Our reservoir engineering expertise covers the following:

  • Numerical simulation and modelling capability: ENGIE E&P International has developed its own 3D simulator for storage activity, which was one of the first to be able to describe flow in the reservoir on a local and a regional scale. Standard industry simulators such as Petex Suite™, Petrel RETM, Eclipse™, Saphir™ are commonly used for analytical reservoir evaluation, material balance analysis, decline estimation, dynamic modelling, history matching and performance prediction,
  • Reservoir uncertainty Management, by integrating geological and reservoir key uncertainties into a common framework. Tools such as Condor™ and CougarTM are used for automatic history matching of the production data,
  • PVT analysis (oil, condensate, gas): evaluation of fluid properties such as viscosity, density, composition and phase behaviour from reservoir to surface conditions,
  • Well test design and site supervision, well test interpretation. We cover a wide range of well geometries and reservoir characteristics: vertical to horizontal wells, conventional reservoirs as well as tight, ultra-tight and fractured reservoirs,
  • Enhanced Oil/Gas Recovery: various technologies are implemented for oil such as steam injection, polymer flooding, ASP (Alkali Surfactant Polymer), and CO2 injection. We have been operating CO2 injection for gas since 2004,
  • CCS (Carbon, Capture and Storage): expertise in gas mixing phenomenon is currently used to plan long term CO2 sequestration in depleted gas fields.

Reservoir engineering for gas storage

ENGIE E&P International is one of the very few companies with a proven capacity for the long-term Management of inert gas injection, gas mixing phenomenon and full replacement of working gas by use of another gas. This technology has been successfully implemented in six storage sites since 1973, and ENGIE E&P International is one of the first operators to have performed CO2 storage in Europe (at K12-B in the Dutch North Sea as operator, and at Snøhvit in Norway as partner). Our expertise is currently being put to use in planning CO2 injection activities in the context of Carbon Capture and Storage (CCS) in depleted gas fields.

We have also developed specific expertise in relationship to naturally and hydraulically fractured reservoirs for production optimisation and prediction.