Principles and Application of SCAL Data for Heavy Oil Reservoirs Reservoir Descriptions and DynamicsManagement and Information

Shawket Ghedan, Anjani Kumar


The impact of Special Core Analysis, SCAL, data on the way fluids are distributed in conventional reservoirs, their hydrocarbons initially in place as well as its subsequent estimation of reserves are well researched and studied and understood, and under different conditions of depletion, secondary and tertiary EOR-Chemical, -Solvent flooding processes. This course will concentrate on the principals of SCAL for heavy oil reservoir under the effect of thermal recovery processes. It will explain the impact that SCAL data would have on the estimation of the oil reserves, and the management of these reserves. This course will show how SCAL data would be altered as a function of reservoirs wettability change under thermal recovery processes. The course also explains the idea of reservoir saturation history and the associated hysteresis with steam and hot water injection, especially those happening in the steam chambers. This course will show the implementation of wettability alteration, temperature, composition dependent and interpolation between relative permeability curves for processes related to heavy oil modeling. 

  • Topics Include: 
    Introduction of the concepts of the different elements of SCAL data, including:
    • Reservoir wettability,
    • W/O and G/O Capillary Pressure
    • Two Phase, W/O and G/O Relative Permeability 
    • Three Phase Relative Permeability
  • Capillary gravity initialization of simulation model under complete water wetting conditions
  • Consider cases of water heavier than bitumen and cases of bitumen heavier than water 
  • Effect of temperature on reservoir wettability 
  • Effect of wettability and temperature change on saturation endpoints 
  • Interpolation between sets of relative permeability curves for different wettability conditions

Learning Level


Course Length

1 Day

Why You Should Attend

Learn how SCAL data can have a direct impact on the way fluids are allocated and distributed in the reservoir simulation models, the performance of secondary and EOR flooding processes, and accuracy of the oil and gas reserves estimates.

Who Should Attend

The course is designed for technical managers, reservoir management and simulation engineers, and production engineers.  It is also designed for reservoir geologists, petrophysicists, geophysicists, and reservoir modelers. This course is also designed for research and development engineers.


0.8 CEUs (Continuing Education Units) awarded for this 1-day course.


To receive a full refund, all cancellations must be received in writing no later than 14 days prior to the course start date. Cancellations made after the 14-day window will not be refunded. Send cancellation requests by email to; by fax to +1.866.460.3032 (US) or +1.972.852.9292 (outside US); or mail to SPE Registration, PO Box 833836, Richardson, TX 75083.

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Shawket Ghedan is currently a reservoir simulation engineering advisor with CMG. He has more than 22 years of both academic and industrial experience in the area of reservoir engineering, management and modeling. In the past, he has held associate professor positions with the Petroleum Institute and University of Baghdad. He also held the position of senior reservoir simulation engineering with ADNOC and ADMA. Furthermore, he was senior instructor and consultant with NExT-Schlumberger.

Ghedan’s expertise encompasses reservoir characterization, and reservoir modeling of waterflooding, carbonate fractured reservoirs, CO2-compositional flooding, chemical flooding, thermal oil recovery, and recovery from unconventional tight formations.

Ghedan has authored more than 40 technical papers, and has taught many reservoir engineering and reservoir modeling courses world-wide. He holds BSc degree in Petroleum Engineering from University of Baghdad, ME and PhD degrees in Reservoir Engineering from Colorado School of Mines. He is currently involved in a number of SPE international activities. He was SPE distinguished lecturer for 2005-2006. He was awarded the 2009 MENA regional reservoir description and dynamics technical award, 2010 SPE outstanding technical editor award, and 2011 MENA regional distinguished petroleum engineering faculty award.