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An evaluation of the combination of EOR technologies based on applied reservoir simulation
Norwegian University of Science and Technology, Faculty of Engineering Science and Technology, Department of Petroleum Engineering and Applied Geophysics.
2012 (English)MasteroppgaveStudent thesis
Abstract [en]

This master thesis investigates a combination of two different chemical EOR methods: 1) polymer flooding and 2) deep profile control. The combination of these EOR methods are simulated by the use of ECLIPSE100 on a simplified synthetic 3D model (500m x 500m x 36m). A 4 meter thick high permeability layer with a permeability of 2000 mD is sandwiched between two low permeability layers of 100 mD. For most of the simulations, the oil viscosity was 30 cp. After 30 years of production, polymer flooding as a mobility control yielded an additional recovery of 6.7% of STOOIP. The combination of mobility control and deep profile control almost doubled the effect and gave additional recovery of 11.3% of STOOIP. Sensitivity studies showed that the effect of deep profile control is highly dependent on the extension of the partly blocked zone. The larger the blocking zone, the higher recovery by deep profile control. Saturation plots showed that polymer flooding advances the water front in the low permeable layers while profile control recover additional oil around the blocked area inside the low permeable formation. The two methods have a dual advantage and produce additional oil that is complementary to each other. In this master thesis it has been shown that the concept of combined polymer flooding and profile control is a highly promising combined recovery method, and a method that should be considered when evaluating a development scheme.

Place, publisher, year, edition, pages
Institutt for petroleumsteknologi og anvendt geofysikk , 2012. , 106 p.
Keyword [no]
ntnudaim:7178, MTING ingeniørvitenskap og IKT, Petroleumsteknologi
URN: urn:nbn:no:ntnu:diva-18464Local ID: ntnudaim:7178OAI: diva2:565956
Available from: 2012-11-08 Created: 2012-11-08

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