Xu-White模型预测横波速度的不确定因素分析  

Uncertainty of shear wave velocity prediction by Xu-White model

作　　者：石双虎[1] 邓志文[1] 刘丽萍[1] 周恒[1] 李毕民 郭桂红[2] 

机构地区：[1]中国石油集团东方地球物理勘探有限责任公司,河北涿州072751 [2]兰州大学土工工程与力学学院,甘肃兰州730000

出　　处：《煤田地质与勘探》2015年第5期95-99,共5页Coal Geology & Exploration

摘　　要：自Xu和White(1995)建立了泥质砂岩的有效介质模型(Xu-White模型)后,很多地球物理学者用此模型或改进的模型进行岩石横波速度的预测,但至今很少有人对Xu-White模型预测过程中的不确定因素进行详细总结。介绍了Xu-White模型及其预测流程;对预测过程中的不确定因素进行了分析,指出在使用中可以根据实际地质情况合理的取舍参数,从而能更有效地进行纵横波速度预测。Since Xu and White established the effective medium model about sand-clay rock(Xu-White model) in 1995, many geophysicists have predicted shear velocity by this model and its improved model. But few of them have made detailed review of the uncertain factors in the process, this paper firstly introduced the Xu-White model and its prediction flowchart, and then made a detailed analysis on the uncertain factors in the process of prediction, which can make researchers choose more reasonable parameters to predict more effectively shear velocity according to the actual geological conditions.

关 键 词：横波预测 测井 XU-WHITE模型 孔隙度 弹性模量 孔隙纵横比 

分 类 号：P631[天文地球—地质矿产勘探]