Otto N. Miller Professor in the School of Earth, Energy & Environmental Sciences, Emeritus
Group
I was born in Pakistan and came to the U.S. in 1952 to study engineering. Since then I have spent most of my life in Canada and the U.S.A. working both in academia and industry. I have also worked in Pakistan for the Karachi Gas Company. I have also founded the Computer Modelling Group (CMG) and co-founded Neotechnology Consultants. While I am no longer formally associated with these companies, they have been highly successful in their respective fields.
Research The overall goal of my research is the development of robust and reliable models for predicting performance of hydrocarbon reservoirs (including shale oil and gas) and CO2 sequestration operations. Over the years I have been involved with the development of four different industrial consortia dealing with different aspects of this problem. The first was on reservoir simulation (SUPRI-B), the second on data integration (SCRF), the third on advanced wells (SUPRI-HW), and the most recent one on Smart Fields (SFC). Underlying my research is the desire to understand mechanisms involved during the flow of complex mixtures in porous rocks and in pipes, and efficient modeling of these processes on computers. While I am no longer directly involved with SCRF and we have merged SUPRI-HW with other programs, I co-direct the other two consortia. All are highly successful and have led to a number of developments and innovations that have found important applications in industry.
Teaching While I have been extensively involved in teaching in the past, I am slowly winding down my activities in this area. I still give lectures in some courses but I do not teach any full courses. I do participate in a summer short course on reservoir simulation that we offer each year for industry people. My main current activity at Stanford is research.
Professional Activities In 2008 I was awarded the degree of Doctor of Laws (Honoris Causa) from the University of Calgary for my contribution to that university before moving to Stanford. In 2006 I received the Lifetime Achievement Award of the Petroleum Society of Canada and in 2005 I received the Blaise Pascal Medal in Earth Sciences of the European Academy of Sciences. In previous years I have received numerous national and international awards. I serve on the Advisory Board of several universities in Pakistan and have been particularly active in developing a new School of Science and Engineering at LUMS in Lahore. This school admitted its first undergraduate class of about 160 outstanding freshmen in 2008. I am a member of the national Academy of Engineering.
Waterflood management using two-stage optimization with streamline simulationCOMPUTATIONAL GEOSCIENCESWen, T., Thiele, M. R., Ciaurri, D. E., Aziz, K., Ye, Y.2014; 18 (3-4): 483-504
Adjoint formulation and constraint handling for gradient-based optimization of compositional reservoir flowCOMPUTATIONAL GEOSCIENCESKourounis, D., Durlofsky, L. J., Jansen, J. D., Aziz, K.2014; 18 (2): 117-137
Approximate dynamic programming for optimizing oil productionReinforcement Learning and Approximate Dynamic Programming for Feedback ControlZheng, W., Durlofsky, L. J., Van Roy, B., Aziz, K, K.edited by Lewis, F. L., Liu, D.Wiley-IEEE Press.2012
Then and Now Dewpoint of Natural GasesJOURNAL OF CANADIAN PETROLEUM TECHNOLOGYAziz, K.2011; 50 (1): 10-11
A Semianalytical Thermal Multiphase Wellbore-Flow Model for Use in Reservoir SimulationSPE JOURNALLivescu, S., Durlofsky, L. J., AZIZ, K.2010; 15 (3): 794-804
Adaptively Localized Continuation-Newton Method Nonlinear Solvers That Converge All the TimeSPE JOURNALYOUNIS, R. M., Tchelepi, H. A., AZIZ, K.2010; 15 (2): 526-544
A fully-coupled thermal multiphase wellbore flow model for use in reservoir simulationLivescu, S., Durlofsky, L. J., AZIZ, K., GINESTRA, J. C.ELSEVIER SCIENCE BV.2010: 138-146
Modeling of Multisegmented Thermal Wells in Reservoir SimulationSPE EUROPEC/EAGE Annual Conference and Exhibition Semenova, A., Livescu, S., Durlofsky, L. J., Aziz, K.2010
Optimization of Multilateral Well Design and Location in a Real Field Using a Continuous Genetic AlgorithmSPE/DGS Annual Technical Symposium and ExhibitionBukhamsin, A. Y., Farshi, M. M., Aziz, K.2010
Development and application of a fully-coupled thermal compositional wellbore flow model, SPE paper 121306SPE Western Regional Meeting, San Jose, CA, March 24-26Livescu, S., Aziz, K., Durlofsky, L. J.2009
Production optimization with adjoint models under nonlinear control-state path inequality constraintsSarma, P., Chen, W. H., Durlofsky, L. J., Aziz, K.SOC PETROLEUM ENG.2008: 326-339
Computational techniques for closed-loop reservoir modeling with application to a realistic reservoirPETROLEUM SCIENCE AND TECHNOLOGYSarma, P., Durlofsky, L. J., AZIZ, K.2008; 26 (10-11): 1120-1140
Application of statistical proxies to speed up field development optimization proceduresInternational Petroleum Exhibition and ConferenceOnwunalu, J., Litvak, M., Durlofsky, L. J., Aziz, K.2008
Numerical techniques used for predicting subsidence due to gas extraction in the North Adriatic SeaPETROLEUM SCIENCE AND TECHNOLOGYSettari, A., Walters, D. A., Stright, D. H., AZIZ, K.2008; 26 (10-11): 1205-1223
Characterization of the Pliocene gas reservoir aquifers for predicting subsidence on the Ravenna coastPETROLEUM SCIENCE AND TECHNOLOGYStright, D. H., Settari, A., Walters, D. A., AZIZ, K.2008; 26 (10-11): 1267-1281
Application of a new fully-coupled thermal multiphase wellbore flow modelSPE Improved Oil Recovery SymposiumLivescu, S., Durlofsky, L. J., Aziz, K., Ginestra, J. C.2008
Upscaling and discretization errors in reservoir simulationPETROLEUM SCIENCE AND TECHNOLOGYSablok, R., AZIZ, K.2008; 26 (10-11): 1161-1186
Kernel principal component analysis for efficient, differentiable parameterization of multipoint geostatisticsMATHEMATICAL GEOSCIENCESSarma, P., Durlofsky, L. J., Aziz, K.2008; 40 (1): 3-32
A New Approach to Automatic History Matching using Kernel PCASPE Reservoir Simulation Symposium Sarma, P., Durlofsky, L. J., Aziz, K., Chen, W.2007
Parallel Automatically Differentiable Data-types for Next Generation Simulator DevelopmentSPE Reservoir Simulation SymposiumYounis, Y. M., Aziz, K.2007
Optimization of nonconventional wells under uncertainty using statistical proxiesCOMPUTATIONAL GEOSCIENCESArtus, V., Durlofsky, L. J., Onwunalu, J., Aziz, K.2006; 10 (4): 389-404
New transfer functions for simulation of naturally fractured reservoirs with dual-porosity modelsSarma, P., Aziz, K.SOC PETROLEUM ENG.2006: 328-340
Closed-loop reservoir management - PrefaceCOMPUTATIONAL GEOSCIENCESJansen, J., Durlofsky, L., Aziz, K., van Kruijsdijk, C.2006; 10 (1): 1-2
Efficient real-time reservoir management using adjoint-based optimal control and model updatingSarma, P., Durlofsky, L. J., Aziz, K., Chen, W. H.SPRINGER.2006: 3-36
Drift-flux parameters for three-phase steady-state flow in wellboresShi, H., Holmes, J. A., Diaz, L. R., Durlofsky, L. J., AZIZ, K.SOC PETROLEUM ENG.2005: 130-137
Drift-flux modeling of two-phase flow in wellboresShi, H., Holmes, J. A., Durlofsky, L. J., AZIZ, K., Diaz, L. R., Alkaya, B., Oddie, G.SOC PETROLEUM ENG.2005: 24-33
Efficient Closed-loop Production Optimization Under Uncertainty14th Europec Biennial ConferenceSarma, P., Durlofsky, L. ., Aziz , K.2005
Upscaling and Discretization Errors in Reservoir SimulationSPE Reservoir Simulation SymposiumSablok, R., Aziz, K.2005
Implementation of Adjoint Solution for Optimal Control of Smart WellsSPE Reservoir Simulation SymposiumSarma, P., Aziz, K., Durlofsky, L. J.2005
Advances in Reservoir Simulation8th International Forum on Reservoir SimulationTchelepi, H. A., Aziz, K.2005
Numerical techniques used for predicting subsidence due to gas extraction in the Northern AdriaticLAND SUBSIDENCE, PROCEEDINGSSettari, A. (., Walters, D. A., Stright, D. H., Aziz, K.2005: 101-119
Characterization of the Pliocene gas reservoir aquifers for predicting subsidence on the Ravenna CoastLAND SUBSIDENCE, PROCEEDINGSStright, D. H., Settari, A., Walters, D. A., Aziz, K.2005: 19-33
Decision analysis under uncertainty for smart well deployment (vol 43, pg 183, 2004)JOURNAL OF PETROLEUM SCIENCE AND ENGINEERINGYeten, B., Brouwer, D. R., Durlofsky, L. J., AZIZ, K.2004; 44 (1-2): 173-?
Decision analysis under uncertainty for smart well deploymentYeten, B., Brouwer, D. R., Durlofsky, L. J., AZIZ, K.ELSEVIER SCIENCE BV.2004: 183-199
An efficient discrete-fracture model applicable for general-purpose reservoir simulatorsKarimi-Fard, M., Durlofsky, L. J., Aziz, K.SOC PETROLEUM ENG.2004: 227-236
Modeling and Optimization of Oil and Gas Producing WellsGubkin WorkshopAziz and , K., Durlofsky , L.2004
New Transfer Functions for Simulation of Naturally Fractured Reservoirs with Dual Porosity ModelsSPE Annual Technical Conference and ExhibitionSarma, P., Aziz, K.2004
Drift-flux Parameters for Three-phase Steady-state Flow in WellboresSPE Annual Technical Conference and ExhibitionShi, H., Holmes, J. A., Diaz, L. R., Durlofsky, L. J., Aziz, K.2004
Optimization of advanced well type and performance9th European Conference on the Mathematics of Oil RecoveryAitokhuehi, I., Durlofsky, L. J., Artus, V., Yeten, B., Aziz, K.2004
Optimization of nonconventional well type, location, and trajectoryYeten, B., Durlofsky, L. J., Aziz, K.SOC PETROLEUM ENG.2003: 200-210
Efficient modeling of nonconventional wells with downhole inflow control devicesValvatne, P. H., Serve, J., Durlofsky, L. J., AZIZ, K.ELSEVIER SCIENCE BV.2003: 99-116
Experimental study of two and three phase flows in large diameter inclined pipesINTERNATIONAL JOURNAL OF MULTIPHASE FLOWOddie, G., Shi, H., Durlofsky, L. J., AZIZ, K., Pfeffer, B., Holmes, J. A.2003; 29 (4): 527-558
Calculation of well index for nonconventional wells on arbitrary gridsCOMPUTATIONAL GEOSCIENCESWolfsteiner, C., Durlofsky, L. J., AZIZ, K.2003; 7 (1): 61-82
Drift-Flux Modeling of Multiphase Flow in WellboresSPE Annual Technical Conference and ExhibitionShi, H., Alkaya, B., Holmes, J. A., Durlofsky, L. J., Aziz, K., Oddie, G.2003
Optimization of Intelligent Well ControlWorld OilYeten, B., Durlofsky, L. J., Aziz, K.2003; Optimization of Intelligent Well Control (35-40)
Stabilized Finite Element Methods for Coupled Geomechanics - Reser Flow SimulationsSPE Reservoir Simulation SymposiumWan, J., Durlofsky, L. J., Hughes, T. R., Aziz, K.2003
An Efficient Discrete Fracture Model Applicable for General Purpose Reservoir SimulatorsSPE Reservoir Simulation SymposiumKarimi-Fard, M., Durlofsky, L. J., Aziz, K.2003
Semi-analytical well model of horizontal wells with multiple hydraulic fracturesWan, J., Aziz, K.SOC PETROLEUM ENG.2002: 437-445
A mechanistic model for gas-liquid flow in horizontal wells with radial influx or outfluxPETROLEUM SCIENCE AND TECHNOLOGYOuyang, L. B., AZIZ, K.2002; 20 (1-2): 191-222
Performance of IMPSAT and IMPSAT-AIM Models in Compositional SimulationSPE Annual Technical Conference and ExhibitionCao, H., Aziz, K.2002
Optimization of Production form Mature Fields17th World Petroleum CongressWang, P., Litvak, M. L., Aziz, K.2002
Optimization of Production Operations in Petroleum FieldsSPE Annual Technical Conference and ExhibitionYeten, B., Durlofsky, L. J., Aziz, K.2002
Solution nonuniqueness for separated gas-liquid flow in pipes and wells. I. OccurrencePETROLEUM SCIENCE AND TECHNOLOGYOuyang, L. B., AZIZ, K.2002; 20 (1-2): 143-171
Solution nonuniqueness for separated gas-liquid flow in pipes and wells. II. AnalysisPETROLEUM SCIENCE AND TECHNOLOGYOuyang, L. B., AZIZ, K.2002; 20 (1-2): 173-190
Transient gas-liquid two-phase flow in pipes with radial influx or effluxJOURNAL OF PETROLEUM SCIENCE AND ENGINEERINGOuyang, L. B., AZIZ, K.2001; 30 (3-4): 167-179
A general single-phase wellbore/reservoir coupling model for multilateral wellsOuyang, L. B., AZIZ, K.SOC PETROLEUM ENG.2001: 327-335
Productivity of horizontal and multilateral wellsPETROLEUM SCIENCE AND TECHNOLOGYAZIZ, K., Ouyang, L. B.2001; 19 (7-8): 1009-1025
Semi-Analytical Modeling of the Performance of Intelligent Well CompletionsSPE Reservoir Simulation SymposiumValvatne, P. H., Durlofsky, L. J., Aziz, K.2001
Modeling Conventional and Non-Conventional WellsSixth International Forum on Reservoir SimulationWolfsteiner, C., Aziz, K., Durlofsky, L. J.2001
Discussion of effects of grid systems on predicting horizontal-well productivity - ReplySPE JOURNALAZIZ, K., Wang, J.2000; 5 (4): 492-492
Effects of grid systems on predicting horizontal-well productivityWan, J., Penmatcha, V. R., Arbabi, S., Aziz, K.SOC PETROLEUM ENG.2000: 309-314
A homogeneous model for gas-liquid flow in horizontal wellsJOURNAL OF PETROLEUM SCIENCE AND ENGINEERINGOuyang, L. B., AZIZ, K.2000; 27 (3-4): 119-128
A mechanistic model for multiphase flow in pipesPetalas, N., AZIZ, K.CANADIAN INST MINING METALLURGY PETROLEUM.2000: 43-55
Approximate model for productivity of nonconventional wells in heterogeneous reservoirsWolfsteiner, C., Durlofsky, L. J., AZIZ, K.SOC PETROLEUM ENG.2000: 218-226
Efficient Estimation of the Effects of Wellbore Hydraulics and Reservoir Heterogeneity on the Productivity of Non-Conventional WellsSPE Asia Pacific Conference on Integrated ModellinWolfsteiner, C., Durlofsky, L. J., Aziz, K.2000
Approximate Finite Difference Modeling of the Performance of Horizontal Wells in Heterogeneous ReservoirsSPE Western Regional MeetingYeten, B., Wolfsteiner, C., Durlofsky, L. J., Aziz, K.2000
Productivity and Injectivity of Horizontal Wells - Final Report for the Period March 10, 1993 to May 30, 1998DOE ContractAziz, K.U.S. Dept. of Energy.2000; March (DE-FG22-93BC14862)
Why is it so difficult to predict the performance of horizontal wells?JOURNAL OF CANADIAN PETROLEUM TECHNOLOGYAZIZ, K., Arbabi, S., Deutsch, C. V.1999; 38 (10): 37-45
Comprehensive Reservoir/Wellbore Model for Horizontal WellsSPE JOURNALPenmatcha, V. R., Aziz, K.1999; 4 (3): 224-234
Effects of Pressure Drop in Horizontal Wells and Optimum Well LengthSPE JOURNALPenmatcha, V. R., Arbabi, S., Aziz, K.1999; 4 (3): 215-223
Evaluation of Dynamic Pseudofunctions for Reservoir SimulationSPE JOURNALGuzman, R. E., Giordano, D., FAYERS, F. J., Godi, A., Aziz, K.1999; 4 (1): 37-46
Multiple Hydraulic Fractures in Horizontal WellsSPE Western Regional ConferenceWan, J., Aziz, K.1999
A Comprehensive Reservoir-Wellbore Model for Horizontal WellsSPE JournalPenmatcha, V. R., Aziz, K.1999; 4 (3): 224-234
Evaluation of PseudofunctionsSPE Western Regional ConferenceCao, H., Aziz, K.1999
Modular Mesh Generation With Embedded Streamline Potential GridsSPE Reservoir Simulation SymposiumEdwards, M. G., Li, B., Aziz, K.1999
A Preconditioned Adaptive Implicit Method for Reservoirs with Surface FacilitiesSPE Reservoir Simulation SymposiumByer, T. J., Edwards, M. G., Aziz, K.1999
A Mechanistic Model for Gas-Liquid Flow in Pipes with Radial Influx or OutfluxSPE Annual Technical Conference and ExhibitionOuyang, L., Aziz, K.1999
Effects of Pressure Drop in Horizontal Wells and Optimum Well LengthSPE JournalPenmatcha, V. R., Arbabi, S., Aziz, K.1999; 4 (3): 215-223
Evaluation of Dynamic Pseudo Functions for Reservoir SimulationSPE JournalGuzman, R. E., Giordano, D., Fayers, F. J., Godi, A., Aziz, K.1999; 4 (1): 37-46
A Single-Phase Wellbore-Flow Model for Horizontal, Vertical, and Slanted WellsSPE JournalOuyang, L., Arbabi, S., Aziz, K.1998; 6: 124-133
Practical procedure to predict cresting behavior in horizontal wellsSPE JournalSouza, A. S., Arbabi, S., Aziz, K.1998; 3 (4): 382-392
Productivity of horizontal and multilateral wells10th International Conference on Horizontal Well Technology and ApplicationsAziz, K., Ouyang, L.1998
Preconditioning methods for coupled reservoir and facility models6th European Conference on the Mathematics of Oil Recovery (ECMOR)Byer, T. J., Edwards, M. G., Aziz, K.1998
General wellbore flow model for horizontal, vertical, and slanted well completions, SPE 36608SPE JournalOuyang, L. B., Arbabi, S., Aziz, K.1998: 124-133
Quasi K-orthogonal streamline grids: gridding and discretizationSPE Annual Technical Conference and ExhibitionEdwards, M. G., Agut, R., Aziz, K.1998
A mechanistic model for multiphase flow in pipes49th Annual Technical Meeting of the Petroleum Society of the CIMPetalas, N., Aziz, K.1998
Experimental study of single phase and two-phase fluid flow in horizontal wellsSPE Western Regional MeetingOuyang, L., Petalas, N., Arbabi, S., Schroeder, D. E., Aziz, K.1998
A simplified approach to couple wellbore flow and reservoir inflow for arbitrary well configurationsSPE Annual Technical Conference and ExhibitionOuyang, L., Aziz, K.1998
A comprehensive reservoir-wellbore model for horizontal wellsSPE India Oil and Gas Conference and ExhibitionPenmatcha, V. R., Aziz, K.1998
Effects of grid systems on predicting horizontal well productivitySPE Western Regional MeetingWan, J., Penmatcha, V. R., Arbabi, S., Aziz, K.1998
Flexible streamline-potential grids with discretization on highly distorted cells6th European Conference on the Mathematics of Oil Recovery (ECMOR)Agut, R., Edwards, M., Verma, S., Aziz, K.1998
Effect of chokes on simultaneous simulation of reservoir and surface facilitiesInformacion Tecnologica CITSchiozer, D. J., Aziz, K.1998; 9 (1): 25-32
Preconditioned newton methods for fully coupled reservoir and surface facility modelsSPE Annual Technical Conference and ExhibitionByer, T. J., Edwards, M. G., Aziz, K.1998
Modelling the behavior of horizontal wellsIEA Workshop and Symposium on EORAziz, K., Arbabi, S., Penmatcha, V. R.1997
Simple but accurate equations for wellbore pressure drawdown calculationSPE Western Regional MeetingOuyang, L., Thomas, L. K., Evans, C. E., Aziz, K.1997
High-throughput TVD-based simulation of tracer flow13th SPE Reservoir Simulation SymposiumWattenbarger, R. C., Aziz, K., Orr, Jr. , F. M.1997: 25
A control volume scheme for flexible grids in reservoir simulationSPE Reservoir Simulation SymposiumVerma, S., Aziz, K.1997
Effects of pressure drop in horizontal wells and optimum well lengthSPE Production Operations SymposiumPenmatcha, V. R., Arbabi, S., Aziz, K.1997
Steady-state gas flow in pipesJOURNAL OF PETROLEUM SCIENCE AND ENGINEERINGOuyang, L. B., AZIZ, K.1996; 14 (3-4): 137-158
MATRIX-FRACTURE TRANSFER SHAPE FACTORS FOR DUAL-POROSITY SIMULATORSJOURNAL OF PETROLEUM SCIENCE AND ENGINEERINGLim, K. T., AZIZ, K.1995; 13 (3-4): 169-178
SIMPLIFIED EQUATION PREDICTS GAS-FLOW RATE, PRESSURE-DROPOIL & GAS JOURNALAZIZ, K., Ouyang, L. B.1995; 93 (19): 70-71
RESERVOIR SIMULATION GRIDS - OPPORTUNITIES AND PROBLEMS (JPT, VOL 45, PG 658, 1993)JOURNAL OF PETROLEUM TECHNOLOGYAZIZ, K.1993; 45 (9): 856-856
RESERVOIR SIMULATION GRIDS - OPPORTUNITIES AND PROBLEMSJOURNAL OF PETROLEUM TECHNOLOGYAZIZ, K.1993; 45 (7): 658-663
PREDICTION OF UNCERTAINTY IN RESERVOIR PERFORMANCE FORECASTJOURNAL OF CANADIAN PETROLEUM TECHNOLOGYBallin, P. R., Journel, A. G., AZIZ, K.1992; 31 (4): 52-62
RELATIVE PERMEABILITIES FROM CENTRIFUGE DATAJOURNAL OF CANADIAN PETROLEUM TECHNOLOGYFiroozabadi, A., AZIZ, K.1991; 30 (5): 33-42
Use of symbolic computation in petroleum engineeringJOURNAL OF PETROLEUM SCIENCE AND ENGINEERINGOberaigner, E., Aziz, K.1991; 5 (3): 237-246
4TH SPE COMPARATIVE SOLUTION PROJECT - COMPARISON OF STEAM INJECTION SIMULATORSJOURNAL OF PETROLEUM TECHNOLOGYAZIZ, K., RAMESH, A. B., WOO, P. T.1987; 39 (12): 1576-1584
HANDLING OF PHASE-CHANGE IN THERMAL SIMULATORSJOURNAL OF PETROLEUM TECHNOLOGYABOUKASSEM, J. H., AZIZ, K.1985; 37 (10): 1661-1663
MICROCOMPUTER DESIGNS SINGLE AND MULTIPHASE PIPE LINES .2.PIPE LINE INDUSTRYAZIZ, K., Gregory, G. A., DESOUZA, E. A.1985; 62 (6): 38-39
MICROCOMPUTER DESIGNS SINGLE AND MULTIPHASE PIPE LINES .1.PIPE LINE INDUSTRYAZIZ, K., Gregory, G. A., DESOUZA, E. A.1985; 62 (5): 31-?
ANALYTICAL WELL MODELS FOR RESERVOIR SIMULATIONSOCIETY OF PETROLEUM ENGINEERS JOURNALABOUKASSEM, J. H., AZIZ, K.1985; 25 (4): 573-579
SENSITIVITY OF STEAMFLOOD MODEL RESULTS TO GRID AND TIMESTEP SIZESSOCIETY OF PETROLEUM ENGINEERS JOURNALABOUKASSEM, J. H., AZIZ, K.1984; 24 (1): 65-74
COMPUTER-SIMULATION OF WATER CONING BY A SEQUENTIAL SOLUTION METHODJOURNAL OF CANADIAN PETROLEUM TECHNOLOGYKO, S. C., AZIZ, K., Settari, A.1980; 19 (1): 61-73
ANALYSIS OF VERTICAL 2-PHASE FLOW CALCULATIONS - CRUDE OIL-GAS FLOW IN WELL TUBINGJOURNAL OF CANADIAN PETROLEUM TECHNOLOGYGregory, G. A., Fogarasi, M., AZIZ, K.1980; 19 (1): 86-92
Petroleum reservoir Simulation-New translations in Russian and ChineseAziz, K., Settari, A.Applied Science Publishers.1979
COMPUTER DESIGN OF DENSE-PHASE PIPELINESJOURNAL OF PETROLEUM TECHNOLOGYGregory, G. A., AZIZ, K., Moore, R. G.1979; 31 (1): 40-50
ORIFICE METERING OF 2-PHASE FLOWJOURNAL OF PETROLEUM TECHNOLOGYMattar, L., Nicholson, M., AZIZ, K., Gregory, G. A.1979; 31 (8): 955-961
CALCULATION OF PRESSURE AND TEMPERATURE PROFILES IN MULTIPHASE PIPELINES AND SIMPLE PIPELINE NETWORKSJOURNAL OF CANADIAN PETROLEUM TECHNOLOGYGregory, G. A., AZIZ, K.1978; 17 (1): 56-68
INTERMITTENT 2 PHASE FLOW IN HORIZONTAL PIPES - PREDICTIVE MODELSCANADIAN JOURNAL OF CHEMICAL ENGINEERINGNicholson, M. K., AZIZ, K., Gregory, G. A.1978; 56 (6): 653-663
ANALYSIS OF MODIFIED ISOCHRONAL TESTS TO PREDICT STABILIZED DELIVERABILITY POTENTIAL OF GAS-WELLS WITHOUT USING STABILIZED FLOW DATAJOURNAL OF PETROLEUM TECHNOLOGYBrar, G. S., AZIZ, K.1978; 30 (FEB): 297-304
CORRELATION OF LIQUID VOLUME FRACTION IN SLUG FOR HORIZONTAL GAS-LIQUID SLUG FLOWINTERNATIONAL JOURNAL OF MULTIPHASE FLOWGregory, G. A., Nicholson, M. K., AZIZ, K.1978; 4 (1): 33-39
CARBON-DIOXIDE INJECTION INTO BOTTOM-WATER, UNDERSATURATED VISCOUS OIL-RESERVOIRSJOURNAL OF PETROLEUM TECHNOLOGYSTRIGHT, D. H., AZIZ, K., Settari, A., STARRATT, F. E.1977; 29 (OCT): 1248-1258
USE OF PRESSURE, PRESSURE-SQUARED OR PSEUDO-PRESSURE IN ANALYSIS OF TRANSIENT PRESSURE DRAWDOWN DATA FROM GAS-WELLSJOURNAL OF CANADIAN PETROLEUM TECHNOLOGYAZIZ, K., Mattar, L., Ko, S., Brar, G. S.1976; 15 (2): 58-65
INFLUENCE OF PRODUCTION-RATE ON RECOVERY OF OIL FROM HORIZONTAL WATERFLOODSJOURNAL OF PETROLEUM TECHNOLOGYSTRIGHT, D. H., Bennion, D. W., AZIZ, K.1975; 27 (MAY): 555-563
COMPRESSIBILITY OF NATURAL GASESJOURNAL OF CANADIAN PETROLEUM TECHNOLOGYMattar, L., Brar, G. S., AZIZ, K.1975; 14 (4): 77-80
DESIGN OF PIPELINES FOR MULTIPHASE (GAS-CONDENSATE) FLOWJOURNAL OF CANADIAN PETROLEUM TECHNOLOGYGregory, G. A., AZIZ, K.1975; 14 (3): 28-33
SOME DESIGN CONSIDERATIONS FOR 2-PHASE FLOW IN PIPESJOURNAL OF CANADIAN PETROLEUM TECHNOLOGYGregory, G. A., MANDHANE, J. M., AZIZ, K.1975; 14 (1): 65-71
CRITICAL EVALUATION OF HOLDUP PREDICTION METHODS FOR GAS-LIQUID FLOW IN HORIZONTAL PIPESJOURNAL OF PETROLEUM TECHNOLOGYMANDHANE, J. M., Gregory, G. A., AZIZ, K.1975; 27 (AUG): 1017-1026
SOME OBSERVATIONS ON MOTION OF ELONGATED BUBBLES IN HORIZONTAL PIPESCANADIAN JOURNAL OF CHEMICAL ENGINEERINGAZIZ, K., Gregory, G. A., Nicolson, M.1974; 52 (6): 695-702
COMPUTER MODEL FOR 2-PHASE CONING SIMULATIONSOCIETY OF PETROLEUM ENGINEERS JOURNALSettari, A., AZIZ, K.1974; 14 (3): 221-236
USE OF IRREGULAR GRID IN CYLINDRICAL COORDINATESSOCIETY OF PETROLEUM ENGINEERS JOURNALSettari, A., AZIZ, K.1974; 14 (4): 396-412
GENERALIZATION OF ADDITIVE CORRECTION METHODS FOR ITERATIVE SOLUTION OF MATRIX EQUATIONSSIAM JOURNAL ON NUMERICAL ANALYSISSettari, A., AZIZ, K.1973; 10 (3): 506-521
USE OF IRREGULAR GRID IN RESERVOIR SIMULATIONSOCIETY OF PETROLEUM ENGINEERS JOURNALSettari, A., AZIZ, K.1972; 12 (2): 103-?
NEW ITERATIVE METHOD FOR SOLVING RESERVOIR SIMULATION EQUATIONSJOURNAL OF CANADIAN PETROLEUM TECHNOLOGYAZIZ, K., Settari, A.1972; 11 (1): 62-?
PRESSURE-DROP IN WELLS PRODUCING OIL AND GASJOURNAL OF CANADIAN PETROLEUM TECHNOLOGYAZIZ, K., Fogarasi, M., GOVIER, G. W.1972; 11 (3): 38-?