沃尔什函数在测井资料反演中的降维作用  

Dimension Reduction Effect of Walsh Function in the Well Logging Data Inversion

作　　者：钱勇先[1] 胡文祥[1] 

机构地区：[1]江汉石油学院地球物理勘探系

出　　处：《江汉石油学院学报》1994年第3期29-32,共4页Journal of Jianghan Petroleum Institute

摘　　要：研究了沃尔什函数在测井资料反演中降低反演维数的原理和方法。当地层为层状介质且最小层厚大于或等于两个深度采样间隔时，该函数具有降维作用且无需知道地层的层数及每层厚度。实例计算表明，这种降维方法使测井资料高分辨率反演成为可能。The principle and the methodology of Walsh function decreasing the unknowns and reducing the dimensions in well logging data inversion are studied. With Walsh function the inversion dimensions can be greatly reduced without the knowledge of the number and thickness of examined beds, when the beds are laminated and their minimal thickness is equal to or more than two depth intevals. An example presented in the paper demonstrates that this reduction of dimension makes the high-resolution inversion of the normal well logging data possible.

关 键 词：测井 测井数据处理 反演 沃尔什函数 

分 类 号：P618.84[天文地球—矿床学]