声波和密度测井资料的井径校正

Borehole diameter correction for acoustic and density logging data.

本文以斯伦贝谢(Schlumberger)公司的密度测井资料的井径校正图板为基础,采用几何因子法对其进行数学拟合,得到一个具有明确物理意义的、较为理想的井径校正公式。其后,详细地分析了单发双收声速测井资料受井径影响的物理机制,在此基础上提出了相应的校正公式及校正图板。最后,附以实例分析校正的效果。

A quite ideal borehole diameter correction formula which has definite physical meanings has been developed by adopting geometrical factor method to make math- ematical fitting of Schlumberger Corporations borehole diameter correction chart for density logging data.Then the authors analyse the physical mechanism of how borehole diameter affects the velocity logging data which are collected by using the logger that has one transmitter and two receivers.Then corresponding correction formula and correction chart are given in the paper.Finally,the correction effect is illustrated here.