疏松砂岩超声测试及其结果分析  

Ultrasonic test of loose sandstone and the result analysis

作　　者：周继宏[1] 章成广[1] 

机构地区：[1]江汉石油学院应用地球物理系

出　　处：《石油地球物理勘探》1999年第3期290-294,共5页Oil Geophysical Prospecting

摘　　要：在室温常压下，通过对大量疏松砂岩的超声测定发现：①其纵、横波速度较低；②纵波速度vp在饱和水时比在饱和空气时有较大的增加；③横渡速度vs在饱和水时比在饱和空气时略有降低；④纵、横波速度比vp／vs在饱和水时比在饱和空气时有较大的增加；⑤纵、横波速度与孔隙率呈线性关系。The ultrasonic test of multitudinous loose sandstone in ordinary atmospheric temperature and pressure leads to the conclusions: that both compressional wave and shear wave have quite low velocity. that compressional wave goes faster in water-saturated case than in air-satu-rated case. that shear wave velocity (vs) shows little slower in water-saturated condi-tion than in air-saturated condition. that the ratio of compressiona1 wave velocity to shear wave velocity (vp/vs)is higher in water-saturated condition than in air-saturated condition. that compressional and shear wave velocities are linear with porosity.

关 键 词：疏松砂岩 饱和水砂岩 超声波勘探 油气勘探 

分 类 号：P631.5[天文地球—地质矿产勘探] P618.130.8[天文地球—地质学]