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T. Watanabe and A. Higuchi A new apparatus for measuring elastic wave velocity and electrical conductivity of fluid-saturated rocks at various confining and pore-fluid pressures Geofluids 14

Article first published online: 15 JUL 2013 | DOI: 10.1111/gfl.12050

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In order to study the influence of pore-fluid pressure on elastic wave velocity and electrical conductivity, we have built a new apparatus with a pore-fluid pressure control system, which is capable of simultaneously measuring velocity and conductivity. Our new apparatus employs plastic piston-cylinders for the electrical insulation and pore-fluid pressure transmission. The pore-fluid is electrically isolated from the metal work, and its pressure can be precisely controlled without significant contribution of the friction between the piston and cylinder.

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