Geology and Geophysics - Tight Oil Reservoirs

Program Objectives


This course provides an extensive introduction to the geological and geophysical concepts of tight oil reservoirs. It identifies the data that need to be collected, how to analyze and interpret them, and how to integrate and apply this knowledge to the decision‐making process. Participants will develop a broad understanding of the practices and pitfalls in assessing these reservoirs, and will reinforce this knowledge by analyzing case studies.
Course Outline
Introduction
  • Tight vs. conventional resources
  • Tight oil basins in the U.S.
  • Ranking of basins by OOIP and production
  • Tight oil reservoir characteristics: phi, k, Sw, brittleness, mineralogy, organic content, thickness, thermal maturity
  • Correlation of tight oil reservoirs to source rock kitchens
  • Keys to success
Geochemistry
  • Source rock deposition and facies
  • Analysis: thickness, richness (TOC,) and maturity (Ro)
  • Modeling burial history and maturation
  • Predicting oil, condensate, and gas fairways
  • Kerogen and porosity
Reservoir Characteristics
  • Porosity
  • Permeability
  • Water saturation
  • Oil-in-place


Pore Pressure, Mobility, and Recovery
  • Depth of burial pressure
  • Over-pressure
  • Oil production vs pore pressure
Brittleness, Fractures, and Fracking
  • Young’s modulus and Poisson’s ratio
  • Fracture corridors and oil production
  • Fracking and hydraulic fracture stimulation
Geophysics
  • Full Azimuth Seismic Acquisition
  • Anisotropic Processing
  • Elastic and Acoustic Inversion
  • Microseismic
Case Studies
  • Sweet spot analysis
  • Eagle Ford
  • Midland Basin: Wolfcamp and Sprayberry
  • Delaware Basin
  • Bakken
  • Niobrara
  • Barnett Oil
  • Woodford Oil
  • Marcellus Oil
  • Utica Oil