我们测得了纵波与横波速度,并用数字处理技术研究出盐水砂岩和气饱和砂岩中波的衰减测量时的有效应力范围为5～60MPa。测得了盐水饱和砂岩的复电阻率,气饱和状态下的渗透率处于与速度测量值同样的应力范围。在0.3～0.8MHz的频率范围内通过样品发射了P波和正交偏振S波宽带超声波脉冲,其特性与低吸收参考样品(铝)进行了对比。利用付里 We measured the P-wave and S-wave velocities, and the digital processing technique was used to study the effective stress range of 5 ~ 60 MPa for the attenuation measurements of the waves in saline and gas-saturated sandstones. The complex resistivity of the brine-saturated sandstone was measured and the permeability under gas-saturated conditions was in the same stress range as the velocity measurements. P wave and Orthogonal Polarization S-wave broadband ultrasonic pulses were transmitted through the sample in the frequency range of 0.3-0.8 MHz, and their characteristics were compared with the low absorption reference sample (aluminum). Use pay