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Multi-scale, multi-modal digital rock imaging and analysis of tight rocks from the Bazhenov FormationNormal access

Authors: A. Fogden, A.E. Gavrilov, D.K. Kostin, I.A. Karpov, T.V. Mamyashev, A. Golab, A.E. Mascini, S. Sommacal, A.S. Kirilenko, E. Mikulinsky and O.E. Korneychik
Event name: Saint Petersburg 2018
Session: Core and Fluid Analysis
Publication date: 09 April 2018
DOI: 10.3997/2214-4609.201800192
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 1.82Mb )
Price: € 20

Summary:
Description of the complex structure and texture of Bazhenov formation rocks demands sophisticated analysis technologies. Three Bazhenov samples were investigated using a digital rock workflow for multi-scale, multi-modal, registered imaging and analysis. Use of selective X-ray attenuation contrast techniques enabled micro-CT imaging to separately highlight porosity and organic matter and also to distinguish mobile from immobile hydrocarbons in preserved samples. The correlations and textural relationships between pores, organic matter and mineral matter were further investigated using high resolution SEM imaging and SEM-EDS automated mineralogy. The rock samples comprised a large number of layers on all scales from macro to micro levels, each with a specific mineralogical composition and differing quantities of organic matter and porosity.


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