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- W2391115845 abstract "This paper uses different representative sand-stones as experimental samples, and core-wave velocity meter. Influence of the degree of saturation, frequency and fluid type on sonic wave attenuation in porous rocks is studied. Under room temperature and common pressure, it is found that:(1) attenuation of compressional wave is higher than that of shear wave in the dry rocks. Attenuation of both P-wave and S-wave in fully brine-saturated rocks is higher than that in the dry rocks. Increment of S-wave attenuation depends on the degree of saturation in complicated way.(2) Amplitude has exponential decrease with increasing frequency in brine-saturated rocks. At low frequency, sonic wave has greater rate of attenuation. After certain characteristic frequency (about 600kHz), amplitude is independent of frequency.(3) For differently fluid-saturated rock, amplitude of sonic wave decreases with increasing viscosity of fluid.To sum up, we can get more fundamental information from attenuation measurement. These laboratory observational results may be helpful in in-situ identification of lithology, and can be used to serve for the development of oil fields." @default.
- W2391115845 created "2016-06-24" @default.
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- W2391115845 date "1993-01-01" @default.
- W2391115845 modified "2023-09-25" @default.
- W2391115845 title "The Investigation of the Influence of the Degree of Saturation, Frequency and Fluid Type on the Sonic Wave Amplitude in Sandstones" @default.
- W2391115845 hasPublicationYear "1993" @default.
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