花叶苔菜
Pore fluid viscosity effects on P- and S-wave anisotropy in synthetic silica-cemented sandstone
with aligned fractures嫁接育苗
期刊名称： Geophysical Prospecting
作者： Philip Tillotson,Mark Chapman,Jeremy Sothcott,Angus Ian Best,Xiang-手工卡纸制作
Yang Li美术论文
作者机构： National Oceanography Centre,School of Geosciences
弹琵琶英文
蒋昌健年份： 2015年
期号： 第6期
关键词： Anisotropy; Fractures; Fluid saturation
摘要：Ultrasonic (500 kHz) P- and S-wave velocity and attenuation anisotropy were measured in the la临沂是哪里
boratory on synthetic, octagonal-shaped, silica-cemented sandstone samples with aligned penny-shaped voids as a function of pore fluid viscosity. One control (blank) sample was manufactured without fractures, another sample with a known fracture density (measured from X-ray CT images). Velocity and attenuation were measured in four directions relative to the bedding fabric (introduced during packing of successive layers of sand grains during sample construction) and the coincident penny-shaped voids (fractures). Both samples were measured when saturated with air, water (viscosity 1 cP) and glycerin (100 cP) to reveal poro-visco-elastic effects on velocity and attenuation, and their anisotropy. The blank sample was ud to estimate
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