【摘要】 利用垂直定向裂缝模型和 MTS岩石物性测试系统 ,测试了不同材料和不同状态裂缝模型的地震特征响应。对特征响应进行分析和比较后发现 ,虽然波的传播速度 ,振幅 ,吸收衰减 ,主频均可用来检测裂缝的特征参数 ,但是裂缝变化对振幅的影响远大于对速度的影响。因此 ,利用地震波的振幅、衰减等属性参数检测裂缝特征比利用速度参数更有效。更多还原

【Abstract】 Seismic responses to vertically oriented fracture models made of different material and under different temperature and various atmospheric pressure conditions were measured using MTS(a rock Mechanics Test System). From comparison and analysis of those seismic responses we find that many seismic characteristic parameters such as seismic velocity, amplitude, attenuation, spectrum etc. can be used to detect the fracture system, but the effect of vertically fracture system on seismic amplitude is much more effective than that on seismic velocity. Therefore, seismic amplitude as well as attenuation characteristic attribute may be much better than velocity one for the detection of the fracture system.更多还原