Academic Appointments


Administrative Appointments


  • Assistant Professor of Petroleum Engineering, Stanford University (1996 - 2003)
  • Chair, Energy Resources Engineering (2012 - Present)
  • Associate Professor of Petroleum Engineering, Stanford University (2003 - 2006)
  • Associate Professor of Energy Resources Engineering, Stanford University (2006 - 2010)
  • Professor of Energy Resources Engineering, Stanford University (2010 - Present)

Honors & Awards


  • Jenkins Shackelford Scholar, Western Washington University (1984-1988)
  • Tau Beta Pi, Univ. of Washington (1988)
  • School of Earth Sciences Award for Excellence in Teaching, Stanford University (1997-1998)
  • Senior Scientist Fellowship, Summer, ENSAM - University of Bordeaux, France (2000)
  • Outstanding Technical Editor, SPE Editorial Review Committee, Society of Petroleum Engineers (2001-2002)
  • Outstanding Technical Editor, SPE Editorial Review Committee, Society of Petroleum Engineers (2004)
  • SPE Western North America Region Technical Achievement Award, Society of Petroleum Engineers (2005)
  • SPE Distinguished Achievement Award for Petroleum Engineering Faculty, Stanford University (2006)
  • Outstanding Review Chair, SPE Editorial Review Committee, Stanford University (2007)
  • Distinguished Lecturer. Carbon Sequestration, Global Climate and Energy Project, Stanford University (2008)

Boards, Advisory Committees, Professional Organizations


  • Breadth Governance Board, Ways of Thinking and Doing, Stanford University (2012 - 2014)
  • Chairman of Energy Resources Engineering, Stanford University (2012 - Present)
  • Codirector of SCCS, Stanford Center for Carbon Storage Affiliates, Stanford University (2011 - Present)
  • Chair, Faculty Search Committee Energy Resources Engineering, Stanford University (2011 - 2011)
  • Invited Speaker, China University of Petroleum, Beijing China (2011 - 2011)
  • Technical Program Committee, SPE Western Regional Meeting, Society of Petroleum Engineers (2011 - 2011)
  • Cochair of Steering Committee, SPE Forum, Digital Rocks: Realizing Step Change in the Value of Laboratory Data (2010 - 2011)
  • Invited Speaker: Department of Chemical Engineering, University of California at Santa Barbara, et al. (2010 - 2010)
  • Technical Program Committee, SPE Western Regional Meeting, Society of Petroleum Engineers (2010 - 2010)
  • Invited Speaker, Department of Petroleum and Geosystems Engineering, University of Texas and Chemical Engineering and Materials Science, University of Southern California (2009 - 2009)
  • Executive Editor, SPE Journal, Society of Petroleum Engineers (2009 - 2012)
  • Associate Chairman, Energy Resources Engineering, Stanford University (2008 - 2011)
  • Chair, Faculty Search Committee, Energy Resources Engineering, Stanford University (2008 - 2008)
  • Marshall, 117th Commencement June 15, Stanford University (2008 - 2008)
  • Technical Program Committee, SPE Western Regional Meeting, Society of Petroleum Engineers (2008 - 2009)
  • Organizing Committee, SPE Forum, Maximizing Oil Recovery in the 21st Century, Colorado Springs, CO., Society of Petroleum Engineers (2008 - 2009)
  • Society of Petroleum Engineers, Books Development Committee, Society of Petroleum Engineers (2008 - 2009)
  • Technical Program Committee, SPE Western Regional Meeting, Society of Petroleum Engineers (2007 - 2008)
  • Member, Faculty Search Committee, Energy Resources Engineering, Stanford University (2007 - 2007)
  • SPE Publications Coordinating Committee, Society of Petroleum Engineers (2007 - 2008)
  • Steering Committee, 6th Annual Conference on Carbon Capture and Sequestration, Pittsburg, PA, Conference on Carbon Capture and Sequestration (2007 - 2007)
  • Editorial Board, SPE Reservoir Evalulation & Engineering, Society of Petroleum Engineers (2006 - 2009)
  • Member, American Geophysical Union (AGU), American Geophysical Union (2006 - Present)
  • Member, Energy Committee, Woods Institute for the Environment at Stanford University (2005 - Present)
  • Chair, Energy Resources Engineering Admissions Committee, Stanford University (2005 - Present)
  • Chair of Steering Committee, SPE Forum, Enhanced Oil Recovery: What's Next?, Society of Petroleum Engineers (2005 - 2006)
  • Invited Speaker, BP Anchorage, AK, and ExxonMobil Research and Engineering Co. Clinton, NJ (2005 - 2005)
  • Steering Committee Member, 4th Annual Conference on Carbon Capture and Sequestration, Alexandria, VA, Conference on Carbon Capture and Sequestration (2005 - 2005)
  • SPE Western Regional Meeting Program Committee and Session Chair, Society of Petroleum Engineers (2005 - 2005)
  • Freshman Advisor, Stanford University (2004 - 2008)
  • Marshall, 113th Commencement, June 13, Stanford University (2004 - 2004)
  • Invited Speaker: Petroleum Technology Transfer Council, SPE Advanced Technology Workshop on Reservoir Physics, Gordon Reseach Conference--Flow and Transport in Permeable Media, Society of Petroleum Engineers (2004 - 2004)
  • Journal of Petroleum Technology, Editorial Committee, Journal of Petroleum Technology (2004 - Present)
  • Chair, SPE Continuing Education Committee, Society of Petroleum Engineers (2004 - 2005)
  • Invited Speaker: Department of Chemical Engineering, University of California, Berkeley,, University of California, Berkeley, PetroChina, Beijing China, Aera Energy LLC, Bakersfield, CA (2003 - 2003)
  • Organizer, ACS Award in Colloid Chemistry Symposium Honoring Clayton J. Radke, American Chemical Society (2003 - 2003)
  • Editor of a Special Issue of the Journal of Petroleum Science and Engineering honoring Professor W. E. Brigham, Journal of Petroleum Science and Engineering (2003 - 2003)
  • Member, Faculty Search Committee, Petroleum Engineering, Stanford University (2002 - 2003)
  • Invited Speaker: Department of Civil Engineering, University of California, Berkeley, Huainan Institute of Technology, Anhui China, University of California, Berkeley and Huainan Institute of Technology, Anhui China (2002 - 2002)
  • Session Chairman: SPE/DOE Improved Oil Recovery Symposium, Society of Petroleum Engineers and Department of Energy (2002 - 2002)
  • Invited Speaker, Petroleum Technology Transfer Council (2001 - 2001)
  • Invited Panelist, DOE Multiscale Reservoir Investigation Symposium, Organizer SPE Western Region Student Paper Contest, Department of Energy and Society of Petroleum Engineers (2001 - 2001)
  • Faculty Search Committee, Geological and Environmental Sciences, Stanford University (2000 - 2000)
  • Member, Earth Systems Advisory Committee, Stanford University (2000 - Present)
  • Invited Speaker, Chevron Petroleum Technology Co. (2000 - 2000)
  • Technical Editor, SPE Reservoir Engineering and Evaluation (2000 - 2006)
  • Member, Continuing Education Committee, SPE, Society of Petroleum Engineers (2000 - Present)
  • Technical Program Committee/Session Chairman: SPE/DOE Improved Oil Recovery Symposium, SPE Western Regional Meeting, Society of Petroleum Engineers and Department of Energy (2000 - 2000)
  • Instructor, Stanford Science and Engineering Academy (1999 - 1999)
  • Speaker, The President's Fund Dinner, Stanford University (1999 - 1999)
  • Faculty Advisor, SPE student chapter, Stanford University (1998 - Present)
  • Member, Petroleum Engineering Department Admissions Committee, Stanford University (1998 - 2002)
  • Invited speaker, Mobil Technology Company, Imperial Oil Resources (1998 - 1998)
  • Session Chairman: SPE/DOE 11th Symposium on Improved Oil Recovery, 7th UNITAR Conference on Heavy Crude Oil, Society of Petroleum Engineers and Department of Energy (1998 - 1998)
  • Freshman and Sophomore advisor, Stanford University (1997 - 2003)
  • Organizing Committee: Stanford and Heriot Watt University Forum on Reservoir Description and Modeling, Stanford University and Heriot Watt University (1997 - 1997)
  • Member, American Chemical Society (1997 - Present)
  • Chairman, Petroleum Engineering Department Safety Committee, Stanford University (1996 - 2008)
  • Member, School of Earth Sciences Faculty Library Committee, Stanford University (1996 - Present)
  • Member, Society of Petroleum Engineers (1994 - Present)

Professional Education


  • Ph.D., Univ. of California, BerkeleyChemical Engineering (1994)
  • B.S., Univ. of Washington, Chemical Engineering (1989)

Current Research and Scholarly Interests


Research
I am interested in the recovery of unconventional hydrocarbon resources and mitigating carbon emissions from fossil fuels via geological sequestration of greenhouse gases. My research group and I examine the physics of flow through porous media at length scales that vary from the pore to the laboratory to the reservoir. The organizing themes are flow imaging to delineate the mechanisms of multiphase flow (oil, water, and gas) in porous media and the synthesis of models from experimental, theoretical, and field data. In all of our work, physical observations, obtained mainly from laboratory and field measurements, are interwoven with theory.

Teaching
My teaching interests center broadly around education of students to meet the energy challenges that we will face this century. I teach undergraduate courses that examine the interplay of energy use and environmental issues including renewable energy resources and sustainability. At the graduate level, I offer classes on enhanced oil recovery and the thermodynamics of hydrocarbon mixtures.

Professional Activities
Member, American Geophysical Union (2006); Editorial Board, SPE Reservoir Evaluation and Engineering (2006-present); Society of Petroleum Engineers (SPE) Distinguished Achievement Award for Petroleum Engineering Faculty (2006); School of Earth Sciences Award for Excellence in Teaching (1998); Earth Systems Program Executive Committee (2002-present); Woods Institute for Environment Energy Committee (2005-present); SPE Continuing Education Committee (2000-present, chair 2004-05); steering committee chair, SPE Forum, Enhanced Oil Recovery: What's Next? (2005-06); Editorial Board of the Journal of Petroleum Technology (2004-present) and SPE Reservoir Engineering and Evaluation (2006-present); member, Society of Petroleum Engineers, American Geophysical Union, and the American Chemical Society.

2018-19 Courses


All Publications


  • Mechanisms of multiphase reactive flow using biogenically calcite-functionalized micromodels. Lab on a chip Song, W., Ogunbanwo, F., Steinsbo, M., Ferno, M. A., Kovscek, A. R. 2018

    Abstract

    Dissolution of carbonate minerals in porous media is important to many instances of subsurface flow, including geological carbon dioxide (CO2) sequestration, karst formation, and crude-oil reservoir stimulation and acidizing. Of particular interest, geological CO2 storage in deep carbonate reservoirs presents a significant long-term opportunity to mitigate atmospheric carbon emissions. The reactivity of carbonate reservoirs, however, may negatively impact storage formation integrity and hence jeopardize sequestered CO2 storage security. In this work, we develop a novel biogenically calcite-functionalized microvisual device to study the fundamental pore-scale reactive transport dynamics in carbonate formations. Importantly, we discover a new microscale mechanism that dictates the overall behavior of the reactive transport phenomenon, where the reaction product, CO2, due to carbonate rock dissolution forms a separate, protective phase that engulfs the carbonate rock grain and reduces further dissolution. The presence of the separate, protective CO2 phase determines overall dissolution patterns in the storage reservoir and leads to formation of preferential leakage paths. We scale these results using nondimensional numbers to demonstrate their influence on industrial CO2 storage security, safety, and capacity.

    View details for DOI 10.1039/c8lc00793d

    View details for PubMedID 30462124

  • Pore-scale modelling of multiphase reactive flow: application to mineral dissolution with production of CO2 JOURNAL OF FLUID MECHANICS Soulaine, C., Roman, S., Kovscek, A., Tchelepi, H. A. 2018; 855: 616–45
  • Pulsating linear in situ combustion: why do we often observe oscillatory behavior? COMPUTATIONAL GEOSCIENCES Bazargan, M., Kovscek, A. R. 2018; 22 (4): 1115–34
  • An experimental platform for triaxial high-pressure/high-temperature testing of rocks using computed tomography REVIEW OF SCIENTIFIC INSTRUMENTS Glatz, G., Lapene, A., Castanier, L. M., Kovscek, A. R. 2018; 89 (4): 045101

    Abstract

    A conventional high-pressure/high-temperature experimental apparatus for combined geomechanical and flow-through testing of rocks is not X-ray compatible. Additionally, current X-ray transparent systems for computed tomography (CT) of cm-sized samples are limited to design temperatures below 180 °C. We describe a novel, high-temperature (>400 °C), high-pressure (>2000 psi/>13.8 MPa confining, >10 000 psi/>68.9 MPa vertical load) triaxial core holder suitable for X-ray CT scanning. The new triaxial system permits time-lapse imaging to capture the role of effective stress on fluid distribution and porous medium mechanics. System capabilities are demonstrated using ultimate compressive strength (UCS) tests of Castlegate sandstone. In this case, flooding the porous medium with a radio-opaque gas such as krypton before and after the UCS test improves the discrimination of rock features such as fractures. The results of high-temperature tests are also presented. A Uintah Basin sample of immature oil shale is heated from room temperature to 459 °C under uniaxial compression. The sample contains kerogen that pyrolyzes as temperature rises, releasing hydrocarbons. Imaging reveals the formation of stress bands as well as the evolution and connectivity of the fracture network within the sample as a function of time.

    View details for DOI 10.1063/1.5030204

    View details for Web of Science ID 000431139400058

    View details for PubMedID 29716377

  • An optimization algorithm for evaluation of kinetic parameters for crude oil combustion Journal of Petroleum Science and Engineering Koh Yoo, K. H., Sampaio, L., Gerritsen, M., Kovscek, A. 2018; 169: 241-257
  • Determination of pore-scale hydrate phase equilibria in sediments using lab-on-a-chip technology LAB ON A CHIP Almenningen, S., Flatlandsmo, J., Kovscek, A. R., Ersland, G., Ferno, M. A. 2017; 17 (23): 4070–76

    Abstract

    We present an experimental protocol for fast determination of hydrate stability in porous media for a range of pressure and temperature (P, T) conditions. Using a lab-on-a-chip approach, we gain direct optical access to dynamic pore-scale hydrate formation and dissociation events to study the hydrate phase equilibria in sediments. Optical pore-scale observations of phase behavior reproduce the theoretical hydrate stability line with methane gas and distilled water, and demonstrate the accuracy of the new method. The procedure is applicable for any kind of hydrate transitions in sediments, and may be used to map gas hydrate stability zones in nature.

    View details for DOI 10.1039/c7lc00719a

    View details for Web of Science ID 000415989600012

    View details for PubMedID 29067399

  • Measurements and simulation of liquid films during drainage displacements and snap-off in constricted capillary tubes JOURNAL OF COLLOID AND INTERFACE SCIENCE Roman, S., Abu-Al-Saud, M. O., Tokunaga, T., Wan, J., Kovscek, A. R., Tchelepi, H. A. 2017; 507: 279–89

    Abstract

    When a wetting liquid is displaced by air in a capillary tube, a wetting film develops between the tube wall and the air that is responsible for the snap-off mechanism of the gas phase. By dissolving a dye in the wetting phase it is possible to relate a measure of the absorbance in the capillary to the thickness of liquid films. These data could be used to compare with cutting edge numerical simulations of the dynamics of snap-off for which experimental and numerical data are lacking. Drainage experiments in constricted capillary tubes were performed where a dyed wetting liquid is displaced by air for varying flow rates. We developed an optical method to measure liquid film thicknesses that range from 3 to 1000μm. The optical measures are validated by comparison with both theory and direct numerical simulations. In a constricted capillary tube we observed, both experimentally and numerically, a phenomenon of snap-off coalescence events in the vicinity of the constriction that bring new insights into our understanding and modeling of two-phase flows. In addition, the good agreement between experiments and numerical simulations gives confidence to use the numerical method for more complex geometries in the future.

    View details for DOI 10.1016/j.jcis.2017.07.092

    View details for Web of Science ID 000411299200030

    View details for PubMedID 28802195

  • Experimental investigation and Grand Canonical Monte Carlo simulation of gas shale adsorption from the macro to the nano scale JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING Aljamaan, H., Al Ismail, M., Kovscek, A. R. 2017; 48: 119–37
  • Multiscale Imaging of Gas Storage in Shales SPE JOURNAL Aljamaan, H., Ross, C. M., Kovscek, A. R. 2017; 22 (6): 1760–77
  • NonArrhenius kinetics for reactive transport simulations of in situ combustion JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING Bazargan, M., Kovscek, A. R. 2017; 157: 570–80
  • Creation of a dual-porosity and dual-depth micromodel for the study of multiphase flow in complex porous media LAB ON A CHIP Yun, W., Ross, C. M., Roman, S., Kovscek, A. R. 2017; 17 (8): 1462-1474

    Abstract

    Silicon-based microfluidic devices, so-called micromodels in this application, are particularly useful laboratory tools for the direct visualization of fluid flow revealing pore-scale mechanisms controlling flow and transport phenomena in natural porous media. Current microfluidic devices with uniform etched depths, however, are limited when representing complex geometries such as the multiple-scale pore sizes common in carbonate rocks. In this study, we successfully developed optimized sequential photolithography to etch micropores (1.5 to 21 μm width) less deeply than the depth of wider macropores (>21 μm width) to improve the structural realism of an existing single-depth micromodel with a carbonate-derived pore structure. Surface profilimetry illustrates the configuration of the dual-depth dual-porosity micromodel and is used to estimate the corresponding pore volume change for the dual-depth micromodel compared to the equivalent uniform- or single-depth model. The flow characteristics of the dual-depth dual-porosity micromodel were characterized using micro-particle image velocimetry (μ-PIV), relative permeability measurements, and pore-scale observations during imbibition and drainage processes. The μ-PIV technique provides insights into the fluid dynamics within microfluidic channels and relevant fluid velocities controlled predominantly by changes in etching depth. In addition, the reduction of end-point relative permeability for both oil and water in the new dual-depth dual-porosity micromodel compared to the equivalent single-depth micromodel implies more realistic capillary forces occurring in the new dual-depth micromodel. Throughout the imbibition and drainage experiments, the flow behaviors of single- and dual-depth micromodels are further differentiated using direct visualization of the trapped non-wetting phase and the preferential mobilization of the wetting phase in the dual-depth micromodel. The visual observations agree with the relative permeability results. These findings indicate that dual-porosity and dual-depth micromodels have enhanced physical realism that is pertinent to oil recovery processes in complex porous media.

    View details for DOI 10.1039/c6lc01343k

    View details for Web of Science ID 000399213700008

    View details for PubMedID 28294224

  • Analysis of the effects of copper nanoparticles on in-situ combustion of extra heavy-crude oil JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING Amanam, U. U., Kovscek, A. R. 2017; 152: 406-415
  • CO2 Storage and Flow Capacity Measurements on Idealized Shales from Dynamic Breakthrough Experiments ENERGY & FUELS Aljamaan, H., Holmes, R., Vishal, V., Haghpanah, R., Wilcox, J., Kovscek, A. R. 2017; 31 (2): 1193-1207
  • Multiscale pore structure characterization of middle east carbonates JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING Gundogar, A. S., Ross, C. M., Akin, S., Kovscek, A. R. 2016; 146: 570-583
  • In-Situ Visualization of Multidimensional Imbibition in Dual-Porosity Carbonates SPE JOURNAL Alshehri, A. J., Kovscek, A. R. 2016; 21 (5): 1631-1642
  • Pore-level hydrate formation mechanisms using realistic rock structures in high-pressure silicon micromodels INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL Hauge, L. P., Gauteplass, J., Hoyland, M. D., Ersland, G., Kovscek, A., Ferno, M. A. 2016; 53: 178-186
  • Visualization and Quantification of Thermally Induced Porosity Alteration of Immature Source Rock Using X-ray Computed Tomography ENERGY & FUELS Glatz, G., Castanier, L. M., Kovscek, A. R. 2016; 30 (10): 8141-8149
  • Particle velocimetry analysis of immiscible two-phase flow in micromodels ADVANCES IN WATER RESOURCES Roman, S., Soulaine, C., Abu AlSaud, M., Kovscek, A., Tchelepi, H. 2016; 95: 199-211
  • Direct visualization of pore-scale fines migration and formation damage during low-salinity waterflooding JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING Song, W., Kovscek, A. R. 2016; 34: 1276-1283
  • An Experimental Investigation of Viscous-Oil Recovery Efficiency as a Function of Voidage-Replacement Ratio SPE JOURNAL Kim, T. W., VITTORATOS, E., Kovscek, A. R. 2016; 21 (4): 1236-1253
  • Experimental Study of Foam Generation, Sweep Efficiency, and Flow in a Fracture Network SPE JOURNAL Ferno, M. A., Gauteplass, J., Pancharoen, M., Haugen, A., Graue, A., Kovscek, A. R., Hirasaki, G. 2016; 21 (4): 1140-1150
  • Pore-level mechanics of foam generation and coalescence in the presence of oil ADVANCES IN COLLOID AND INTERFACE SCIENCE Almajid, M. M., Kovscek, A. R. 2016; 233: 65-82

    Abstract

    The stability of foam in porous media is extremely important for realizing the advantages of foamed gas on gas mobility reduction. Foam texture (i.e., bubbles per volume of gas) achieved is dictated by foam generation and coalescence processes occurring at the pore-level. For foam injection to be widely applied during gas injection projects, we need to understand these pore-scale events that lead to foam stability/instability so that they are modeled accurately. Foam flow has been studied for decades, but most efforts focused on studying foam generation and coalescence in the absence of oil. Here, the extensive existing literature is reviewed and analyzed to identify open questions. Then, we use etched-silicon micromodels to observe foam generation and coalescence processes at the pore-level. Special emphasis is placed on foam coalescence in the presence of oil. For the first time, lamella pinch-off as described by Myers and Radke [40] is observed in porous media and documented. Additionally, a new mechanism coined "hindered generation" is found. Hindered generation refers to the role oil plays in preventing the successful formation of a lamella following snap-off near a pore throat.

    View details for DOI 10.1016/j.cis2015.10.008

    View details for Web of Science ID 000379564300005

    View details for PubMedID 26548502

  • Understanding the role of brine ionic composition on oil recovery by assessment of wettability from colloidal forces ADVANCES IN COLLOID AND INTERFACE SCIENCE Alshakhs, M. J., Kovscek, A. R. 2016; 233: 126-138

    Abstract

    The impact of injection brine salinity and ionic composition on oil recovery has been an active area of research for the past 25years. Evidence from laboratory studies and field tests suggests that implementing certain modifications to the ionic composition of the injection brine leads to greater oil recovery. The role of salinity modification is attributed to its ability to shift wettability of a rock surface toward water wetness. The amount of trapped oil released depends on the nature of rock, oil, and brine surface interactions. Reservoir rocks exhibit different affinities to fluids. Carbonates show stronger adsorption of oil films as opposed to the strongly water-wet and mixed-wet sandstones. The concentration of divalent ions and total salinity of the injection brine are other important factors to consider. Accordingly, this paper provides a review of laboratory and field studies of the role of brine composition on oil recovery from carbonaceous rock as well as rationalization of results using DLVO (Derjaguin, Landau, Verwey and Overbeek) theory of surface forces. DLVO evaluates the contribution of each component of the oil/brine/rock system to the wettability. Measuring zeta potential of each pair of surfaces by a charged particle suspension method is used to estimate double layer forces, disjoining pressure, and contact-angle. We demonstrate the applicability of the DLVO approach by showing a comprehensive experimental study that investigates the effect of divalent ions in carbonates, and uses disjoining pressure results to rationalize observations from core flooding and direct contact-angle measurements.

    View details for DOI 10.1016/j.cis.2015.08.004

    View details for Web of Science ID 000379564300009

    View details for PubMedID 26344867

  • Characterization and Measurement of Multiscale Gas Transport in Shale-Core Samples SPE JOURNAL Alnoaimi, K. R., Duchateau, C., Kovscek, A. R. 2016; 21 (2): 573-588
  • Characterization of scalar mixing in dense gaseous jets using X-ray computed tomography EXPERIMENTS IN FLUIDS Dunnmon, J., Sobhani, S., Kim, T. W., Kovscek, A., Ihme, M. 2015; 56 (10)
  • Functionalization of micromodels with kaolinite for investigation of low salinity oil-recovery processes. Lab on a chip Song, W., Kovscek, A. R. 2015; 15 (16): 3314-3325

    Abstract

    Sandstone formations are ubiquitous in both aquifers and petroleum reservoirs, of which clay is a major constituent. The release of clay particles from pore surfaces as a result of reduced injection fluid salinity can greatly modify the recovery of hydrocarbons from subsurface formations by shifting the wettability properties of the rock. In this paper we demonstrate a microfluidic approach whereby kaolinite is deposited into a two-dimensional microfluidic network (micromodel) to enable direct pore-scale, real-time visualization of fluid-solid interactions with representative pore-geometry and realistic surface interactions between the reservoir fluids and the formation rock. Structural characterization of deposited kaolinite particles agrees well with natural modes of occurrence in Berea sandstones; hence, the clay deposition method developed in this work is validated. Specifically, more than 90% of the deposited clay particles formed pore-lining structures and the remainder formed pore bridging structures. Further, regions of highly concentrated clay deposition likely leading to so-called Dalmatian wetting properties were found throughout the micromodel. Two post-deposition treatments are described whereby clay is adhered to the silicon surface reversibly and irreversibly resulting in microfluidic systems that are amenable to studies on (i) the fundamental mechanisms governing the increased oil recovery during low salinity waterfloods and (ii) the effect of a mixed-wet surface on oil recovery, respectively. The reversibly functionalized platform is used to determine the conditions at which stably adhered clay particles detach. Specifically, injection brine salinity below 6000 ppm of NaCl induced kaolinite particle release from the silicon surface. Furthermore, when applied to an aged system with crude oil, the low salinity waterflood recovered an additional 14% of the original oil in place compared to waterflooding with the formation brine.

    View details for DOI 10.1039/c5lc00544b

    View details for PubMedID 26151880

  • Imaging-Based Characterization of Calcite-Filled Fractures and Porosity in Shales SPE JOURNAL Vega, B., Ross, C. M., Kovscek, A. R. 2015; 20 (4): 810-823
  • Microvisual investigation of polymer retention on the homogeneous pore network of a micromodel JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING Yun, W., Kovscek, A. R. 2015; 128: 115-127
  • Pore-level foam generation and flow for mobility control in fractured systems COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS Gauteplass, J., Chaudhary, K., Kovscek, A. R., Ferno, M. A. 2015; 468: 184-192
  • A Reaction Model-Free Approach for In Situ Combustion Calculations: 1-Kinetics Prediction TRANSPORT IN POROUS MEDIA Bazargan, M., Kovscek, A. R. 2015; 107 (2): 507-525
  • An experimental investigation of the in-situ combustion behavior of Karamay crude oil JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING Zhao, R., Chen, Y., Huan, R., Castanier, L. M., Kovscek, A. R. 2015; 127: 82-92
  • Kinetics Oxidation of Heavy Oil. 2. Application of Genetic Algorithm for Evaluation of Kinetic Parameters ENERGY & FUELS Lapene, A., Debenest, G., Quintard, M., Castanier, L. M., Gerritsen, M. G., Kovscek, A. R. 2015; 29 (2): 1119-1129

    View details for DOI 10.1021/ef501392k

    View details for Web of Science ID 000349943300073

  • Functionalization of micromodels with kaolinite for investigation of low salinity oil-recovery processes LAB ON A CHIP Song, W., Kovscek, A. R. 2015; 15 (16): 3314-3325

    View details for DOI 10.1039/c5lc00544b

    View details for Web of Science ID 000358609500008

  • Gas Sorption and the Consequent Volumetric and Permeability Change of Coal I: Experimental TRANSPORT IN POROUS MEDIA Lin, W., Kovscek, A. R. 2014; 105 (2): 371-389
  • Gas Sorption and the Consequent Volumetric and Permeability Change of Coal II: Numerical Modeling TRANSPORT IN POROUS MEDIA Lin, W., Kovscek, A. R. 2014; 105 (1): 23-42
  • Fines migration and compaction in diatomaceous rocks JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING Lagasca, J. R., Kovscek, A. R. 2014; 122: 108-118
  • Klinkenberg effect on predicting and measuring helium permeability in gas shales INTERNATIONAL JOURNAL OF COAL GEOLOGY Firouzi, M., Alnoaimi, K., Kovscek, A., Wilcox, J. 2014; 123: 62-68
  • Consistency Measures for Isoconversional Interpretation of In-Situ Combustion Reaction Kinetics ENERGY & FUELS Chen, B., Castanier, L. M., Kovscek, A. R. 2014; 28 (2): 868-876

    View details for DOI 10.1021/ef4020235

    View details for Web of Science ID 000331861800017

  • CT Imaging of Low-Permeability, Dual-Porosity Systems Using High X-ray Contrast Gas Transport in Porous Media Vega, B., Dutta, A., Kovscek, A. R. 2014; 101 (1): 81-97
  • Solar-generated steam for oil recovery: Reservoir simulation, economic analysis, and life cycle assessment ENERGY CONVERSION AND MANAGEMENT Sandler, J., Fowler, G., Cheng, K., Kovscek, A. R. 2014; 77: 721-732
  • CT Imaging of Low-Permeability, Dual-Porosity Systems Using High X-ray Contrast Gas TRANSPORT IN POROUS MEDIA Vega, B., Dutta, A., Kovscek, A. R. 2014; 101 (1): 81-97
  • (Submitted) Solar-Generated Steam for Oil Recovery: Reservoir Simulation, Economic Analysis, and Life Cycle Assessment Energy Conversion and Management Sandler, J., Fowler, G., Cheng, K., Kovscek, A. R. 2014
  • Fuel Formation and Conversion During In-Situ Combustion of Crude Oil SPE JOURNAL Hascakir, B., Ross, C. M., Castanier, L. M., Kovscek, A. R. 2013; 18 (6): 1217-1228
  • An induction reactor for studying crude-oil oxidation relevant to in situ combustion. Review of scientific instruments Bazargan, M., Lapene, A., Chen, B., Castanier, L. M., Kovscek, A. R. 2013; 84 (7): 075115-?

    Abstract

    In a conventional ramped temperature oxidation kinetics cell experiment, an electrical furnace is used to ramp temperature at a prescribed rate. Thus, the heating rate of a kinetics cell experiment is limited by furnace performance to heating rates of about 0.5-3 °C/min. A new reactor has been designed to overcome this limit. It uses an induction heating method to ramp temperature. Induction heating is fast and easily controlled. The new reactor covers heating rates from 1 to 30 °C/min. This is the first time that the oxidation profiles of a crude oil are available over such a wide range of heating rate. The results from an induction reactor and a conventional kinetics cell at roughly 2 °C/min are compared to illustrate consistency between the two reactors. The results at low heating rate are the same as the conventional kinetics cell. As presented in the paper, the new reactor couples well with the isoconversional method for interpretation of reaction kinetics.

    View details for DOI 10.1063/1.4815827

    View details for PubMedID 23902114

  • An induction reactor for studying crude-oil oxidation relevant to in situ combustion REVIEW OF SCIENTIFIC INSTRUMENTS Bazargan, M., Lapene, A., Chen, B., Castanier, L. M., Kovscek, A. R. 2013; 84 (7)

    View details for DOI 10.1063/1.4815827

    View details for Web of Science ID 000322602200078

    View details for PubMedID 23902114

  • Wettability Alteration of a Heavy Oil/Brine/Carbonate System with Temperature ENERGY & FUELS Kim, T. W., Kovscek, A. R. 2013; 27 (6): 2984-2998

    View details for DOI 10.1021/ef400204k

    View details for Web of Science ID 000320911200014

  • Pore-Scale Evaluation of Polymers Displacing Viscous Oil-Computational-Fluid-Dynamics Simulation of Micromodel Experiments SPE RESERVOIR EVALUATION & ENGINEERING Clemens, T., Tsikouris, K., Buchgraber, M., Castanier, L., Kovscek, A. 2013; 16 (2): 144-154
  • Improved Predictability of In-Situ-Combustion Enhanced Oil Recovery SPE RESERVOIR EVALUATION & ENGINEERING Kovscek, A. R., Castanier, L. M., Gerritsen, M. G. 2013; 16 (2): 172-182
  • Nonequilibrium Effects and Multiphase Flow in Porous Media TRANSPORT IN POROUS MEDIA Aryana, S. A., Kovscek, A. R. 2013; 97 (3): 373-394
  • Modification of heavy-oil rheology via alkaline solutions JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING Zhao, R. B., Tang, G. Q., Kovscek, A. R. 2013; 103: 41-50
  • An Experimental Investigation of the In-Situ Combustion Behavior of Karamay Crude Oil SPE Western Regional Meeting Zhao, R., Castanier, L. M., Kovscek, A. R. 2013
  • Solar-Generated Steam for Heavy-Oil Recovery: A Coupled Geomechanical and Reservoir Modeling Analysis SPE Western Regional Meeting Agarwal, A., Kovscek, A. R. 2013
  • Optimal Voidage Replacement Ratio for Viscous and Heavy Oil Reservoirs SPE Western Regional Meeting Delgado, D. E., Vittoratos, E. S., Kovscek, A. R. 2013
  • History and Application of Resistance Electrical Heaters in Downhole Oil Field Applications SPE Western Regional Meeting Sandberg, C., Hale, A., Kovscek, A. R. 2013
  • Experiments and analysis of drainage displacement processes relevant to carbon dioxide injection PHYSICAL REVIEW E Aryana, S. A., Kovscek, A. R. 2012; 86 (6)

    Abstract

    The motivation for this work is a dramatically improved understanding of the fluid mechanics of drainage processes with applications such as CO_{2} storage in saline aquifers and water-alternating-gas injection as an enhanced oil recovery method. In this paper we present in situ distributions of wetting and nonwetting fluids obtained during core-scale two-phase immiscible drainage experiments. The ratio of the viscosity of the resident fluid to that of the invading fluid varies across a range of 0.43 to 150. Saturation distributions observed during dynamic displacement experiments are surprisingly smooth and do not display only one or a few dominant fingers, contrary to the indications of the current literature. The analysis of the saturation distribution using the fractal dimensions of the dynamic three-dimensional saturation distributions suggests that the constitutive relationships for porous media, namely, the relative permeability functions, are history dependent. Accordingly, it is suggested that the nonlinear, unstable flow regime is the regime where efforts to improve physical understanding must be focused.

    View details for DOI 10.1103/PhysRevE.86.066310

    View details for Web of Science ID 000312297400004

    View details for PubMedID 23368041

  • A Study of Microscale Gas Trapping Using Etched Silicon Micromodels TRANSPORT IN POROUS MEDIA Buchgraber, M., Kovscek, A. R., Castanier, L. M. 2012; 95 (3): 647-668
  • Modeling foam displacement in fractures JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING Pancharoen, M., Ferno, M. A., Kovscek, A. R. 2012; 100: 50-58
  • Experiments and Analysis of Multiscale Viscous Fingering During Forced Imbibition SPE Annual Technical Conference and Exhibition Sharma, J., Inwood, S. B., Kovscek, A. R. SOC PETROLEUM ENG. 2012: 1142–59
  • Emerging challenges and potential futures for thermally enhanced oil recovery JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING Kovscek, A. R. 2012; 98-99: 130-143
  • Creation of a dual-porosity micromodel for pore-level visualization of multiphase flow JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING Buchgraber, M., Al-Dossary, M., Ross, C. M., Kovscek, A. R. 2012; 86-87: 27-38
  • Executive Summary SPE JOURNAL Kovscek, A. R. 2012; 17 (1): 7-7
  • Microvisual Investigation of Foam Flow in Ideal Fractures: Role of Fracture Aperture and Surface Roughness SPE Annual Technical Conference and Exhibition Buchgraber, M., Castanier, L. M., Kovscek, A. R. 2012
  • Emerging Challenges and Potential Futures for Thermally Enhanced Oil Recovery Journal of Petroleum Science & Engineering Kovscek, A. R. 2012: 98-99 130-143
  • Pore-Scale Evaluation of Polymers Displacing Viscous Oil – Computational Fluid Dynamics Simulation of Micromodel Experiments, SPE 154169 Proceedings of the Eighteenth SPE Improved Oil Recovery Symposium held in Tulsa, Oklahoma, USA, 14–18 April 2012 Clemens, T., Tsikouris, K., Buchgraber, M., Castanier, L. M., Kovscek, A. R. 2012
  • Solar-Generated Steam for Oil Recovery: Reservoir Simulation, Economic Analysis, and Life Cycle Assessment, SPE Western Regional Meeting Sandler, J., Fowler, G., Cheng, K., Kovscek, A. R. 2012
  • Uncertainty Analysis on In-Situ Combustion Simulations Using Experimental Design SPE Western Regional Meeting Ogunbanwo, O., Gerritsen, M., Kovscek, A. R. 2012
  • An X-Ray CT Study of Multidimensional Imbibition in Dual Porosity Carbonates SPE Annual Technical Conference and Exhibition Alshehri, A. J., Kovscek, A. R. 2012
  • Kinetics Oxidation of Heavy Oil. 1. Compositional and Full Equation of State Model ENERGY & FUELS Lapene, A., Debenest, G., Quintard, M., Castanier, L. M., Gerritsen, M. G., Kovscek, A. R. 2011; 25 (11): 4886-4895

    View details for DOI 10.1021/ef200365y

    View details for Web of Science ID 000297001400003

  • Combustion Kinetics of Heavy Oils in Porous Media ENERGY & FUELS Cinar, M., Castanier, L. M., Kovscek, A. R. 2011; 25 (10): 4438-4451

    View details for DOI 10.1021/ef200680t

    View details for Web of Science ID 000296212900024

  • Predictability of Crude Oil In-Situ Combustion by the Isoconversional Kinetic Approach SPE JOURNAL Cinar, M., Hascakir, B., Castanier, L. M., Kovscek, A. R. 2011; 16 (3): 537-547
  • In-Situ Combustion Dynamics Visualized With X-Ray Computed Tomography SPE JOURNAL Hascakir, B., Glatz, G., Castanier, L. M., Kovscek, A. R. 2011; 16 (3): 524-536
  • A Microvisual Study of the Displacement of Viscous Oil by Polymer Solutions SPE RESERVOIR EVALUATION & ENGINEERING Buchgraber, M., Clemens, T., Castanier, L. M., Kovscek, A. R. 2011; 14 (3): 269-280
  • Temperature-Induced Fracture Reconsolidation of Diatomaceous Rock During Forced Water Imbibition SPE RESERVOIR EVALUATION & ENGINEERING Peng, J., Kovscek, A. R. 2011; 14 (1): 45-59
  • High Resolution Imaging of Unstable, Forced Imbibition in Berea Sandstone TRANSPORT IN POROUS MEDIA Tang, G., Kovscek, A. R. 2011; 86 (2): 647-664
  • Experiments and Analysis of Multiscale Viscous Fingering during Forced Imbibition, SPE-143946 Proceedings of the 2011 SPE Annual Technical Conference and Exhibition, Denver, CO 30 Oct - 2 Nov Sharma, J., Inwood, S. B., Kovscek, A. R. 2011
  • A Microvisual Study of the Displacement of Viscous Oil by Polymer Solutions SPE Reservoir Evaluation & Engineering Buchgraber, M., Clemens, T., Castanier, L., Kovscek, A. 2011; 14 (3)

    View details for DOI 10.2118/122400-pa

  • Kinetic Cell and Combustion Tube Results for a Central European Crude Oil SPE Annual Technical Conference and Exhibition Glatz, G., Hascakir, B., Castanier, L. M., Clemens, T., Kovscek, A. R. 2011
  • A Combined Experimental and Simulation Workflow to Improve Predictability of In Situ Combustion Western North America Regional Meeting Bazargan, M., Chen, B., Cinar, M., Glatz, G., Lapene, A., Zhu, Z., Castanier, L., Gerritsen, M., Kovscek, A. R. 2011
  • Fuel Formation During In-Situ Combustion SPE Annual Technical Conference and Exhibition Hascakir, B., Ross, C. M., Castanier , L. M., Kovscek, A. R. 2011
  • Thermally Induced Fracture Reconsolidation of Diatomite Under No Flow Conditions Western North America Regional Meeting Vega, B., Tang, G., Kovscek, A. R. 2011
  • Upscaling for Field-scale In-situ Combustion Simulation Western North America Regional Meeting Zhu, Z., Bazargan, M., Lapene, A., Gerritsen, M., Castanier, L., Kovscek, A. 2011
  • Improved Predictability of In-Situ Combustion Enhanced Oil Recovery Proceedings of the 2011 International Energy Agency EOR Symposium, Vienna Austria 17-19 October 2011 Kovscek, A. R., Castanier, L. M., Gerritsen, M. G. 2011
  • Super insulated wells to protect permafrost during thermal oil recovery INTERNATIONAL JOURNAL OF OIL GAS AND COAL TECHNOLOGY Marques, C., Castanier, L. M., Kovscek, A. R. 2011; 4 (1): 4-30
  • Wettability estimation of low-permeability, siliceous shale using surface forces JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING Takahashi, S., Kovscek, A. R. 2010; 75 (1-2): 33-43
  • Untitled SPE JOURNAL Kovscek, A. R. 2010; 15 (3): 586-586
  • Time-Dependent Shape Factors for Uniform and Non-Uniform Pressure Boundary Conditions TRANSPORT IN POROUS MEDIA Rangel-German, E. R., Kovscek, A. R., Akin, S. 2010; 83 (3): 591-601
  • Modeling Foam Displacement With the Local-Equilibrium Approximation: Theory and Experimental Verification 2008 SPE Annual Technical Conference and Exhibition Chen, Q., Gerritsen, M. G., Kovscek, A. R. SOC PETROLEUM ENG. 2010: 171–83
  • Spontaneous countercurrent imbibition and forced displacement characteristics of low-permeability, siliceous shale rocks JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING Takahashi, S., Kovscek, A. R. 2010; 71 (1-2): 47-55
  • An Experimental Investigation Of In-Situ Combustion In Heterogeneous Media Canadian Unconventional Resources & International Petroleum Conference Awoleke, O. G., Castanier, L. M., Kovscek, A. R. 2010
  • Storage of Greenhouse Gases in Oil and Gas Reservoirs Developments and Innovation in Carbon Capture and Storage (CCS) Technology Vega, B., Kovscek, A. R. edited by Maroto-Valer, M. M. Woodhead Publishing LTD, Cambridge, UK. 2010
  • Improving Steam-Assisted Gravity Drainage Using Mobility Control Foams: Foam Assisted-SAGD (FA-SAGD) SPE Improved Oil Recovery Symposium Chen, Q., Gerritsen, M., Kovscek, A. 2010

    View details for DOI 10.2118/129847-ms

  • Inaccessible Pore Volume of Associative Polymer Floods SPE Improved Oil Recovery Symposium Pancharoen, M., Thiele, M. R., Kovscek, A. R. 2010
  • Experimental Investigation of Oil Recovery From Siliceous Shale by Miscible CO2 Injection SPE Annual Technical Conference and Exhibition Vega, B., O’Brien, W. J., Kovscek, A. R. 2010
  • Reservoir Simulation of Cyclic Steam Injection Including the Effects of Temperature Induced Wettability Alteration Western North America Regional Meeting Hascakir, B., Kovscek, A. R. 2010
  • Isoconversional Kinetic Analysis of the Combustion of Heavy Hydrocarbons ENERGY & FUELS Cinar, M., Castanier, L. M., Kovscek, A. R. 2009; 23 (8): 4003-4015

    View details for DOI 10.1021/ef900222w

    View details for Web of Science ID 000269088300023

  • Oil chemistry and its impact on heavy oil solution gas drive JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING Peng, J., Tang, G., Kovscek, A. R. 2009; 66 (1-2): 47-59
  • Spontaneous imbibition and wettability characteristics of Powder River Basin coal INTERNATIONAL JOURNAL OF COAL GEOLOGY Chaturvedi, T., Schembre, J. M., Kovscek, A. R. 2009; 77 (1-2): 34-42
  • Pore-Level Mechanics of Forced and Spontaneous Imbibition of Aqueous Surfactant Solutions in Fractured Porous Media SPE Annual Technical Conference and Exhibition Alshehri, A. J., Sagatov, E., Kovscek, A. R. 2009
  • Isoconversional Kinetic Analysis of the Combustion of Heavy Hydrocarbons SPE Western Regional Meeting Cinar, M., Castanier, L. M., Kovscek, A. R. 2009
  • Overview-Heavy Oil Journal of Petroleum Technology Kovscek, A. R. 2009; 61 (3): 76
  • Spontaneous Countercurrent Imbibition and Forced Displacement Characteristics of Low-Permeability, Siliceous Shale Rocks SPE Western Regional Meeting Takahashi, S., Kovscek, A. R. 2009
  • The Displacement of Viscous Oil by Associative Polymer Solutions SPE Annual Technical Conference and Exhibition Buchgraber, M., Clemens, T., Castanier, L. M., Kovscek, A. R. 2009
  • Thaw Front Dynamics and Super Insulated Wells for Thermal Recovery in Cold Environments SPE Western Regional Meeting Marques, C., Castanier, L. M., Kovscek, A. R. 2009
  • Effects of Reservoir Heterogeneities on the Steam-Assisted Gravity-Drainage Process SPE RESERVOIR EVALUATION & ENGINEERING Chen, Q., Gerritsen, M. G., Kovscek, A. R. 2008; 11 (5): 921-932
  • Sorption-induced permeability change of coal during gas-injection processes SPE RESERVOIR EVALUATION & ENGINEERING Lin, W., Tang, G., Kovscek, A. R. 2008; 11 (4): 792-802
  • Laboratory and simulation investigation of enhanced coalbed methane recovery by gas injection TRANSPORT IN POROUS MEDIA Jessen, K., Tang, G., Kovscek, A. R. 2008; 73 (2): 141-159
  • Authors' reply to discussion of interrelationship of temperature and wettability on the relative permeability of heavy oil in diatomaceous rocks SPE RESERVOIR EVALUATION & ENGINEERING Kovscek, A. R., Schembro, J. M., Tang, G. 2008; 11 (3): 437-438
  • Combination of well log and pore-scale data to predict petrophysical properties of diatomite JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING Akin, S., Ross, C. M., Kovscek, A. R. 2008; 60 (3-4): 133-149
  • Alteration of Reservoir Diatomites by Hot Water Injection SPE Western Regional Meeting Ikeda, M., Tang, G., Ross, C. M., Kovscek, A. R. 2008
  • Modeling Foam Displacement with the Local Equilibrium Approximation: Theory and Experiment Verification SPE Annual Technical Conference and Exhibition Chen, Q., Gerritsen, M. G., Kovscek, A. R. 2008
  • Enhanced Oil Recovery Using Aqueous Phase Chemicals, Miscible Gas Injection, and Thermal Means, in Petroleum Engineering-Upstream Encyclopedia of Life Support Systems (EOLSS) Kovscek, A. R. edited by Mesini, E., Macini, P. 2008
  • Polymer Augmented Waterflooding Encyclopedia of Petroleum Science & Engineering Kovscek, A. R. edited by Antos, G. J. Marcel Dekker, New York. 2008
  • Overview-Heavy Oil Journal of Petroleum Technology Kovscek, A. R. 2008; 60 (3): 84
  • Petroleum Recovery Encyclopedia of Petroleum Science & Engineering Kovscek, A. R. edited by Antos, G. J. Marcel Dekker, New York. 2008
  • Foam Transport in Porous Media Encyclopedia of Petroleum Science & Engineering Kovscek, A. R., Radke , C. J. edited by Antos, G. J. Marcel Dekker, New York. 2008
  • Laboratory investigation of the effect of solvent injection on in-situ combustion SOC PETROLEUM ENG. Cristofari, J., Castanier, L. M., Kovscek, A. R. 2008: 153-163
  • Immiscible Carbon Dioxide Displacement Encyclopedia of Petroleum Science & Engineering Kovscek, A. R. edited by Speight, J. G. Marcel Dekker, New York. 2008
  • Experimental Investigation of Oil Recovery From Siliceous Shale by CO2 Injection SPE Annual Technical Conference and Exhibition Kovscek, A., Tang, G., Vega , B. 2008

    View details for DOI 10.2118/115679-ms

  • Improved Analysis of the Kinetics of Crude-Oil In-Situ Combustion SPE Western Regional Meeting Cinar, M., Castanier, L. M., Kovscek, A. R. 2008
  • Correlation of Cold Production Behavior with Acid/Base Number and Asphaltene Content of Heavy Oil, SPE 114196 Proceedings of the SPE Western Regional Meeting, Bakersfield, CA. 31 Mar - 2 Apr 2008 Peng, J., Tang, G. Q., Kovscek, A. R. 2008
  • A pore-network-modeling approach to predict petrophysical properties of diatomaceous reservoir rock 2005 SPE Western Regional Meeting Jia, L., Ross, C. M., Kovscek, A. R. SOC PETROLEUM ENG. 2007: 597–608
  • Verification of Roof snap off as a foam-generation mechanism in porous media at steady state COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS Kovscek, A. R., Tang, G., RADKE, C. J. 2007; 302 (1-3): 251-260
  • Forced imbibition in natural porous media: Comparison between experiments and continuum models PHYSICAL REVIEW E Riaz, A., Tang, G., Tchelepi, H. A., Kovscek, A. R. 2007; 75 (3)

    Abstract

    A well-characterized set of large-scale laboratory experiments is presented, illustrating forced imbibition displacements in the presence of irreducible wetting phase saturation in a cylindrical, homogeneous Berea sandstone rock. Experiments are designed to operate in the regime of compact microscopic flows and large-scale viscous instability. The distribution of fluid phases during the flow process is visualized by high-resolution computed tomography imaging. Linear stability analysis and high-accuracy numerical simulations are employed to analyze the ability of macroscopic continuum equations to provide a consistent approximation of the displacement process. The validity of the equilibrium relative permeability functions, which form the basis for the continuum model, is fundamentally related to the stability of the displacement process. It is shown that not only is the stable flow regime modeled accurately by existing continuum models, but the onset of instability as well as the initial unstable modes are also determined with reasonable accuracy for unstable flows. However, the continuum model is found to be deficient in the case of fully developed unstable flows.

    View details for DOI 10.1103/PhysRevE.75.036305

    View details for Web of Science ID 000245324700043

    View details for PubMedID 17500789

  • Sorption-Induced Permeability Change of Coal During Gas-Injection Processes, SPE-109855 , Proceedings of the SPE Annual Technical Conference and Exhibition, Anaheim, CA Lin, W., Tang, G. Q., Kovscek, A. R. 2007
  • Overview-Heavy Oil Journal of Petroleum Technology Kovscek, A. R. 2007; 59 (4): 82
  • Effects of Reservoir Heterogeneities on the Steam-Assisted Gravity Drainage Process SPE Annual Technical Conference and Exhibition Chen, Q., Gerritsen, M. G., Kovscek, A. R. 2007
  • Multicomponent Sorption Modeling in ECBM Displacement Calculations SPE Annual Technical Conference and Exhibition Jessen, K., Tang, G., Kovscek, A. R. 2007
  • Oil Recovery and Fracture Reconsolidation of Diatomaceous Reservoir Rock by Water Imbibition at High Temperature SPE Annual Technical Conference and Exhibition Ikeda, M., Tang, G., Ross, C. M., Kovscek, A. R. 2007
  • Time-dependent matrix-fracture shape factors for partially and completely immersed fractures JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING Rangel-German, E. R., Kovscek, A. R. 2006; 54 (3-4): 149-163
  • Trapped gas fraction during steady-state foam flow 2004 SPE Annual Technical Conference and Exhibition Tang, G., Kovscek, A. R. SPRINGER. 2006: 287–307
  • Estimation of dynamic relative permeability and capillary pressure from countercurrent imbibition experiments TRANSPORT IN POROUS MEDIA Schembre, J. M., Kovscek, A. R. 2006; 65 (1): 31-51
  • A laboratory investigation of temperatrue-induced sand consolidation 2005 SPE Western Regional Meeting Ross, C. M., Rangel-German, E. R., Castanier, L. M., Hara, P. S., Kovscek, A. R. SOC PETROLEUM ENG. 2006: 206–15
  • Wettability alteration and oil recovery by water imbibition at elevated temperatures 8th International Symposium on Reservoir Wettability Schembre, J. M., Tang, G., Kovscek, A. R. ELSEVIER SCIENCE BV. 2006: 131–48
  • Heavy-oil solution gas drive in consolidated and unconsolidated rock 2004 SPE International Thermal Operations and Heavy Oil Symposium/Western Regional Meeting Tang, G., Sahni, A., Gadelle, F., Kumar, M., Kovscek, A. R. SOC PETROLEUM ENG. 2006: 259–68
  • Interrelationship of temperature and wettability on the relative permeability of heavy oil in diatomaceous rocks 2005 SPE Western Regional Meeting Schembre, J. M., Tang, G., Kovscek, A. R. SOC PETROLEUM ENG. 2006: 239–50
  • Nonequilibrium effects during spontaneous imbibition TRANSPORT IN POROUS MEDIA Le Guen, S. S., Kovscek, A. R. 2006; 63 (1): 127-146
  • A micromodel investigation of two-phase matrix-fracture transfer mechanisms WATER RESOURCES RESEARCH Rangel-German, E. R., Kovscek, A. R. 2006; 42 (3)
  • An investigation of the effect of oil composition on heavy-oil solution gas drive 2003 SPE Annual Technical Conference and Exhibition Tang, G. Q., Leung, T., Castanier, L. M., Sahni, A., Gadelle, F., Kumar, M., Kovscek, A. R. SOC PETROLEUM ENG. 2006: 58–70
  • Asphaltene deposition during steam-assisted gravity drainage: Effect of non-condensable gases PETROLEUM SCIENCE AND TECHNOLOGY Canbolat, S., Akin, S., Kovscek, A. R. 2006; 24 (1): 69-92
  • Laboratory Investigation of the Effect of Solvent Injection on In-Situ Combustion, SPE 99752 Proceedings of the SPE Symposium on Improved Oil Recovery, Tulsa, OK Apr 22-26, 2006 Cristofari, J., Castanier, L. M., Kovscek, A. R. 2006
  • Overview -Heavy Oil Journal of Petroleum Technology Kovscek, A. R. 2006; 58 (4): 97
  • The Role of Oil Chemistry on Cold Production of Heavy Oils SPE Annual Technical Conference and Exhibition Tang, G., Temizel, C., Kovscek, A. R. 2006
  • Laboratory Investigation of the Effect of Solvent Injection on In-Situ Combustion SPE/DOE Symposium on Improved Oil Recovery Cristofari, J., Castanier, L., Kovscek, A. 2006
  • Petroleum Coke The World Book Encyclopedia Kovscek, A. R. 2006; 15: X350
  • Interpretation of Heat Distribution, Remaining Oil Saturation, and Steamflood Potential of Block Wa38, Liaohe Field, SPE Annual Technical Conference and Exhibition Gao, Y., Castanier, L. M., Kovscek, A. R. 2006
  • Time-Dependent Shape Factors for Partially and Completely Immersed Fractures Journal of Petroleum Science and Engineering Rangel-German, E. R., Kovscek, A. R. 2006; 54: 149-163
  • Mechanism of formation damage at elevated temperature JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME Schembre, J. M., Kovscek, A. R. 2005; 127 (3): 171-180

    View details for DOI 10.1115/1.1924398

    View details for Web of Science ID 000231636600002

  • Geologic storage of carbon dioxide and enhanced oil recovery. I. Uncertainty quantification employing a streamline based proxy for reservoir flow simulation ENERGY CONVERSION AND MANAGEMENT Kovscek, A. R., Wang, Y. 2005; 46 (11-12): 1920-1940
  • Geologic storage of carbon dioxide and enhanced oil recovery. II. Cooptimization of storage and recovery ENERGY CONVERSION AND MANAGEMENT Kovscek, A. R., Cakici, M. D. 2005; 46 (11-12): 1941-1956
  • Displacement front stability of steam injection into high porosity diatomite rock JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING Hoffman, B. T., Kovscek, A. R. 2005; 46 (4): 253-266
  • A microvisual study of solution-gas-drive mechanisms in viscous oils JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING George, D. S., Hayat, O., Kovscek, A. R. 2005; 46 (1-2): 101-119
  • Increasing CO2 storage in oil recovery ENERGY CONVERSION AND MANAGEMENT Jessen, K., Kovscek, A. R., Orr, F. M. 2005; 46 (2): 293-311
  • Laboratory and Simulation Investigation of Enhanced Coalbed Methane Recovery by Gas Injection SPE Annual Technical Conference and Exhibition Tang, G., Jessen, K., Kovscek, A. R. 2005
  • A Laboratory Investigation of Temperature Induced Sand Consolidation SPE Western Regional Meeting Ross, C. M., Rangel-German, E. R., Castanier, L. M., Kovscek, A. R. 2005
  • Overview-Heavy Oil Journal of Petroleum Technology Kovscek, A. R. 2005; 57 (6): 62
  • Matrix Fracture Shape Factors and Multiphase Flow Properties of Fractured Porous Media SPE Latin America and Caribbean Petroleum Engineering Conference Rangel-German, E. R., Kovscek, A. R. 2005
  • Improved In-Situ Combustion Performance with Metallic Salt Additives SPE Western Regional Meeting He, B., Chen, Q., Castanier, L. M., Kovscek, A. R. 2005
  • Effect of Temperature on Relative Permeability for Heavy-Oil Diatomite Reservoirs SPE Western Regional Meeting Schembre, J. M., Tang, G., Kovscek, A. R. 2005
  • A Pore Network Modeling Approach to Predict Petrophysical Propoerties of Diatomaceous Reservoir Rock Proceedings of the SPE Western Regional Meeting Jia, L., Ross, C. M., Kovscek, A. R. 2005: 2005
  • A direct sequential simulation approach to streamline-based history matching 7th International Geostatistics Congress Caers, J., Gross, H., Kovscek, A. R. SPRINGER. 2005: 1077–1086
  • Electrical-heating-assisted recovery for heavy oil JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING Rangel-German, E. R., Schembre, J., Sandberg, C., Kovscek, A. R. 2004; 45 (3-4): 213-231
  • Noncondensable gas steam-assisted gravity drainage JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING Canbolat, S., Akin, S., Kovscek, A. R. 2004; 45 (1-2): 83-96
  • An experimental investigation of the effect of temperature on recovery of heavy oil from diatomite SPE JOURNAL Tang, G. Q., Kovscek, A. R. 2004; 9 (2): 163-?
  • Experiments and analysis of heavy-oil solution-gas drive 2001 SPE Annual Technical Conference and Exhibition Sahni, A., Gadelle, F., Kumar, M., Tomutsa, L., Kovscek, A. R. SOC PETROLEUM ENG. 2004: 217–29
  • Efficiency and oil recovery mechanisms of steam injection into low permeability, hydraulically fractured reservoirs PETROLEUM SCIENCE AND TECHNOLOGY Hoffman, B. T., Kovscek, A. R. 2004; 22 (5-6): 537-564
  • Measurement and Theory of Gas Trapping in Porous Media During Steady-State Foam Flow SPE Annual Technical Conference and Exhibition, Tang, G., Kovscek, A. R. 2004
  • Heavy-Oil Solution Gas Drive in Consolidated and Unconsolidated Rock SPE International Thermal Operations and Heavy Oil Symposium and Western Regional Meeting Tang, G., Sahni, A., Gadelle, F., Kumar, M., Kovscek, A. R. 2004
  • Experimental Investigation and High Resolution Simulator of In-Situ Combustion: 1. Simulator Design and Improved Combustion With Metallic Additives SPE International Thermal Operations and Heavy Oil Symposium and Western Regional Meeting Gerritsen, M., Kovscek, A. R., Castanier, L., Nilsson, J., Younis , R., He, B. 2004
  • Thermally Induced Fines Migration: Its Relationship to Wettability and Formation Damage, SPE 86937 SPE International Thermal Operations and Heavy Oil Symposium and Western Regional Meeting Schembre, J. M., Kovscek, A. R. 2004
  • Steamdrive Stability in High Porosity Rock SPE International Thermal Operations and Heavy Oil Symposium and Western Regional Meeting Hoffman, B. T., , B. T., Kovscek, A. R., A. R. 2004
  • Code Intercomparison Builds Confidence in Numerical Simulation Models for Geologic Disposal of CO2 Energy Pruess, K., GarcÌa, J., Kovscek, A. R., C. Oldenburg, .J. Rutqvist, Steefel, C., Xu, T. 2004; 29: 1431-1444
  • Experimental Determination of Time-Dependent Matrix-Fracture Shape Factors for Different Geometries and Fracture Filling Regimes, SPE 92131 SPE International Petroleum Conference Chaobal, A., , A., Rangel-German, E. R., , E. R., Kovscek, A. R., A. R. 2004
  • Streamline-Based History Matching Using Geostatistical Constraints: Application to a Giant Mature Carbonate Reservoir SPE Annual Technical Conference and Exhibition Gross, H., Thiele, M. R., Alexa, M. J., Caers, J. K., Kovscek, A. R. 2004
  • Microvisual Analysis of Matrix-Fracture Interaction SPE International Petroleum Conference in Mexico Rangel-German, E. R., Kovscek, A. R. 2004
  • Analytical theory of coalbed methane recovery by gas injection 2002 SPE/DOE Improved Oil Recovery Symposium Zhu, J. C., Jessen, K., Kovscek, A. R., Orr, F. M. SOC PETROLEUM ENG. 2003: 371–79
  • Special issue - Honoring Professor W.E. Brigham - Preface JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING Kovscek, A. R. 2003; 39 (1-2): 1-3
  • A technique for measuring two-phase relative permeability in porous media via X-ray CT measurements Brigham Symposium Schembre, J. M., Kovscek, A. R. ELSEVIER SCIENCE BV. 2003: 159–74
  • Foam mobility in heterogeneous porous media - (II: Experimental observations) TRANSPORT IN POROUS MEDIA Kovscek, A. R., Bertin, H. J. 2003; 52 (1): 37-49
  • Foam mobility in heterogeneous porous media - (I: Scaling concepts) TRANSPORT IN POROUS MEDIA Kovscek, A. R., Bertin, H. J. 2003; 52 (1): 17-35
  • A mechanistic modeling and experimental study of solution gas drive TRANSPORT IN POROUS MEDIA Arora, P., Kovscek, A. R. 2003; 51 (3): 237-265
  • Integrating production history into reservoir models using streamline-based time-of-flight ranking PETROLEUM GEOSCIENCE Wang, Y., Kovscek, A. R. 2003; 9 (2): 163-174
  • Pressure-driven capillary snap-off of gas bubbles at low wetting-liquid content COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS Kovscek, A. R., RADKE, C. J. 2003; 212 (2-3): 99-108
  • Light-Oil Steamdrive in Fractured Low Permeability Reservoirs SPE Western Region/AAPG Pacific Section Joint Meeting Hoffman, B. T., Kovscek, A. R. 2003
  • Computed Tomography in Petroleum Engineering Research Geological Society, London, Special Publications Akin, S., Kovscek, A. R. 2003; 215: 23-28
  • Time-Dependent Matrix-Fracture Shape Factors for Partially and Completely Immersed Fractures, SPE 84411 Proceedings of the SPE Annual Technical Conference and Exhibition, Denver, CO Oct. 5-8 Rangel-German, E. R., Kovscek, A. R. 2003
  • Analytical Solutions for Coal-Bed Methane Displacement by Gas Injection SPE Journal Zhu, J., Jessen, K., Kovscek, A. R., Orr Jr., F. M. 2003; 8 (4)
  • ime Dependent Shape Factors for Uniform and Non-Uniform Pressure Boundary Conditions Geothermal Resources Council Annual Meeting Rangel-German, E. R., Kovscek, A. R., Akin, S. 2003
  • Computed Tomography in Petroleum Engineering Research Applications of X-ray Computed Tomography in the Geosciences Akin, S., Kovscek, A. R. edited by Mees, F., Swennen, R., Van Geet, M., Jacobs, P. Geological Society Publications. 2003
  • An Investigation of the Effect of Oil Composition on Heavy Oil Solution Gas Drive SPE Annual Technical Conference and Exhibition Tang, G., Leung, Y., Castanier, L. M., Sahni, A., Gadelle, F., Kumar, M., Kovscek, A. R. 2003: 2003
  • Experimental and analytical study of multidimensional imbibition in fractured porous media JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING Rangel-German, E. R., Kovscek, A. R. 2002; 36 (1-2): 45-60
  • A geostatistical approach to streamline-based history matching SPE JOURNAL Caers, J., Krishnan, S., Wang, Y. D., Kovscek, A. R. 2002; 7 (3): 250-266
  • Heavy-oil solution gas drive: a laboratory study JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING Akin, S., Kovscek, A. R. 2002; 35 (1-2): 33-48
  • Scaling of counter-current imbibition processes in low-permeability porous media 6th International Symposium on Reservoir Wettability and Its Effect on Oil Recovery Zhou, D., Jia, L., Kamath, J., Kovscek, A. R. ELSEVIER SCIENCE BV. 2002: 61–74
  • Screening criteria for CO2 storage in oil reservoirs PETROLEUM SCIENCE AND TECHNOLOGY Kovscek, A. R. 2002; 20 (7-8): 841-866
  • Analytical Solutions for Coal-Bed Methane Displacement by Gas Injection, SPE 75255 Proceedings of the SPE/DOE Thirteenth Symposium on Improved Oil Recovery, Tulsa, OK April 13-17 Zhu, J., Jessen, K., Kovscek, A. R., Orr, Jr., F. M. 2002
  • Petroleum Recovery Encyclopedia of Petroleum Science and Engineering Kovscek, A. R. edited by Speight, J. G. Marcel Dekker, New York. 2002
  • Wettability Alteration of Diatomite Induced by Hot-Fluid Injection SPE Annual Technical Conference and Exhibition Tang, G., Kovscek, A. R. 2002
  • Polymer Augmented Waterflooding Encyclopedia of Petroleum Science and Engineering Kovscek, A. R. edited by Speight, J. G. Marcel Dekker, New York. 2002
  • A Study of Steam-Assisted Gravity Drainage Performance in the Presence of Noncondensable Gases SPE/DOE Improved Oil Recovery Symposium Serhat, C., Serhat, A., Kovscek, A. 2002

    View details for DOI 10.2118/75130-ms

  • Immiscible Carbon Dioxide Displacement Encyclopedia of Petroleum Science and Engineering Kovscek, A. R. edited by Speight, J. G. Marcel Dekker, New York. 2002
  • Mechanistic Modeling of Solution-Gas Drive in Viscous Oils Journal of Petroleum Technology Arora, P., Kovscek, A. R. 2002; 53 (6): 48-49
  • Experimental Study of Heavy Oil Production from Diatomite Core at Elevated Temperatures SPE/DOE Thirteenth Symposium on Improved Oil Recovery Tang, G. Q., Kovscek, A. R. 2002
  • Estimation of Foam Mobility in Heterogeneous Porous Media SPE/DOE Thirteenth Symposium on Improved Oil Recovery Kovscek, A. R., , A. R., Bertin, H. J., H. J. 2002
  • Pore Microstructure and Fluid Distribution in a Diatomaceous Reservoir SPE/DOE Thirteenth Symposium on Improved Oil Recovery, Ross, C. M., Kovscek, A. R. 2002
  • A Streamline Approach for Ranking Reservoir Models that Incorporates Production History SPE Annual Technical Conference and Exhibition Wang, Y., Kovscek, A. R. 2002
  • Surfactant concentration and end effects on foam flow in porous media TRANSPORT IN POROUS MEDIA Apaydin, O. G., Kovscek, A. R. 2001; 43 (3): 511-536
  • A numerical analysis of the single-well steam assisted gravity drainage process (SW-SAGD) PETROLEUM SCIENCE AND TECHNOLOGY Elliot, K. T., Kovscek, A. R. 2001; 19 (7-8): 733-760
  • An Investigation of Counter-Current Imbibition Processes in Diatomite SPE Western Regional Meeting Zhou, D., Jia, L., Kamath, J., Kovscek, A. R. 2001
  • Increasing CO2 Storage in Oil Recovery First National Conference on Carbon Sequestration Jessen, K., Sam-Olibale, L. C., Kovscek, A. R., Orr, F. M. 2001
  • Water Infiltration in Fractured Systems: Experiments and Analytical Model SPE Annual Technical Conference and Exhibition Rangel-German, E. R., Kovscek, A. R. 2001
  • Direct Measurement of Dynamic Relative Permeability from CT-Monitored Spontaneous Imbibition Experiments SPE Annual Technical Conference and Exhibition Schembre, J. M., Kovscek, A. R. 2001
  • Countercurrent Imbibition Processes in Diatomite Journal of Petroleum Technology Zhou, D., Jia, L., Kamath, J., Kovscek, A. R. 2001; 53: 44
  • Mechanistic Modeling of Solution Gas Drive in Viscous Oils SPE International Thermal Operations and Heavy Oil Symposium Arora, P., Kovscek, A. R. 2001
  • Porosity and permeability evolution accompanying hot fluid injection into diatomite PETROLEUM SCIENCE AND TECHNOLOGY Diabira, I., Castanier, L. M., Kovscek, A. R. 2001; 19 (9-10): 1167-1185
  • Streamline approach for history matching production data SPE JOURNAL Wang, Y., Kovscek, A. R. 2000; 5 (4): 353-362
  • Spontaneous imbibition characteristics of diatomite JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING Akin, S., Schembre, J. M., Bhat, S. K., Kovscek, A. R. 2000; 25 (3-4): 149-165
  • Matrix-Fracture Interactions in Single Matrix Blocks, Twenty-Fifth Workshop on Geothermal Reservoir Engineering Rangel-German, E. R., Kovscek, A. R. 2000
  • Transient Foam Flow in Homogeneous Porous Media: Surfactant Concentration and End Effects SPE/DOE Improved Oil Recovery Symposium Apaydin, O. G., Kovscek , A. R. 2000
  • An Experimental Investigation of Permeability and Porosity Alteration in Diatomite During Hot Fluid Injection SPE Western Regional Meeting Kovscek, A. R., Diabira, I., Castanier, L. M. 2000
  • A Streamline Approach for History Matching Production Data SPE 59370 SPE/DOE Improved Oil Recovery Symposium, Tulsa, OK April 3-5 Wang, Y., Kovscek, A. R. 2000
  • Foam Flow in Heterogeneous Porous Media: Effect of Cross Flow SPE JOURNAL Bertin, H. J., Apaydin, O. G., Castanier, L. M., Kovscek, A. R. 1999; 4 (2): 75-82
  • Statistical network theory of silica deposition and dissolution in diatomite IN SITU Bhat, S. K., Kovscek, A. R. 1999; 23 (1): 21-53
  • A Numerical Analysis of the Single-Well Steam Assisted Gravity Drainage 20th Annual International Energy Agency Workshop and Symposium Elliot, K. E., Kovscek, A. R. 1999
  • Simulation of Early-Time Response of Single- Well Steam Assisted Gravity Drainage SPE Western Regional Meeting Elliot, K. E., Kovscek, A. R. 1999
  • Foam flow in heterogeneous porous media: Effect of crossflow SPE/DOE Improved Oil Recovery Symposium Bertin, H. J., Apaydin, O. G., Castanier, L. M., Kovscek, A. R. 1999: 75–82
  • Imbibition Studies in Low-Permeability Porous Media SPE Western Regional Meeting Akin, S., Kovscek, A. R. 1999
  • Effect of mobility ratio on pattern behavior of a homogeneous porous medium IN SITU Wang, Y., Kovscek, A. R., Brigham, W. E. 1999; 23 (1): 1-20
  • Permeability modification of diatomite during hot-fluid injection Journal of Petroleum Technology Bhat, S. K., Kovscek, A. R. 1998; 50: 98-100
  • Spontaneous water imbibition into diatomite SPE Western Regional Meeting Schembre, J. M., Akin, S., Castanier, L. M., Kovscek, A. R. 1998
  • Effect of mobility ratio on areal sweep efficiency and pattern flood behavior 19th Annual International Energy Agency Workshop and Symposium Wang, Y., Kovscek, A. R., Brigham, W. E. 1998
  • Foam flow in heterogeneous porous media: Effect of crossflow. SPE 39678 SPE/DOE Improved Oil Recovery Symposium, Tulsa Bertin, H. J., Apaydin, O. G., Castanier, L. M., Kovscek, A. R. 1998
  • Reservoir simulation of foam displacement processes 7th UNITAR International Conference on Heavy Crude and Tar Sands Kovscek, A. R. 1998
  • Permeability modification of diatomite during hot fluid injection SPE Western Regional Meeting Bhat, S. K., Kovscek, A. R. 1998
  • Evaluation of rock/fracture interactions during steam injection through vertical hydraulic fractures 1995 SPE Western Regional Meeting Kovscek, A. R., Johnston, R. M., Patzek, T. W. SOC PETROLEUM ENG. 1997: 100–105
  • Gas bubble snap-off under pressure-driven flow in constricted noncircular capillaries COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS Kovscek, A. R., RADKE, C. J. 1996; 117 (1-2): 55-76
  • Interpretation of hydrofracture geometry during steam injection using temperature transients .2. Asymmetric hydrofractures IN SITU Kovscek, A. R., Johnston, R. M., Patzek, T. W. 1996; 20 (3): 289-309
  • Interpretation of hydrofracture geometry during steam injection using temperature transients .1. Model formulation and verification IN SITU Kovscek, A. R., Johnston, R. M., Patzek, T. W. 1996; 20 (3): 251-288
  • Dividing oil fields into regions with similar characteristic behavior using neural network and fuzzy logic approaches 1996 Biennial Conference of the North-American-Fuzzy-Information-Processing-Society Nikravesh, M., Kovscek, A. R., Patzek, T. W. I E E E. 1996: 164–169
  • A MECHANISTIC POPULATION BALANCE MODEL FOR TRANSIENT AND STEADY-STATE FOAM FLOW IN BOISE SANDSTONE CHEMICAL ENGINEERING SCIENCE Kovscek, A. R., Patzek, T. W., RADKE, C. J. 1995; 50 (23): 3783-3799
  • FOAM FLOW-THROUGH A TRANSPARENT ROUGH-WALLED ROCK FRACTURE JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING Kovscek, A. R., Tretheway, D. C., Persoff, P., RADKE, C. J. 1995; 13 (2): 75-86
  • FUNDAMENTALS OF FOAM TRANSPORT IN POROUS-MEDIA FOAMS: FUNDAMENTALS AND APPLICATIONS IN THE PETROLEUM INDUSTRY Kovscek, A. R., RADKE, C. J. 1994; 242: 115-163
  • A PORE-LEVEL SCENARIO FOR THE DEVELOPMENT OF MIXED WETTABILITY IN OIL-RESERVOIRS AICHE JOURNAL Kovscek, A. R., Wong, H., RADKE, C. J. 1993; 39 (6): 1072-1085