摘要
地层的Q值与岩石类型、流体类型和流体饱和度有关,零偏VSP资料有信噪比高、分辨率高等优点,用以研究地层的品质因子具有较高的精度。利用零偏VSP资料计算地层的品质因子,目前比较理想的方法是YouliQuan等1997年提出的质心频移法,应用该方法求取了胜利油田垦71井区检41井的地层品质因子,结果表明该方法较为适用、可行。
Since the formation quality factor is related to the rock type,fluid type and fluid saturation,the higher S/N ratio and high-resolution are advantages of zero-offset VSP datathat are used to study the quality factors are of higher accuracy.Now,the better method of estimating quality factors with zero-offset VSP datais centroid frequency shift method presented firstly by Youli Quan in 1997.The method was used in the paper to estimate the quality factors of Jian 41well in Ken 71areaof Shengli oilfield.The results show that the method is adaptive and feasible.
出处
《山东科技大学学报（自然科学版）》
CAS
2010年第5期8-12,共5页
Journal of Shandong University of Science and Technology(Natural Science)
基金
国家高技术研究发展计划("863"计划)项目(2007AA060503)
关键词
零偏VSP
质心频移
品质因子
直达波
频谱
zero-offset VSP data
centroid frequency shift method
quality factors
direct waves
spectrum
