PVT in Modeling Horizontal Multi-Fractured Wells in Ultra-Tight Rock

Reservoir Descriptions and Dynamics

Course Description

PVT (fluid phase and volumetric behavior) impacts flow modeling in the reservoir, production pipes, and surface process facilities. Several special considerations are required for proper PVT description (sampling and modeling) of ultra-tight/shale formations. This course covers the key issues related to PVT in such systems: sampling, PVT lab tests, in-situ versus produced fluid streams, EOS and black-oil modeling, and transport properties such as viscosity and interfacial tension. A short review of non-conventional thermodynamics is also given, including capillarity and confinement on phase equilibria (e.g. saturation pressure and phase compositions).


  • Surface production samples and readily-accessible data – what they are and how to use them
  • When to sample, and how to sample liquid-rich fluids
  • Black-oil PVT  model and application to liquid-rich fluids
  • Correlations based on surface production samples
  • Equation of State (EOS) model review and application to liquid-rich fluids
  • Using numerical well models to back-calculated in-situ fluid composition (initial solution GOR)
  • Disconnect between in-situ and produced well streams
  • Unconventional thermodynamics: capillarity and confinement

Learning Level

Petroleum or chemical engineer with basic PVT knowledge

Course Length

1-2 Days

Why Attend

Attendees will gain a fundamental understanding of key PVT issues related to development of ultra-tight unconventional resources, from dry gas to gas condensate and high-GOR light oils found in plays such Eagle Ford, Bakken, Montney, Anadarko, and Permian basins.

Who Attends

Attendees should attend if they are involved in modeling reservoir or production or surface processes in ultra-tight reservoirs.


.8 CEUs (Continuing Education Units) are awarded for the 1-day version of the course, and 1.6 CEUs are awarded for the 2-day version of the course.

Cancellation Policy

All cancellations must be received no later than 14 days prior to the course start date. Cancellations made after the 14 day window will not be refunded.  Refunds will not be given due to no show situations.

Training sessions attached to SPE conferences and workshops follow the cancellation policies stated on the event information page. Please check that page for specific cancellation information.

SPE reserves the right to cancel or re-schedule courses at will. Notification of changes will be made as quickly as possible; please keep this in mind when arranging travel, as SPE is not responsible for any fees charged for cancelling or changing travel arrangements.

We reserve the right to substitute course instructors as necessary.

Full regional cancellation policies can be found at the Cancellation Policy page within the SPE Training Course Catalog.


Curtis Hays Whitson is professor of petroleum engineering at the Norwegian University of Science and Technology (NTNU), Dept. of Petroleum Engineering & Applied Geophysics; he founded the international consulting company PERA in 1988, as well as Petrostreamz in 2006, a petroleum software company dealing with optimized IAM (Integrated Asset Modeling).

Whitson researches and teaches both university and industry courses on petroleum phase behavior (PVT), gas-based EOR, gas condensate reservoirs, integrated-model optimization, petroleum-streams management, liquid-loading gas well performance, and liquids-rich shale well optimization. He has co-authored two books: Well Performance (Golan and Whitson) and the SPE monograph Phase Behavior (Whitson and Brulé), co-authored some 100 papers, and has written three chapters of edited books.

Whitson consults extensively for the petroleum industry through PERA, a specialty consulting company he founded in 1988.  PERA staff consult on compositionally-sensitive reservoir processes for most major oil companies worldwide. Whitson is also CTO at Petrostreamz which has developed the new-generation software Pipe-It for optimized IAM.

Whitson has a B.Sc. degree in petroleum engineering from Stanford University and a PhD degree from the Norwegian Institute of Technology (now NTNU). He is an distinguished member of the Society of Petroleum Engineers (SPE), and he received twice the Cedric K. Fergusson award (as co-author with Øivind Fevang, 1997 and Lars Høier, 2001), and the Anthony F. Lucas Gold Medal (2011) from the SPE. He received the 2010 Excellence in Research Award from Statoil for his contributions to gas-based EOR and fluid characterization. Whitson was elected into the Norwegian Academy of Technological Sciences (NTVA) in 2012.