Inversion-based petrophysical interpretation of logging-while-drilling nuclear and resistivity measurements O Ijasan, C Torres-Verdín, WE Preeg Geophysics 78 (6), D473-D489, 2013 | 58 | 2013 |
Fast modeling of borehole neutron porosity measurements with a new spatial transport-diffusion approximation O Ijasan, C Torres-Verdín, WE Preeg Geophysics 78 (3), D151-D168, 2013 | 23 | 2013 |
Interpretation of porosity and fluid constituents from well logs using an interactive neutron-density matrix scale O Ijasan, C Torres-Verdín, WE Preeg Interpretation 1 (2), T143-T155, 2013 | 17 | 2013 |
Inversion-based method for interpretation of logging-while-drilling density measurements acquired in high-angle and horizontal wells A Mendoza, O Ijasan, C Torres-Verdín, WE Preeg, J Rasmus, RJ Radtke, ... Geophysics 77 (4), D113-D127, 2012 | 15 | 2012 |
Rapid modeling of LWD nuclear measurements acquired in high-angle and horizontal wells for improved petrophysical and geometrical interpretation O Ijasan | 15 | 2010 |
Estimation of porosity and fluid constituents from neutron and density logs using an interactive matrix scale O Ijasan, C Torres-Verdín, WE Preeg SPWLA Annual Logging Symposium, SPWLA-2013-T, 2013 | 11 | 2013 |
Rapid modeling of LWD nuclear measurements acquired in high-angle and horizontal wells for improved petrophysical and geometrical interpretation O Ijasan, C Torres-Verdín, W Preeg, A Mendoza SPWLA 52nd Annual Logging Symposium, 2011 | 11 | 2011 |
Method of determining unconventional reservoir saturation with NMR logging SJ Ye, A Scribner, D McLendon, O Ijasan, S Chen, W Shao, R Balliet SPE Annual Technical Conference and Exhibition?, D021S032R002, 2019 | 10 | 2019 |
Field examples of the joint petrophysical inversion of resistivity and nuclear measurements acquired in high-angle and horizontal wells O Ijasan, C Torres-Verdín, WE Preeg, J Rasmus, E Stockhausen Geophysics 79 (3), D145-D159, 2014 | 9 | 2014 |
Rapid, interactive assessment of petrophysical and geometrical effects on density and neutron logs acquired in vertical and deviated wells Z Heidari, C Torres-Verdín, A Mendoza, O Ijasan, B Voss, B Preeg SPE Annual Technical Conference and Exhibition?, SPE-124879-MS, 2009 | 9 | 2009 |
Fast-forward modeling of azimuthal logging-while-drilling neutron porosity measurements in the presence of borehole and environmental effects O Ijasan, CR Case, JM Chiaramonte, DV Ellis, BA Roscoe SPWLA 54th Annual Logging Symposium, 2013 | 7 | 2013 |
Inversion-based interpretation of logging-while-drilling resistivity and nuclear measurements: field examples of application in high-angle and horizontal wells O Ijasan, C Torres-Verdin, WE Preeg, J Rasmus, EJ Stockhausen Petrophysics 55 (05), 374-391, 2014 | 6 | 2014 |
Inversion-based interpretation of LWD resistivity and nuclear measurements: field examples of application in high-angle and horizontal wells O Ijasan, C Torres-Verdín, WE Preeg, J Rasmus, EJ Stockhausen SPWLA Annual Logging Symposium, SPWLA-2014-FF, 2014 | 6 | 2014 |
NMR T1-T2 Logging in Unconventional Reservoirs: Pore-Size Distribution, Permeability, and Reservoir Quality O Ijasan, J Macquaker, M Luycx, S Alzobaidi, E Oyewole, M Rudnicki Petrophysics 63 (03), 352-367, 2022 | 5 | 2022 |
Estimating Characteristic Relaxation Properties from NMR T1-T2 Measurements in Unconventional Reservoirs O Ijasan, D McLendon SPE/AAPG/SEG Unconventional Resources Technology Conference, D033S082R015, 2020 | 4 | 2020 |
Poroelastic prediction of matrix compressibility and pressure dependent permeability: Impact on simulated recovery factors in Permian Basin resource rocks, USA B Crawford, M Cronin, O Ijasan, M Luycx, D McLendon, S Chhatre SPE/AAPG/SEG Unconventional Resources Technology Conference, D031S060R003, 2023 | 3 | 2023 |
Core-calibrated multi-mineral interpretation in reservoirs with complex mineralogy M Luycx, B Wheelock, H Kadir, EO Oyewole, O Ijasan, D McLendon Unconventional Resources Technology Conference, 20–22 June 2022, 2431-2445, 2022 | 3 | 2022 |
Fast modeling of borehole neutron measurements with a new transport-diffusion approximation O Ijasan, C Torres-Verdín, W Preeg SEG International Exposition and Annual Meeting, SEG-2012-0832, 2012 | 3 | 2012 |
Surface relaxivities and bulk relaxation times from nuclear magnetic resonance - logging in unconventional reservoirs O Ijasan Geophysics 87 (5), D147-D159, 2022 | 2 | 2022 |
Is Porosity Anisotropy Real and Will it Affect My Petrophysical Evaluations? J Rasmus, O Ijasan, C Morriss, R Griffiths, D Ellis, JM Chiaramonte, ... SPWLA Annual Logging Symposium, SPWLA-2013-K, 2013 | 1 | 2013 |