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- W4243704606 abstract "Carbon dioxide injection is an effective method for enhanced oil recovery. In this process, CO2 develops miscibility with the oil under reservoir conditions, and leads to additional oil recovery. Proper reservoir characterization has a significant influence on designing and implementing a successful CO2 flood in a reservoir.This paper presents the results of a reservoir characterization analysis and simulation in a relatively small reef located in Northern Alberta, Canada, which was selected as a candidate for a CO2 injection project. This reef has a thick oil column spanning a small area with steeply sloping sides, and two wells drilled on the same side of the reef. Open-hole logs and production history data were available for only one of the two wells. Data analyses disclosed a number of challenges that could affect the results of any simulation for predicting the performance of CO2 displacement in this field. These challenges included, but were not limited to, the existence of two no-flow barriers with unknown extensions, lack of other data such as relative permeability, and lack of information on lateral distribution of the reservoir properties. Material balance analysis indicated the maximum oil in place was 4.7 MMSTB with a weak water support.A fully compositional reservoir simulator (CMG-GEM™) was used with the aim of improving the understanding of the reservoir characteristics, and investigating the suitability of CO2 injection. An 8-component Peng-Robinson EOS was utilized to describe the phase behaviour of the reservoir fluids and injected CO2. History matching was done and the current reservoir pressure was found to be about 1000 psi below the minimum miscibility pressure. A simulation study was conducted and the model predicted an incremental oil recovery of around 1.04 MMSTB and about 0.424 Mt of injected gas stored in the reservoir." @default.
- W4243704606 created "2022-05-12" @default.
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- W4243704606 date "2005-03-01" @default.
- W4243704606 modified "2023-09-24" @default.
- W4243704606 title " " @default.
- W4243704606 doi "https://doi.org/10.2523/93472-ms" @default.
- W4243704606 hasPublicationYear "2005" @default.
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