Permeability evolution in sandstone due to injection of CO2-saturated brine or supercritical CO2 at reservoir conditions
MetadataShow full item record
Presented at 12th International Conference on Greenhouse Gas Control Technologies, GHGT-12. Edited by Tim Dixon, Howard Herzog and Sian Twinning.
We measured the change in permeability of two selected sandstones (Berea, Fonteinebleau) due to injection of CO2-saturated (“live”) brine, unsaturated (“dead”) brine or supercritical (sc) CO2 at reservoir conditions. We found that the permeability did not significantly change in a clean sandstone consisting of pure quartz (Fonteinemebleau) due to live or dead brine injection, although permeability changed due to scCO2 injection by ~23%. The permeability in the Berea sandstone, however, changed due to live or dead brine injection, by up to 35%; this permeability reduction in Berea sandstone was likely caused by fines release and subsequent pore throat plugging as the damage was more significant at higher injection rates. We expect that this phenomenon – i.e. rock permeability reduction due to CO2 injection into the formation – can have a significant and detrimental influence on CO2 injectivity, which would be reduced accordingly.
Showing items related by title, author, creator and subject.
Yu, H.; Zhang, Y.; Lebedev, Maxim; Wang, Z.; Verrall, M.; Iglauer, Stefan (2019)© Copyright 2018, Society of Petroleum Engineers. Carbon dioxide (CO2) inject to the saline aquifers are general considered as the best candidates for large-scale storage and CO2 enhance oil recovery. The pore structure ...
Advanced Technologies for Monitoring CO2 Saturation and Pore Pressure in Geologic Formations: Linking the Chemical and Physical Effects to Elastic and Transport PropertiesMavko, G.; Vanorio, T.; Vialle, Stephanie; Saxena, N. (2014)Ultrasonic P- and S-wave velocities were measured over a range of confining pressures while injecting CO2 and brine into the samples. Pore fluid pressure was also varied and monitored together with porosity during injection. ...
Al-Yaseri, A.; Zhang, Y.; Ghasemiziarani, M.; Sarmadivaleh, Mohammad; Lebedev, Maxim; Roshan, H.; Iglauer, Stefan (2017)Permeability variation is one of the key factors influencing the injectivity of CO 2 in CO 2 sequestration projects. Despite the research carried out on the subject, the results are highly inconsistent. In this study, the ...