This course is designed for engineers with interests in unconventional reservoirs.

This course is designed to provide participants with the knowledge required to forecast production and estimate reserves in unconventional (ultra-low permeability) reservoirs (mostly gas but with some applications to oil). Gas shale and tight gas formations are emphasize on this course.

• Overview of unconventional resources evaluation
• Basic fluid flow theory
  • Transient flow
  • Radial and linear flow
  • Constant rate and constant BHP production
  • Radius of investigation
  • Boundary-dominated flow
• Volumetric method of estimating reserves in unconventional reservoirs
• Analog method of forecasting production and estimating reserves in unconventional reservoirs
• Empirical production decline methods of forecasting production and estimating reserves in unconventional reservoirs
  • Arps’ decline model
  • Minimum terminal decline methodology
  • A priori determination of Arps decline parameter “b”
  • Advanced decline curve analysis and its limitations
  • Stretched exponential model
  • Blasingame modified power-law model
  • Long-duration linear flow model
• Use of analytical reservoir models to forecast production and estimate reserves in unconventional reservoirs
• Use of numerical reservoir simulators to forecast production and estimate reserves in unconventional reservoirs
• Use of statistical resource analysis in estimating reserves in unconventional reservoirs
• Applications of appropriate methodology to example situations