零偏VSP资料质心频移法在胜利油田Q值反演中的应用研究  

Application Study on Centroid Frequency Shift Method of Zero-offset VSP Datain Quality Factor Reversion of Shengli Oilfield

作　　者：乔玉雷[1] 

机构地区：[1]中国石化胜利油田分公司物探研究院,山东东营257000

出　　处：《山东科技大学学报（自然科学版）》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)

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.

关 键 词：零偏VSP 质心频移 品质因子 直达波 频谱 

分 类 号：P315.61[天文地球—地震学]