investigation of oil-base mud contamination in condensates: from cleanup to sample quality,” Journal of Natural Gas and Engineering, vol. 2, pp. 69-78, 2010.
M. J. Nam, Pardo, D., and Torres-Verdín, C., “Simulation of triaxial induction measurements in dipping, invaded, and anisotropic formations using a Fourier series expansion in a nonorthogonal system of coordinates and a self-adaptive hp finite-element method,” Geophysics, vol. 75, pp. F83-F95, 2010.
A. Moinfar, Mallan, R. K., Torres-Verdín, C., and Angeles, R., “Time-lapse variations of multi-component electrical resistivity measurements acquired in high-angle wells,” Petrophysics, vol. 51, pp. 408-427, 2010.
G. Merletti and Torres-Verdín, C., “Detection and spatial delineation of thin-sand sedimentary sequences with joint stochastic inversion of well logs and 3D prestack seismic amplitude data,” SPE Reservoir Evaluation and Engineering, vol. 13, pp. 246-264, 2010.
A. Mendoza, Torres-Verdín, C., and Preeg, W. E., “Linear iterative refinement method for the rapid simulation of borehole nuclear measurements, Part I: Vertical wells,” Geophysics, vol. 75, pp. E9-E29, 2010.
A. Mendoza, Torres-Verdín, C., and Preeg, W. E., “Linear iterative refinement method for the rapid simulation of borehole nuclear measurements, Part II: high-angle and horizontal wells,” Geophysics, vol. 75, pp. E79-E90, 2010.
M. Paszynski, Pardo, D., Torres-Verdín, C., Demkowicz, L., and Calo, V., “A parallel direct solver for the self-adaptive hp finite element method,” Journal of Parallel and Distributed Computing, vol. 70, pp. 270-281, 2010.

2009

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,” SPE Journal, vol. 14, pp. 164-181, 2009.
G. L. Wang, Torres-Verdín, C., Salazar, J. M., and Voss, B., “Fast 2D inversion of large borehole EM induction data sets with an efficient Fréchet-derivative approximation,” Geophysics, vol. 74, pp. E75-E91, 2009.
E. Uzoh, Mendoza, A., Torres-Verdín, C., Preeg, W. E., Stockhausen, E., and Rasmus, J. C., “Influence of relative dip angle and bed-thickness effects on LWD density images acquired in high-angle and horizontal wells,” Petrophysics, vol. 50, pp. 269-293, 2009.
C. Michler, Demkowicz, L., and Torres-Verdín, C., “Numerical simulation of borehole acoustic logging in the frequency and time domains with hp-adaptive finite elements,” Computer Methods in Applied Mechanics and Engineering (CMAME), vol. 198, pp. 1821-1838, 2009.
R. Angeles, Torres-Verdín, C., Sepehrnoori, K., and Malik, M., “Prediction of formation-tester fluid-sample quality in highly-deviated wells,” Petrophysics, vol. 50, pp. 32-48, 2009.
J. M. Salazar and Torres-Verdín, C., “Quantitative comparison of processes of oil- and water-base mud-filtrate invasion and corresponding effects on borehole resistivity measurements,” Geophysics, vol. 74, pp. E57-E73, 2009.
M. J. Nam, Pardo, D., and Torres-Verdín, C., “Simulation of DC dual-laterolog measurements in complex formations: A Fourier-series approach with nonorthogonal coordinates and self-adaptive finite elements,” Geophysics, vol. 74, pp. E31-E43, 2009.
W. Yang, Torres-Verdín, C., Hou, J., and Zhang, Z., “1D subsurface EM fields excited by energized steel casing,” Geophysics, vol. 74, pp. E159-E180, 2009.
G. Jin, Torres-Verdín, C., and Toumelin, E., “Comparison of NMR simulations of porous media derived from analytical and voxelized representations,” Journal of Magnetic Resonance, vol. 200, pp. 313-320, 2009.
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,” Petrophysics, vol. 5, pp. 376-395, 2009.
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,” SPE Reservoir Evaluation and Engineering, vol. 12, no. 6, pp. 898-911, 2009.
G. L. Wang, Torres-Verdín, C., and Gianzero, S., “Fast simulation of triaxial borehole induction measurements acquired in axially symmetrical and transversely isotropic media,” Geophysics, vol. 74, pp. E233-E249, 2009.
V. Shabro, Javadpour, F., and Torres-Verdín, C., “A generalized finite-difference diffusive-advective (FDDA) model for gas flow in micro- and nano-porous media: World Journal of Engineering,” World Journal of Engineering, vol. 6, pp. 7-15, 2009.

2008

D. Pardo, Paszynski, M., Torres-Verdín, C., and L., D., “Simulation of 3D DC borehole resistivity measurements with a goal-oriented hp finite-element method Part I: Laterolog and LWD,” Journal of the Serbian Society of Computational Mechanics, vol. 1, pp. 62-63, 2008.
M. Gambús-Ordaz and Torres-Verdín, C., “Assessing the value of 3D post-stack seismic amplitude data in forecasting fluid production from a Gulf-of-Mexico reservoir,” Journal of Petroleum Science and Engineering, vol. 62, pp. 1-15, 2008.
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,” Geophysics, vol. 73, pp. E107-E114, 2008.
M. Malik, Salazar, J. M., Torres-Verdín, C., Wang, G. L., Lee, H. J., and Sepehrnoori, K., “Effects of petrophysical properties on array-induction measurements acquired in the presence of oil-base mud-filtrate invasion,” Petrophysics, vol. 49, pp. 74-92, 2008.
D. Pardo, Calo, V. M., Torres-Verdín, C., Nam, M. J., and Paszynski, M., “Fourier series expansion in a non-orthogonal system of coordinates for the simulation of 3D DC Borehole Resistivity Measurements,” Computer Methods in Applied Mechanics and Engineering (CMAME), vol. 197, no. 21-24, pp. 1906-1925, 2008.
D. Pardo, Calo, V. M., Torres-Verdín, C., Nam, M. J., and Paszynski, M., “Fourier series expansion in a non-orthogonal system of coordinates for the simulation of 3D alternating current resistivity measurements,” Computer Methods in Applied Mechanics and Engineering (CMAME), vol. 197, no. 45-48, pp. 3836-3849, 2008.
E. Toumelin, Torres-Verdín, C., and Bona, N., “Improving the petrophysical interpretation of saturated rocks with wide-band electromagnetic measurements,” SPE Journal, vol. 13, pp. 205-215, 2008.
E. Toumelin and Torres-Verdín, C., “Object-oriented approach for the pore-scale simulation of DC electrical conductivity of two-phase saturated porous media,” Geophysics, vol. 73, pp. E67-E79, 2008.
D. Pardo, Nam, M. J., Torres-Verdín, C., and Paszynski, M., “A parallel, Fourier finite-element formulation with an iterative solver for the simulation of 3D LWD measurements acquired in deviated wells,” Progress in Electromagnetic Research Symposium (PIERS) Online, vol. 5, pp. 551-555, 2008.
D. Pardo, L., D., Torres-Verdín, C., and Michler, C., “PML enhanced with a self-adaptive goal-Oriented hp finite-element method: simulation of through-casing borehole resistivity measurements,” SIAM Journal on Scientific Computing, Special Issue on Computational Science and Engineering, vol. 30, pp. 2948-2964, 2008.
D. Pardo, Torres-Verdín, C., and Paszynski, M., “Simulation of 3D DC borehole resistivity measurements with a goal-oriented hp finite-element method Part II: Through casing resistivity instruments,” Computational Geosciences, vol. 12, pp. 83-89, 2008.
F. O. Alpak, Torres-Verdín, C., and Habashy, T. M., “Estimation of in-situ petrophysical properties from wireline formation tester and induction logging measurements: A joint inversion approach,” Journal of Petroleum Science and Engineering, vol. 63, pp. 1-17, 2008.
A. Johns, Lake, L. W., Torres-Verdín, C., and Srinivasan, S., “Seismic facies identification and classification using simple statistics,” SPE Reservoir Evaluation and Engineering, vol. 11, pp. 984-990, 2008.
D. Pardo, Torres-Verdín, C., and Zhang, Z., “Sensitivity study of borehole-to-surface and crosswell electromagnetic measurements acquired with energized steel casing to water displacement in hydrocarbon-bearing layers,” Geophysics, vol. 73, pp. F261-F268, 2008.

2007

M. Malik, Torres-Verdín, C., and Sepehrnoori, K., “Axially-symmetric compositional simulation of formation tester measurements,” Journal of Petroleum Science and Engineering, vol. 59, pp. 333-349, 2007.
M. Malik, Torres-Verdín, C., Sepehrnoori, K., Dindoruk, B., Elshahawi, H., and Hashem, M., “History matching and sensitivity analysis of probe-type formation-tester measurements acquired in the presence of oil-base mud-filtrate invasion,” Petrophysics, vol. 48, pp. 454-472, 2007.
A. Contreras, Torres-Verdín, C., and Fasnacht, T., “Sensitivity analysis of data-related factors controlling AVA simultaneous inversion of partially stacked seismic amplitude data: Application to deepwater hydrocarbon reservoirs in the central Gulf of Mexico,” Geophysics, vol. 72, pp. C19-C29, 2007.
E. Toumelin and Torres-Verdín, C., “2D pore-scale simulation of wide-band dielectric dispersion of saturated rocks,” Geophysics, vol. 72, pp. F97-F110, 2007.
R. K. Mallan and Torres-Verdín, C., “Effects of petrophysical, environmental, and geometrical parameters on multi-component induction measurements acquired in high-angle wells,” Petrophysics, vol. 48, pp. 271-288, 2007.
R. Angeles, Torres-Verdín, C., Lee, H. J., Alpak, F. O., and Sheng, J., “Estimation of permeability and permeability anisotropy from straddle-packer formation-tester measurements based on the physics of two-phase immiscible flow and invasion,” SPE Journal, vol. 12, no. 3, pp. 339-354, 2007.
D. Pardo, Torres-Verdín, C., and L., D., “Feasibility study for 2D frequency-dependent electromagnetic sensing through casing,” Geophysics, vol. 72, pp. F111-F118, 2007.
A. 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,” Petrophysics, vol. 48, pp. 28-44, 2007.
G. Jin, Torres-Verdín, C., Devarayan, S., Toumelin, E., and Thomas, E. C., “Pore-scale analysis of the Waxman-Smits shaly-sand conductivity model,” Petrophysics, vol. 48, pp. 104-120, 2007.
E. Toumelin, Torres-Verdín, C., Sun, B,, and Dunn, K. – J., “A random-walk technique for simulating NMR measurements and 2D NMR maps of porous media with relaxing and permeable boundaries,” Journal of Magnetic Resonance, vol. 188, pp. 83-96, 2007.
D. Pardo, L., D., Torres-Verdín, C., and Paszynski, M., “A self-adaptive goal-oriented hp finite element method with electromagnetic applications Part II, Electrodynamics,” Computer Methods in Applied Mechanics and Engineering (CMAME), vol. 196, pp. 3585-3597, 2007.
R. Angeles, Torres-Verdín, C., Yuan, C., and Lee, H. J., “Spatial sensitivity functions of two-phase formation-tester measurements acquired in vertical wells,” Petrophysics, vol. 48, pp. 362-379, 2007.
D. Pardo, García-Castillo, L. E., F., D. L., and Torres-Verdín, C., “A two-dimensional self-adaptive hp finite-element method for the characterization of waveguide discontinuities, Part II – goal-oriented hp-adaptivity,” Computer Methods in Applied Mechanics and Engineering (CMAME), vol. 49-52, pp. 4811-4822, 2007.

2006

C. Torres-Verdin, Grijalba-Cuenca, A., and Debeye, H. W. L., “A comparison between geostatistical inversion and conventional geostatistical-simulation practices for reservoir delineation,” in Stochastic Modeling and Geostatistics: Principles, Methods, and Case Studies, vol. II, pp. 187-205, 2006
.
O. J. Varela, Torres-Verdín, C., and Sen, M. K., “Enforcing smoothness and assessing uncertainty in nonlinear one-dimensional pre-stack seismic inversion,” Geophysical Prospecting, vol. 54, 2006.
A. Contreras, Torres-Verdín, C., Kvien, K., Chesters, W., and Fasnacht, T., “Extrapolation of flow units away from wells with 3D pre-stack seismic amplitude data: field example,” Petrophysics, vol. 47, pp. 223-238, 2006.
D. Pardo, L., D., Torres-Verdín, C., and Tabarovsky, L., “A goal-oriented hp-adaptive finite element method with electromagnetic application, Part I: electrostatics,” International Journal for Numerical Methods in Engineering, vol. 65, pp. 1269-1309, 2006.
G. Gao and Torres-Verdín, C., “A high-order generalized extended Born approximation for electromagnetic scattering,” IEEE Transactions on Antennas and Propagation, vol. 54, 2006.
D. Pardo, Torres-Verdín, C., and L., D., “Simulation of multifrequency borehole resistivity measurements through metal casing using a goal-oriented hp finite-element method,” IEEE Transactions on Geoscience and Remote Sensing, vol. 44, pp. 2125-2134, 2006.
O. J. Varela, Torres-Verdín, C., Sen, M. K., and Roy, I. G., “Using time-lapse 3D seismic data to detect dynamic reservoir behavior due to water-oil displacement: a numerical study based on one-dimensional prestack inversion,” Journal of Geophysics and Engineering, vol. 3, pp. 177-193, 2006.
O. J. Varela, Torres-Verdín, C., and Lake, L., “On the value of 3D seismic amplitude data to reduce uncertainty in the forecast of reservoir production,” Journal of Petroleum Science and Engineering, vol. 50, pp. 269-284, 2006.
S. Chi, Torres-Verdín, C., Wu, J., and Alpak, F. O., “Assessment of mud-filtrate invasion effects on borehole acoustic logs and radial profiling of formation elastic properties,” SPE Reservoir Evaluation and Engineering, vol. 9, pp. 553-564, 2006.
A. Contreras, Torres-Verdín, C., and Fasnacht, T., “AVA simultaneous inversion of partially stacked seismic amplitude data for the spatial delineation of lithology and fluids units of deepwater hydrocarbon reservoirs in the central Gulf of Mexico,” Geophysics, vol. 71, pp. E41–E48, 2006.
G. Gao and Torres-Verdín, C., “Efficient numerical simulation of axisymmetric electromagnetic induction measurements using a high-order generalized extended Born approximation,” IEEE Transactions on Geoscience and Remote Sensing, vol. 44, pp. 2445-2453, 2006.
J. M. Salazar, Torres-Verdín, C., Alpak, F. O., Habashy, T. M., and Klein, J. D., “Estimation of permeability from borehole array induction measurements: application to the petrophysical appraisal of tight-gas sands,” Petrophysics, vol. 47, pp. 527-544, 2006.
J. Hou, Mallan, R. K., and Torres-Verdín, C., “Finite-difference simulation of borehole EM measurements in 3D anisotropic media using coupled scalar-vector potentials,” Geophysics, vol. 71, pp. G225-G233, 2006.
E. Toumelin, Torres-Verdín, C., Sun, B., and Dunn, K. – J., “Limits of 2D NMR interpretation techniques to quantify pore size, wettability, and fluid type: a numerical sensitivity study,” SPE Journal, vol. 11, pp. 354-363, 2006.
F. O. Alpak, Torres-Verdín, C., and Habashy, T. M., “Petrophysical inversion of borehole array-induction logs: Part I ─ Numerical examples: Geophysics,” 2006, vol. 71, pp. F101-F119, 2006.
C. Torres-Verdín, Alpak, F. O., and Habashy, T. M., “Petrophysical inversion of borehole array-induction logs: Part II ─ Field data examples,” Geophysics, vol. 71, pp. G261-G268, 2006.
D. Pardo, L., D., Torres-Verdín, C., and Paszynski, M., “Two-dimensional high-accuracy simulation of logging-while-drilling (LWD) measurements using a self-adaptive goal-oriented hp finite element method,” SIAM Journal on Applied Mathematics, vol. 66, pp. 2085-2106, 2006.

2005

G. Gao, Torres-Verdín, C., and Habashy, T. M., “Analytical techniques to evaluate the integrals of 3D and 2D spatial dyadic Green’s functions,” Progress in Electromagnetics Research (PIER), vol. 52, pp. 47-80, 2005.
J. Wu, Torres-Verdín, C., Sepehrnoori, K., and Proett, M., “The influence of water-base mud properties and petrophysical parameters on mudcake growth, filtrate invasion, and formation pressure,” Petrophysics, vol. 46, pp. 14-32, 2005.
J. M. Salazar, Torres-Verdín, C., and Sigal, R., “Assessment of permeability from well logs based on core calibration and simulation of mud-filtrate invasion,” Petrophysics, vol. 46, pp. 434-451, 2005.
I. G. Roy, Sen, M. K., and Torres-Verdín, C., “Full waveform seismic inversion using a distributed system of computers: Concurrency and Computation,” Practice and Experience, vol. 17, pp. 1365-1385, 2005.
T. Kurc, Catalyurek, U., Zhang, X., Saltz, J., Martino, R., Wheeler, M., Peszynska, M., Sussman, A., Hansen, C. M., Sen, M., Seifoullaev, R., Stoffa, P., Torres-Verdín, C., and Parashar, M., “A simulation and data analysis system for large-scale, data-driven oil reservoir simulation studies: Concurrency and Computation,” Practice and Experience, vol. 17, pp. 1441-1467, 2005.

2004

C. Torres-Verdín, Habashy, T. M., and Alpak, O. F., “Joint inversion of pressure and DC resistivity measurements acquired with in-situ permanent sensors: a numerical study,” Geophysics, vol. 69, no. 5, pp. 1173-1191, 2004.
B. K. George, Torres-Verdín, C., Delshad, M., Sigal, R., Zouioueche, F., and Anderson, B., “Assessment of in-situ hydrocarbon saturation in the presence of deep invasion and highly saline connate water,” Petrophysics, vol. 45, pp. 141-156, 2004.
O. F. Alpak, Torres-Verdín, C., and Sepehrnoori, K., “Estimation of axisymmetric spatial distributions of permeability and porosity from pressure-transient data acquired with in situ permanent sensors,” Journal of Petroleum Science and Engineering, vol. 44, pp. 3-4, 2004.
G. Gao, Torres-Verdín, C., and Fang, S., “Fast 3D modeling of borehole induction data in dipping and anisotropic formations using a novel approximation technique,” Petrophysics, vol. 45, 2004.
O. F. Alpak, Torres-Verdín, C., and Habashy, T. M., “Joint inversion of pressure and DC resistivity measurements acquired with in-situ permanent sensors: a numerical study,” Geophysics, vol. 69, pp. 1173-1191, 2004.
O. F. Alpak, Habashy, T. M., Torres-Verdín, C., and Dussan, E. V., “Joint inversion of pressure and time-lapse electromagnetic logging measurements,” Petrophysics, vol. 45, pp. 251-267, 2004.
J. Wu, Torres-Verdín, C., Sepehrnoori, K., and Delshad, M., “Numerical simulation of mud-filtrate invasion in deviated wells,” SPE Reservoir Evaluation and Engineering, vol. 7, pp. 143-154, 2004.
I. G. Roy, Sen, M. K., Torres-Verdín, C., and Varela, O. J., “Pre-stack inversion of a Gulf-of-Thailand ocean-bottom cable (OBC) data set,” Geophysics, vol. 69, pp. 1470-1477, 2004.

2003

O. F. Alpak, Torres-Verdín, C., Sepehrnoori, K., and Fang, S., “An extended Krylov subspace method to simulate single-phase pressure behavior of axisymmetric and anisotropic porous media,” Journal of Petroleum Science and Engineering, vol. 40, pp. 3-4, 2003.
E. Toumelin, Torres-Verdín, C., and Chen, S., “Modeling of multiple echo-times NMR measurements for complex pore geometries and multiphase saturations,” SPE Reservoir Evaluation and Engineering, vol. 6, pp. 234-243, 2003.
O. F. Alpak, Dussan, E. V., Habashy, T. M., and Torres-Verdín, C., “Numerical simulation of mud filtrate invasion in horizontal wells and sensitivity analysis of array induction tools:,” Petrophysics, vol. 44, pp. 396-411, 2003.
E. Toumelin, Torres-Verdín, C., Chen, S., and Fischer, M., “Reconciling NMR measurements and numerical simulations: assessment of temperature and diffusive coupling effects on two-phase carbonate samples,” Petrophysics, vol. 44, pp. 91-107, 2003.
C. Torres-Verdín, Chunduru, R. K., and Mezzatesta, A. G., “Integrated interpretation of wireline and 3D seismic data to delineate thin oil-producing sands in San Jorge Basin, Argentina,” SPE Reservoir Evaluation and Engineering, vol. 6, pp. 369-375, 2003.

2001

C. Torres-Verdín and Habashy, T. M., “Rapid numerical simulation of axisymmetric single-well induction data using the extended Born approximation,” Radio Science, vol. 35, pp. 1287-1306, 2001.

2000

A. Malinverno and Torres-Verdín, C., “Bayesian inversion of DC electrical measurements applied to reservoir monitoring: Inverse Problems,” Special Section on Electromagnetic Imaging and Inversion of the Earth’s Subsurface, vol. 16, pp. 1343-1356, 2000.
C. Torres-Verdín, Druskin, V., Fang, S., Knizhnerman, L., and Malinverno, A., “A dual-grid nonlinear inversion technique with applications to the interpretation of DC resistivity data: Geophysics,” v. 65, no. 6, vol. 65, pp. 1733-1745, 2000.

1999

M. Wilt, Spies, B., Alumbaugh, D., and Torres-Verdin, C., “Measurement of surface and borehole electromagnetic fields in 2-D and 3-D geology,” in Three Dimensional Electromagnetics, 1999.

1996

H. F. Morrison, Hoversten, G. M., Shoham, Y., and Torres-Verdín, C., “Electromagnetic mapping of electrical conductivity beneath the Columbia Basalts,” Geophysical Prospecting, vol. 44, pp. 963–986, 1996.
F. J. Kuchuk, Habashy, T. M., and Torres-Verdín, C., “A nonlinear approximation for the pressure behavior of heterogeneous reservoirs,” SPE Journal, vol. 1, pp. 229-241, 1996.

1995

A. de Hoop, Oristaglio, M., Habashy, T. M., and Torres-Verdín, C., “Asymptotic ray theory for transient diffusive electromagnetic fields,” Radio Science, vol. 31, pp. 41-49, 1995.
M. Wilt, Lee, K. H., Morrison, H. F., Becker, A., Torres-Verdín, C., Alumbaugh, D., and Tseng, H., “Crosshole electromagnetic tomography: A new technology for oil field characterization,” The Leading Edge, vol. March-April, pp. 173-177, 1995.
Torres-Verdín, C. and Habashy, T. M., “A two-step linear inversion of two-dimensional conductivity,” IEEE Transactions on Antennas and Propagation, vol. 43, pp. 405–415, 1995.

1994

C. Torres-Verdín and Habashy, T. M., “Rapid 2.5-dimensional forward modeling and inversion via a new nonlinear scattering approximation,” Radio Science (Special Issue on Fast Forward and Inverse Scattering Methods), vol. 29, pp. 1051–1079, 1994.

1992

C. Torres-Verdín and Bostick Jr, F. X., “Implications of the Born approximation for the magnetotelluric problem in three-dimensional environment,” Geophysics, vol. 57, pp. 587–602, 1992.
C. Torres-Verdín and Bostick Jr, F. X., “Principles of spatial surface electric field filtering in magnetotellurics: Electromagnetic Array Profiling (EMAP),” Geophysics, vol. 57, pp. 603–622, 1992.

1988

S. Park, K.,, and Torres-Verdín, C., “A systematic approach to the interpretation of magnetotelluric data in volcanic environments with applications to the quest of magma in Long Valley, California,” Journal of Geophysical Research, vol. 93, pp. 13265–13283, 1988.
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