| 地层条件下砂岩含水饱和度对波速及衰减影响的实验研究 |
| |
| 引用本文： | 王大兴,辛可锋,李幼铭,高静怀,伍向阳.地层条件下砂岩含水饱和度对波速及衰减影响的实验研究[J].地球物理学报,2006,49(3):908-914. |
| |
| 作者姓名： | 王大兴 辛可锋 李幼铭 高静怀 伍向阳 |
| |
| 作者单位： | 1.西安交通大学电子与信息工程学院， 西安 710049 2 中国科学院地质与地球物理研究所， 北京 100029 3 中国石油长庆油田分公司， 西安〓710021 |
| |
| 摘 要： | 为了研究含气地层对地震波传播的影响，在地层温压条件下，用超声波测试了长庆油田苏里格气田砂岩样品在不同饱和度下的纵、横波速度和衰减Q值.实验表明砂岩样品的物性和流体含量对纵波的速度和衰减的影响均大于横波,含气饱和度大于60％时纵波Q值变化明显；物性越好，含气饱和度越高，纵波Q值越小，吸收越大.分析实验结果和相应的影响机理，给出了利用纵波的吸收衰减预测砂岩含气性的应用实例.
|
| 关 键 词： | 纵波速度 横波速度 含水饱和度 衰减 |
| 文章编号： | 0001-5733（2006）03-0908-07 |
| 收稿时间： | 2004-10-29 |
| 修稿时间： | 2004-10-292006-01-27 |
An experimental study of influence of water saturation on velocity and attenuation in sandstone under stratum conditions |
| |
| WANG Da-Xing,XIN Ke-Feng,LI You-Ming,GAO Jing-Huai,WU Xiang-Yang.An experimental study of influence of water saturation on velocity and attenuation in sandstone under stratum conditions[J].Chinese Journal of Geophysics,2006,49(3):908-914. |
| |
| Authors: | WANG Da-Xing XIN Ke-Feng LI You-Ming GAO Jing-Huai WU Xiang-Yang |
| |
| Institution: | 1.School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049， China 2 Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029，China 3 Research Institute of E & D, Changqing Oil Field Company, Xi'an 710021，China |
| |
| Abstract: | To study the influence of the gas saturata to seismic wave propagation, at the temperature and pressure of stratum, the velocity and attenuation Q of primary and share waves in Changqing sandstone samples are measured under different saturation degrees by ultrasonic. The result shows that under the high frequency condition, fluid contents in sandstone samples have nearly no effect on share wave velocity, but affects obviously primary wave velocity; and the relation between fluid content and wave attenuation is different for S-wave and Pwave. The analysis to the experiment result and the corresponding influence mechanism is made, and an application example is presented. |
| |
| Keywords: | Wave velocity Saturation Attenuation Q |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《地球物理学报》浏览原始摘要信息 |
| 点击此处可从《地球物理学报》下载免费的PDF全文 |
