摘要
建立了一套试验装置，以解决含水岩样变形的电阻应变片测量问题，并实现有孔隙压力的三轴应力下饱和水岩样纵、横波速度和变形的同步测试，通过时８块砂岩岩样的测试，初步得出了饱和水砂岩波速和动静态弹性参数随应力状态变化的基本规律，给出了岩石静态弹性模量和静态泊松比随岩石密度、孔隙度和围压等参数变化的多元线性回归关系式，并对动、静态弹性参数间的关系进行了初步分析。
An experimental apparatus was installed to measure the velocities ofcompressional and shear wave, and to determine the dynamic and static elastic parameters ofrock samples under triaxial stress and pore pressure synchronistically. A method for measuringthe strain of water-saturated samples by strain gauges was proposed. The basic changes of sandwave velocities, dynamic and static elastic parameters with stress were analyzed byinvestigating 8 samples. A multielement linear regression equations about the changes of rockstatic elastic parameters with the density and porosity of rock, clay content, confiningpressure and acoustic velocities were given. The relationship between dynamic and staticelastic parameters was quantitatively discussed.
出处
《石油大学学报（自然科学版）》
CSCD
1994年第3期41-47,共7页
Journal of the University of Petroleum,China(Edition of Natural Science)
关键词
弹性
测试
钻井
岩石力学
Sand:Wave velocities
Young' s modulus
Poisson ratio
Dynamic andstatic measurement
