Investigation of ultrasonic wave interactions with fluid-saturated porous rocks

Technical Report · Mon Jan 01 00:00:00 EST 1990

DOI:https://doi.org/10.2172/6780002· OSTI ID:6780002

Adler, L

Investigation of ultrasonic waves, especially the slow compressional wave, with fluid-saturated porous solids, especially rocks. This research effort should fine applications in the geophysical evaluation of fluid-bearing porous rocks where parameters such as tortuosity, permeability, saturation level, and internal impurities are difficult to measure by conventional techniques. The proposed investigation may be divided into three major subtasks: Experimental study of surface wave propagation on fluid-saturated porous materials. A new, so-called direct excitation technique will be used on both air- and water-saturated samples; further development of the Lamb wave technique recently introduced to study guided wave propagation in thin fluid-saturated porous plates. The analytical treatment will be extended to account for viscous losses and scattering inhomogeneities; and theoretical and experimental study of slow wave propagation in fluid-saturated natural rocks. A new technique based on the transmission of airborne ultrasound through air-saturated porous plates will be used to determine properties such as tortuosity, permeability, etc. 22 refs., 37 figs., 3 tabs.

• Research Organization: Ohio State Univ., Columbus, OH (USA). Dept. of Welding Engineering
• Sponsoring Organization: DOE/ER
• DOE Contract Number: FG02-87ER13749
• OSTI ID: 6780002
• Report Number(s): DOE/ER/13749-2; ON: DE90012868
• Country of Publication: United States
• Language: English

Related Subjects

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15 GEOTHERMAL ENERGY
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SATURATION
ULTRASONIC WAVES
VELOCITY
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MATERIALS
SEDIMENTARY ROCKS
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