摘要
在使用大炮检距采集地震数据时,地震波传播的各向异性问题表现得尤为突出。本文从分析各向异性的概念、类型入手,对地震波各向异性的速度特征、速度分析原理及应用效果进行了研究。在此基础上引入各向异性介质模型,提出各向异性参数的具体估算方法,并利用该方法进行了实际资料测试。测试结果和常规速度分析结果对比表明,各向异性速度校正的效果明显。
When using large offsets to acquire seismic data,the anisotropy in seismic wave propagation becomes a serious problem.By firstly analyzing concept and types of the anisotropy,the velocity characteristic of anisotropy,velocity analysis principle and application effects were studied in this paper,based on the analysis and studies,the anisotropic medium model was introduced,the exact estimation method for the anisotropic parameters was proposed,and then the method was utilized to conduct testing for field datasets.The comparison of testing results and routine velocity analysis results demonstrated obvious effects of the anisotropic velocity correction.
出处
《石油地球物理勘探》
EI
CSCD
北大核心
2010年第4期525-529,共5页
Oil Geophysical Prospecting
