干燥和饱和岩石的衰减与频散特性  

THE ATTENUATION AND DISPERSION OF DRY AND SATURATED ROCKS

作　　者：席道瑛[1,2] 刘斌[1,2] 程经毅[1,2] 刘卫[1,2] 

机构地区：[1]中国科技大学地球和空间科学系 [2]第三世界科学院中国科技大学地球化学和天文学高级研究中心

出　　处：《物探化探计算技术》1997年第1期19-22,共4页Computing Techniques For Geophysical and Geochemical Exploration

摘　　要：饱和岩石的衰减和模量都随孔隙液体的成分和粘滞系数而变化。干燥砂岩的衰减与频散随砂岩孔隙度的增大，衰减明显增大。This paper studies attenuation and modulus dispersion of fluid saturated and dry rocks by low frequency responce method in the frequency range of 0.01 100Hz, and compares the attenuation characteristics of sandstone saturated with different fluids. The results show that dry sandstone attenuation increases with the increase of porosity of sandstone.

关 键 词：砂岩 衰减 频散 孔隙度 干燥砂岩 饱和岩石 

分 类 号：P588.212.3[天文地球—岩石学]