Eclipse EOR | SLB

Eclipse EOR

Simulate the full spectrum of enhanced oil recovery methods and model CO2 capture and storage projects

Eclipse EOR

Robust, reliable reference simulator

Eclipse EOR enables modeling chemical enhanced oil recovery techniques to improve tertiary recovery within the simulation workflows.

The result is fast and accurate prediction of the dynamic behavior, as described in the following for some of the most common methods.

  • Solvent modeling.
  • Foam progression tracking.
  • Polymer modeling.
  • Surfactant modeling.
  • Alkaline injection simulation.
  • Alkaline-surfactant-polymer (ASP) simulation.
  • COinjection, storage, extraction, separation and mixing simulation.


Adding polymer to injected water decreases its mobility and hence reduces viscous fingering and improves sweep efficiency. The mobility reduction is due to two effects: The viscosity of the polymer solution is higher than that of pure water, and the reservoir permeability to water is reduced as a result of polymer adsorption onto the rock while the mobility of oil is unaffected. Eclipse EOR’s polymer model takes into account both of these factors using a modified Todd-Longstaff approach to model fluid viscosities, polymer-water mixing, and resulting slug deterioration.

In consideration that many polymer types show a large dependency on the presence of salt, Eclipse EOR enables investigating the effects of brine concentration on the efficiency of the polymer flood. The simulator also takes into account the inaccessible pore volume arising because of the large size of the polymer molecules.

Eclipse chemical EOR presentation
Eclipse chemical EOR presentation
A group sitting in an auditorium watching a presenter speak on a characterization model image

NExT Eclipse training courses

NExT offers a comprehensive training program to support users of the SLB software, plugins, and other software products.

View courses

In this section