Well Performance in Tight Oil Reservoirs

Program Objectives

This course deals with the production performance of tight oil sands. Different subsurface aspects of tight oil production are considered. The course covers an overview of tight oil reservoirs in the United States and their production performance. Macroscopic and microscopic displacement mechanisms for tight oil production are discussed followed by the decline characteristics and production trends.
Course Outline
Mechanistic understanding of oil mobilization
  • Micro and macro level mechanisms
  • Differences relative to conventional reservoirs
  • Understanding various drive mechanisms
Impact of fluid properties on reservoir flow
  • Impact of capillary pressure on phase behavior
  • Relevant PVT studies
  • Impact of multiphase flow
Expected trends in production behavior
  • WOR, GOR, Liquid Rate
Well Testing
  • Purpose and Use of Tests
  • Types of well tests
  • Basic Concepts used in Testing
Analysis of Flow & Buildup Test Data
  • Analytical & Type Curve Methods
  • Wellbore Effects--Skin and/or Storage
  • Horner and Equivalent Time
  • Analysis of Horizontal Wells
  • Test Design

Decline Curve Analysis (DCA) or Rate Transient Analysis (RTA)
  • Arps and Fetkovich Methods
  • Blasingame Method
  • Agarwal-Gardner Method
Field Development Plan—Using reservoir simulators
  • Using horizontal and multi-frac wells
  • Showing the effect of well spacing
Field development strategies and reservoir optimization
  • Pilot testing
  • Project scheduling
  • Surveillance
  • Fracture design
    • Conventional
    • Multi-frac
Waterflooding and EOR potential