... Abstract The purpose of this study is to examine the variation of physical properties and strength of magnetite due to microorganism throughout various laboratory tests such as absorption, elastic wave velocity, uniaxial compressive strength. For this purpose, pH and Eh with culture period...

... corrosion of rock. The rocks used in this study were granodiorite and sandstone, which are known as anisotropic rocks. Measurement of elastic wave velocity and observation of thin section of these rocks were performed to make clear orientation of inherent micro cracks and grains. Then two types of specimens...

... can explain by the theories of linear poroelasticity. Different height specimens (5cm and 3cm) exhibit similar strain magnitude and wave velocity behavior. Effect of Desiccation on the Strain and Elastic Wave Velocities of Tage Tuff Thilini N. Illankoona*, Masahiko Osadab and Nayana M. Adikaramc...

... ABSTRACT It is essential to know how fluid flow in pores and fracture networks in rock and elastic wave velocities respond to the elevated pressures found at depth for better understandeing of seismology, volcanology and rock engineering. In this study, we investigate the changes in fluid...

... dynamic shear modulus Upstream Oil & Gas larger size incline specimen sand grain mortar specimen Reservoir Characterization free-free resonant column test GPa artificial-joint specimen shear modulus elastic wave velocity SABSTR The m change o porosity author an joint spe Keyword 1. INTR...

... and scCO 2 . Upstream Oil & Gas scco 2 sandstone investigation Reservoir Characterization Brine shale compression test subsurface storage rock specimen reaction condition porosity threshold displacement property change specimen pure water elastic wave velocity interaction...

... 10 20 30 40 50 p re ss u re p , P a Time, hour Start of vacuum pump Start of test Injection of distilled water Fig. 7 Servo-controlled testing machine. M. Kataoka, et al 4 PREPEARING OF TEST SPECIMEN Granite is known as anisotropic and was tested for elastic wave velocity in three perpendicular...