Computed microtomography and microhardness core sample tests in analysis of various fluids interaction with unconventional reservoir rock samples

DOI: 10.5176/2251-3353_GEOS16.32

Authors: Michał Maksimczuk, Tomasz Wejrzanowski, Maciej Spychalski

Abstract: Rocks have various properties in relation to fluids interaction (e.g. fracturing). This changes is caused of different mineralogical composition, rock structure, stratification, fractures, etc. One of the key properties in the hydrocarbons reservoir characterization is porosity and strength, which are also associated with fluid interaction. This study presents the use of high-resolution computed microtomgraphy and microhardness core sample tests in analysis of porosity and strength changes due to influence of various fluid interaction (destilled water, 12{6e6090cdd558c53a8bc18225ef4499fead9160abd3419ad4f137e902b483c465} KCl, 18{6e6090cdd558c53a8bc18225ef4499fead9160abd3419ad4f137e902b483c465} HCl and 36{6e6090cdd558c53a8bc18225ef4499fead9160abd3419ad4f137e902b483c465} HCl solutions) in time function. The obtained results enable for shale rocks characterization which were collected from unconventional reservoir in northern Poland.

Keywords: high-resolution computed microtomography, microhardness test, shale, fluids, northern Poland