Friction and seismic attenuation in rocks
WebApr 10, 2024 · The influence of single concave friction pendulum bearing on the seismic response of cable-stayed bridge was studied by FEM. ... sand and round gravel from top to bottom, with thicknesses of 4.2 m, 3.8 m, 7 m, 10 m and 8.5 m, respectively. Rock layer is distributed below the round gravel layer. ... For the attenuation relations of the peak ... WebNov 15, 2024 · Additionally, we show that at seismic frequencies, the attenuation 1/Q-factor due to friction of the contact line can be much larger than the attenuation due to …
Friction and seismic attenuation in rocks
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WebABSTRACT During hydraulic fracturing (HF) stimulation for unconventional reservoir development, seismic attenuation has a significant influence on high-frequency … WebA critical stress perturbation predicted by our model can be in the range of ∼10 2 −10 4 Pa, that is typical for linear seismic waves. Our model predicts strong seismic attenuation …
WebSep 23, 2024 · Futterman first discussed the basic characteristics of seismic wave attenuation in a rock mass and pointed out that its amplitude attenuation was related to the quality factor, the velocity, ... Attewell, P.B.; Ramana, Y.V. Wave attenuation and internal friction as functions of frequency in rocks. Geophysics 1966, 31, 1049–1056. Web1 Seismic dispersion and attenuation in saturated porous rocks with aligned fractures of finite thickness: theory and numerical simulations – Part I: P-wave perpendicular to the …
WebABSTRACT In the past few decades, great attention has been focused on uncovering the physics of seismic wave attenuation in fluid-saturated rocks. However, the relationship among many variables affecting attenuation is still not completely clear. For instance, although the role of strain in enhancing friction dissipation is relatively well known for dry … WebAbstract. The total attenuation in rock is probably due to a number of sources of dissipation. The mechanism proposed here as one source of attenuation is based on the frictional …
WebSeismic attenuation is an intrinsic property of rocks causing dissipation of energy as seismic waves propagate through the subsurface. It results in the decay of amplitude of the seismic waves. Attenuation is related to …
WebSeismic attenuation (l/Q) is strongly dependent on lithology and pore fluid properties and could become a powerful interpretation tool. The associated ... Friction and seismic attenuation rocks: Nature, Yin, C.S., 1992, Wave attenuation in partially saturated porous solids: Ph.D. dissertation, Columbia small plastic folding table for outdoor useWebABSTRACT Attenuation refers to any decrease in the power of a propagated signal through a medium. Attenuation measurement techniques include ultrasonic, resonance bar, and stress-strain methods. The stress-strain method measures elastic and viscoelastic properties in the seismic frequency range. The signals received via attenuation … highlights captureWebSeismic wave attenuation in rocks was studied experimentally, with particular attention focused on frictional sliding and fluid flow mechanisms. Sandstone bars were … highlights catania avellinoNov 3, 2006 · highlights catania potenzaWebMar 20, 2024 · Additionally, we show that at seismic frequencies, the attenuation 1/Q-factor due to friction of the contact line can be much larger than the attenuation due to viscous fluid flow inside the ... highlights capture appWebJun 6, 2024 · We demonstrate that contact line friction may be a dominant seismic attenuation mechanism in the low frequency limit (< ∼ 10 Hz) when capillary forces dominate over viscous forces during wave ... small plastic folding table supplierWebNov 3, 2006 · 10.4 The effects of single rock joints on seismic Q 10.5 Attenuation and seismic Q from near-surface measurements ... 16.5.3 Basic friction angle f b and residual friction angle f r 16.5.4 Empirical equations for the shear behaviour of rock joints 16.6 Mechanical over-closure, thermal-closure, and joint stiffness modification ... highlights catanzaro monterosi