Unconventional Reservoir Rate-Transient (Production Data) Analysis

Reservoir Description and Dynamics Production and Operations


This course provides an overview of the state-of-the-art in unconventional gas and light oil well production analysis. The concept of rate-transient analysis is introduced and analytical methods for rate-transient analysis are reviewed.


  • Introduction to Concept
  • Example Signatures of:
    • Vertical wells in low-k single porosity reservoirs   
    • Horizontal wells in low-k single porosity reservoirs
    • Multi-fractured horizontal wells in low-k single porosity reservoirs
    • Multi-fractured horizontal wells in shale
  • Analytical Methods for Rate-Transient Analysis
    • Overview of techniques
    • Type-curve methods
    • Straight-line (flow-regime) methods
    • Analytical and hybrid forecasting techniques
  • Empirical Methods for Rate-Transient Analysis
    • Arps decline curves – use with Fetkovich type-curves
    • New methods (eg. Power-Law Exponential)
    • Tight gas case study: Application of rate-transient techniques
    • Integration with surveillance data (eg. Microseismic)
    • Hydraulically-fractured vertical wells
    • Multi-fractured horizontal wells: commingled stage analysis
    • Multi-fractured horizontal wells: individual stage analysis
  • Additional Example Applications:
    • Tight gas
    • Single and multi-phase shale gas
    • Tight oil/shale oil
    • Flowback

Learning Level


Course Length

2 Days

Who Should Attend

Engineers, geologists and managers in industry or academia involved in developing or evaluating unconventional gas reserves will benefit from a background in the latest techniques for production analysis of unconventional reservoirs.


Engineers are responsible for enhancing their professional competence throughout their careers. Licensed, chartered, and or/ certified engineers are sometimes required by government entities to provide proof of continued professional development and training. Training credits are defined as Continuing Education Units (CEUs) or Professional Development Hours (PDH). Attendees of SPE training courses earn 0.8 CEUs for each day of training. We provide each attendee a certificate upon completion of the training course.


Christopher R. Clarkson is currently the EnCana Chair in Unconventional Gas Research at the University of Calgary. His research interests include gas storage and transport mechanisms in coalbed methane (CBM) and shale reservoirs and reservoir characterisation of unconventional reservoirs as wells as advanced production data analysis methods as applied to unconventional reservoirs.