Effective use of heterogeneity measures in the evaluation of a mature CO2 flood

Document Type

Conference Proceeding

Publication Date

10-15-2008

Abstract

Heterogeneity measures in terms of recovery efficiency and utilization rate in a mature CO2 flood were studied. Cores from 96 out of the 233 total wells in the Little Creek Field, Mississippi were considered. For most of the measures, evaluation of recoveries showed weak correlation trends and slightly stronger correlations were found with utilization rates. Mapping of the well-by-well heterogeneity measures seemed to show better geological trends compared with traditional maps of the basic parameters that make up the measures. These geological trends were successfully used to adjust rock-types and guide geostatistical modeling of permeability and porosity when performing reservoir modeling and history matching. This is an abstract of a paper presented at the 2008 SPE/DOE Improved Oil Recovery Symposium (Tulsa, OK 4/19-23/2008).

Publication Source (Journal or Book title)

SPE - DOE Improved Oil Recovery Symposium Proceedings

First Page

1325

Last Page

1333

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