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Brazilian Test and Static Strength
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Tyumen 2017, Mar 2017, Volume 2017, p.1 - 5
Abstract
Summary
In this paper we present some results of a study of static deformation characteristics of rocks at reservoir conditions in comparison with the results of the Brazilian test. The mechanical strength properties of rocks (static and dynamic elastic modulus, Poisson’s ratio, Young’s modulus, shear modulus, compressibility, the limits of elasticity, strength) were defined in conditions close to the reservoir conditions - this is the most relevant information for a variety of tasks, related to the calculation of reserves, mining and oil recovery enhancement. However, all of these modules of rocks were determinates under compression conditions (uniaxial or hydrostatic compression). Getting of important information about the tensile strength of the rock in the atmosphere, and, especially, at reservoir conditions, much more complicated. Therefore, to estimate tensile strength, we used indirect tensile test (the so-called “Brazilian test”). Comparison of the results of research of static deformation characteristics of rocks at reservoir conditions with the results of the Brazilian test are showed a satisfactory correlation between the tensile strength and static modulus of elasticity.
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