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The influence of pore fluids on seismic wave velocities under high temperature and high pressure conditions: Development of a new technique with gas apparatus at AIST, Japan
Earth, Planets and Space volume 58, pages1515–1518(2006)
In order to study the effects of different pore fluids on elastic-wave velocities, we developed a new system for measuring elastic wave velocities (V p and V s ) under high-pressure conditions up to 200 MPa and high-temperature conditions up to 200°C using a gas-medium high-pressure and high-temperature apparatus. During the V p and V s measurements, we can also control the pore pressures from outside the rock samples. We measured V p and V s of the Berea sandstone samples under three different pore-fluid conditions including dry (without pore-fluids), in the presence of pore water, and in the presence of pore gas. Here we describe our new measurement technique and establish the capacity of the gas apparatus and measurement technique and their potentialities for the solution of geological problems.
Christensen, N. I., Compressional wave velocities in possible mantle rock to pressure of 30 kilobars, J. Geophys. Res., 79, 407–412, 1974.
Christensen, N. I., Pore pressure and oceanic crustal seismic structure, Geophys. J. R. Astr. Soc., 79, 411–423, 1984.
Christensen, N. I. and H. F. Wang, The influence of pore pressure and confining pressure on dynamic elastic properties of Berea sandstone, Geophysics, 50, 207–213, 1985.
Ito, K. and Y. Tatsumi, Measurement of elastic wave velocities in granulite and amphibolite having identical H2O-free bulk compositions up to 850°C at 1 GPa, Earth. Planet. Sci. Lett., 133, 255–264, 1995.
Kern, H. and A. Richter, Temperature derivatives of compressional and shear wave velocities in crustal and mantle rocks at 6 kbar confining pressure, J. Geophys., 49, 47–56, 1981.
Kono, Y., M. Ishikawa, and M. Arima, Discontinuous change in temperature derivative of Vp in lower crustal rocks, Geophys. Res. Lett., 31, L22601, 2004.
Masuda, K., K. Fujimoto, and T. Arai, A new gas-medium, high-pressure and high-temperature deformation apparatus at AIST, Japan, Earth Planets Space, 54, 1091–1094, 2002.
Matsushima, S., Compressional and shear wave velocities of igneous rocks and volcanic glasses to 900°C and 20 Kbar, Tectonophysics, 75, 257–271, 1981.
Niesler, H. and I. Jackson, Pressure derivatives of elastic wave velocities from ultrasonic interferometric measurements on jacketed polycrystals, J. Acoust. Soc. Am., 86, 1573–1585, 1989.
Todd, T. and G. Simmons, Effect of pore pressure on the velocity of compressional wave in low porosity rocks, J. Geophys. Res., 77, 3731–3743, 1972.
Wulff, A.-M. and H. Burkhardt, Mechanisms affecting ultrasonic wave propagation in fluid-containing sandstone under high hydrostatic pressure, J. Geophys. Res., 102, 3043–3050, 1997.
Zharikov, A. V., E. B. Lebedev, A. M. Dorfman, and V. M. Vitovtova, Effect of saturating fluid composition on the rock microstructure, permeability and Vp under high pressure and temperature, Phys. Chem. Earth (A), 25, 215–218, 2000.
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Kitamura, K., Masuda, K., Takahashi, M. et al. The influence of pore fluids on seismic wave velocities under high temperature and high pressure conditions: Development of a new technique with gas apparatus at AIST, Japan. Earth Planet Sp 58, 1515–1518 (2006) doi:10.1186/BF03352651
- Pore fluid
- V p
- V s
- Berea sandstone
- gas apparatus