NDLI: Investigating Impact of Flow Rate and Wettability on Residual Trapping in CO2 Storage in Saline Aquifers through Relative Permeability Experiments

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Investigating Impact of Flow Rate and Wettability on Residual Trapping in CO2 Storage in Saline Aquifers through Relative Permeability Experiments

Content Provider	Scilit
Author	Soroush, Mansour Wessel-Berg, Dag Torsaeter, Ole Kleppe, Jon
Copyright Year	2013
Description	In order to investigate effects of injection rate and aquifer influx in imbibition processes and also wettability behaviour for CO 2 storage in aquifers, two representative fluids are chosen for relative permeability measurements. These two fluids represent CO 2 and brine at the reservoir conditions. The first set of experiments is done by n-heptane and a mixture of glycerol and water, flowing in a glass beads porous medium. The density difference and viscosity ratio are designed to be in the range of CO 2 -brine systems normally found at reservoir conditions. Another set of experiments is designed based on dodecane and a mixture of glycerol and water. The second mixture is chosen so that the same ratios of density differences and viscosity ratios are maintained. Interfacial tension and contact angles are measured for both cases. By this set up, two cases of strongly water-wet and water-wet systems are designed. The purpose of this study is to quantify the impact of wettability and flow rate through relative permeability experiments. Results show that the relative permeability is sensitive to both rate and wettability, and after interpreting the data from experiments in a history matching process, based on the effects of drainage and imbibition rates and also the effect of wettability, correlations are developed to predict the amount of CO 2 trapped in the pores. This newly developed method will be useful in obtaining good estimations of real case trapping volume in CO 2 storage processes. Scaling analysis of the experiment shows that the tests are well designed in the range of real reservoir conditions.
ISSN	19270569
e-ISSN	19270577
DOI	10.5539/eer.v3n2p53
Journal	Energy and Environment Research
Issue Number	2
Volume Number	3
Language	English
Publisher	Canadian Center of Science and Education
Publisher Date	2013-06-18
Access Restriction	Open
Subject Keyword	Petroleum Engineering Relative Permeability Experiments Flow Rate and Wettability
Content Type	Text
Resource Type	Article

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