Enhanced Oil Recovery

Commonly only one-third of original oil in place is produced from a well during conventional production.  The remaining oil is left behind due to the physics of fluid flow. Tomson Technologies offers research and development of enhanced oil recovery (EOR) techniques to increase production. Our modeling includes advanced research and evaluations of water-alternating-gas (WAG) processes, carbonate reservoirs, and scale prediction and inhibition during CO2 injection.

More than 60% of the world’s oil and gas are held in carbonate reservoirs. The challenge in oil and gas production is that carbonates exhibit complex properties, such as permeability, porosity and flow mechanisms. Tomson Technologies models complex carbonate reservoirs, which have a high scaling tendency, to determine how EOR efforts can affect a specific reservoir.

Tomson Technologies performs advance modeling for scale prediction and inhibition, which is one of the primary challenges in EOR, as scale buildup causes piping to lose its structural integrity and could lead to failure or reduced production rates. Our models address this problem directly, allowing us to help companies answer key questions, such as:

  • Thermal stability
  • Lifetime of an inhibitor
  • Minimum inhibitor concentration (MIC)
  • Optimization of scale treatments
  • Additive compatibility
  • Effect of EOR on production and scaling tendencies
  • Water Alternating Gas (WAG)

The central issue in using water alternating gas (WAG) as an enhanced oil recovery process is to overcome reservoir heterogeneities and enhance sweep efficiency. As WAG creates a high level of scale potential, Tomson Technologies simulates reservoir conditions and the WAG procedure using core testing and modeling field conditions.

Tomson Technologies’ main research areas for clients include:

  • Influence of WAG in hydraulic conductivity (permeability and porosity)
  • Produced water composition in equilibrium with WAG fluids (formation water, low sulfate)
  • Sea water and CO2 injection
  • Scaling potential in production system
  • Calcite and dolomite kinetics
  • Effect of anhydrite interaction with WAG fluids