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Advanced Phase Behavior and PVT Properties of Petroleum Reservoir Fluids


March 11 - 15, 2018

Instructor : Abhijit Dandekar


Reservoir, petroleum and exploitation engineers/technologists, geophysicists, and geologists who are involved in tight sand and unconventional field development and exploitation.


Inadequate knowledge of the pressure, volume and temperature (PVT) properties and phase behavior of petroleum reservoir fluids means dealing with a black box as far as the reservoir is concerned. This course comprehensively covers PVT and phase behavior of petroleum reservoir fluids in a logical manner. This uniquely structured course, a rich blend of the Instructor's sound theoretical foundation and practical experience augmented by a number of case studies and example exercises as well as his way of involving participants in discussions facilitates your learning. You will gain valuable knowledge that is necessary to tackle/deal with petroleum engineering calculations that require PVT properties and phase behavior of reservoir fluids. The course concludes with a dedicated session on practical and emerging PVT and phase behavior topics, not typically covered in textbooks, such as recreating a reservoir fluid sample from limited data and sample, phase behavior in the dense phase region and porous media effects.


1. Practical significance of PVT and phase behavior
2. Introduction to Petroleum Reservoir Fluids
    • Chemical characterization
    • Physical characterization
3. Phase behavior fundamentals
    • Pure hydrocarbons
    • Well defined systems
    • Real reservoir fluids (near critical fluids and five reservoir fluids)
    • Phase behavior in the two-phase region
    • Systems of other interest

4. Sampling of petroleum reservoir fluids
    • Well conditioning
    • Sampling methods
    • Sample representativity
    • Case study on mis-handling of fluid samples
5. Compositional analysis of petroleum reservoir fluids
    • Overview of reservoir fluid composition
    • Gas chromatography, direct sampling, material balance
    • True boiling point distillation
6. Characterization of pseudo fractions and plus fractions (residue)
    • Critical property and acentric factor correlations
    • Splitting schemes
    • Rebuilding fluid compositions from limited data
    • Lumping schemes
    • De-Lumping (composition retrieval)
    • Solid organic deposition assessment

Day 3,
7. Laboratory PVT tests of petroleum reservoir fluids
    • PVT equipment
    • Conventional tests; CCE, DL, CVD, separator tests
    • CVD material balance calculations
    • Exotic tests; swelling, forward and backward contact tests, MMP by rising bubble, slim tube, ternary diagrams
    • Reservoir engineering data from PVT tests
8. Hydrocarbon Vapor-Liquid Equilibria (VLE)
    • Ideal solutions principle
    • PT flash calculations
    • Empirical k-factor correlations; Wilson, Whitson-Torp, NGPSA charts, concept of convergence pressure
    • Equations of state models; SRK and PR
    • Stability analysis (time permitting)
    • EOS applications for saturation pressure, VLE calculations, separator calculations

Day 4,
9. EOS simulation of laboratory PVT tests
    • Simulation of CCE, DL, CVD, separator calculations, swelling tests
10. Effect of fluid characterization, tuning and lumping on phase behavior predictions
    • Discussion of results from three of my papers on this topic
11. Composition based prediction models for surface tension
    • Parachor method & scaling law
12. Composition based prediction models for viscosity
    • Jossi-Stiel-Thodos method
    • Lohrenz-Bray-Clark method
    • Principle of corresponding states (1 and 2 reference components)
13. Practical and emerging PVT and phase behavior topics
    • A novel practical recipe to reconstruct fluid composition from limited sample or data
    • PVT and phase behavior under confinement conditions - porous media effects
    • Phase behavior of petroleum reservoir fluids in the dense phase or supercritical region

Class Exercises: Participants are strongly encouraged to bring laptop computers and scientific calculators to do several numerical problems that will be interactively solved in the class.

Day 5,
Review and handouts on Certificates.


First day will be held at Holiday Inn (Sofitel Hotel), in Cairo. The participants will fly the next day to Hurghada. The course will be continued in Hurghada.


The cost is inclusive of course manual, guidebook, accommodation in Hurghada and air ticket to/from Hurghada.


Abhijit Dandekar is Professor and Chair of the petroleum engineering department at the University of Alaska Fairbanks. He earned B.Tech and PhD degrees in chemical and petroleum engineering from Nagpur University (India) and Heriot-Watt University (UK), respectively, following which he was a senior researcher at the Technical University of Denmark from 1995 - 2000.

He has authored more than 80 papers and a widely adopted textbook on "Petroleum Reservoir Rock and Fluid Properties" and he is also the editor for Emerging Trends and Technologies in Petroleum Engineering book series. As part of this series, he is currently writing a book on "Petroleum Fluid Phase Behavior: Characterization, Processes, and Applications" along with co-authors from Petronas Malaysia and Schlumberger. He has supervised more than 30 graduate students and conducted several funded research projects primarily in the area of PVT and SCAL. In 2014 he received the SPE Distinguished Membership and Fulbright Specialist awards. In 2015 he was the recipient of the SPE Western North America Region Distinguished Achievement Award for Petroleum Engineering Faculty. Over the last 16 years he has contributed to numerous SPE activities, is a current petroleum engineering program evaluator (PEV) for ABET and has served on six visits.

Abhijit Dandekar has also been a visiting faculty at the China University of Petroleum Beijing, PR of China (2002); African University of Science and Technology, Nigeria (2008 and 2012); University of Witwatersrand, South Africa (2014 - current).