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E-332C - Chemical EOR Certification

5 days GRE/EOR-C
Level
Advanced
Audience
  • Reservoir engineers involved in chemical EOR projects
Purpose
  • To provide a thorough understanding of chemical EOR method and its connection to fundamental mechanisms of oil reservoir production
  • To provide information for decision making of chemical EOR projects based on presenting main displacement mechanisms, related screening criteria, dedicated simulation software and field cases
Learning Objectives
  • To describe recovery expectations from reservoirs under primary, secondary and tertiary methods
  • To describe main Enhanced Oil Recovery methods and explain the way they achieve higher recovery factor
  • To explain chemical EOR mechanisms and related screening criteria
  • To list chemicals types used in chemical EOR method and compare their way of affecting oil recovery
  • To design and apply chemical EOR method using empirical, analytical and simulation tools and evaluate its related performance
Ways and means
  • Interactive lectures and exercises
  • Field case studies
  • Use dedicated software for chemical EOR method

Reminders of oil reservoirs drive mechanisms 0.5 day
  • Primary recovery
  • Natural depletion of undersaturated oil reservoir
  • Solution gas Drive
  • Natural water drive
  • Secondary recovery
  • Water and gas injection
  • Tertiary recovery - EOR
  • Chemical flooding
  • Miscible gas injection
  • Thermal flooding & MEOR
Displacement theory and fractional flow 0.5 day
  • Factors affecting oil recovery
  • Definitions: mobility ratio, sweeping efficiency
  • Fractional flow theory
  • Oil recovery calculation in homogeneous and stratified reservoirs
Polymer flooding 1 day
  • Classic polymer types
  • Polymer properties and behavior: rheology, viscosity, non-Newtonian effects…
  • Adsorption and retention mechanisms
  • Selection criteria
  • Polymer flood design
  • Simulation
  • Case studies
Surfactant flooding 1 day
  • Typical surfactant types
  • Surfactant characteristics: molecular structure, critical micelle concentration…
  • Surfactant - Water. Oil behavior
  • Selection criteria and tests
  • Simulation
  • Case studies
Alkaline flooding 1 day
  • Typical alkaline types
  • Displacement mechanism in alkaline flooding
  • Alkaline consumption
  • Selection criteria and tests
  • Simulation
  • Case studies
Alkaline-Surfactant-Polymer flooding (ASP) 0.5 day
  • Displacement mechanism in ASP flooding
  • Experimental design and calculation of appropriate injection pore volumes
Smart water injection 0.5 day
  • Smart water definition
  • Smart water design workflow
  • Application cases