Shale Mechanical Properties Influence Factors Overview and Experimental Investigation on Water Content Effects
This paper systematically investigates various key factors that impact the rock-mechanical properties especially the mechanical properties of shale rocks, including confining pressure, water content, TOC (Total organic carbon), clay content, bedding plane orientation, porosity, anisotropy, and temperature effects. We experimentally investigated the impact of water saturation on Barnett shale's rock-mechanical properties (Young's modulus, E and Poisson's ratio, v and uniaxial unconfined compressive strength (UCS)) using a Material Testing System (MTS-810). Experimental results showed that: 1) water saturation has a significant impact on Young's modulus and UCS. Young's modulus decreases 6.1% with an increase of a water saturation (1%) of Barnett shale core corresponding to the value of dry shale's Young's modulus; 2) Young's modulus and UCS decrease linearly with increasing water saturation; And 3) the relationship between water saturation and Poisson's ratio is not obvious.
Document Type: Research Article
Publication date: 01 June 2016
This article was made available online on 29 April 2016 as a Fast Track article with title: "Shale Mechanical Properties Influence Factors Overview and Experimental Investigation on Water Content Effects".
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