Abstract：Law-frequency cavibratian experiments of four kinds of fluid-saturated feldspar sandstanes which have different viscosity coefficients respectively were candu}ted so as to know haw fluid viscosity coefficient influences attenuation, madulus and velocity dispersion in fluid-saturated sandstone. These experiments lead to believable conclusions:Bath attenuation temperature spectrum and attenuation frequency spectrum show that acoustic attenuation is linear with viscosity coefficient in 0.0l~lOHz band. Higher viscosity coefficient results in higher modulus. There occur obvious madulus and velocity dispersions, which tend severe with the increase of viscosity coefficient.
席道瑛, 易良坤, 马勇, 刘卫, 史进良. 砂岩中孔隙流体的黏性与衰减、模量和速度色散[J]. 石油地球物理勘探, 1999, 34(4): 420-425.
Xi Daoying, Yi Liangkun, Ma Yong, Liu Wei, Shi Jinliang. Relations between fluid viscosity and attenuation, modulus or velocity dispersion in porous sandstone. OGP, 1999, 34(4): 420-425.
