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Gas Breakthrough and Flow Tests on Opalinus Clay - Ambiguities in the Interpretation of Experimental Data
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Fourth EAGE Shale Workshop, Apr 2014, Volume 2014, p.1 - 5
Abstract
Summary
We present and discuss the results of a comparative study of two laboratory procedures for the determination of the capillary gas breakthrough pressures of low-permeable lithotypes with intrinsic permeability coefficients below 10–20 m2. Well-characterized and mineralogical homogeneous core section of the Opalinus Clay (Mont Terri) were used in this study. The experimental conditions corresponded to a depth of approximately 1500 m depth, representative of a typical CO2 storage scenario (30 MPa confining pressure, 45°C).
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