Experimental study on influence of carbon dioxide on porous structure and mechanical properties of shale rock
Journal Title: Bulletin of the Military University of Technology - Year 2017, Vol 66, Issue 4
Abstract
Shale rocks are geological formations which can be unconventional gas reservoirs. During their interaction with carbon dioxide, which can be used as a fracturing fluid in shale gas recovery process, many phenomena take place that can influence rock structure and mechanical properties. The research on changes in rock structure under super critical carbon dioxide interaction and their influence of shale properties were presented in the paper. The structural tests were carried out with the use of microscopic techniques with different resolutions of visualization. The uniaxial compression test was applied as a mechanical properties’ assessment experiment. As a result of research, some dependence was observed. The bigger decrease was in porosity after infiltration in lower zooms, the bigger increase in porosity in high zooms and mechanical properties was noticed. Keywords: geomechanics, shale rock, carbon dioxide
Authors and Affiliations
Danuta Miedzińska
Keywords
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- DOI 10.5604/01.3001.0010.8234
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