引用第1楼jqsj于2008-11-17 19:11发表的 :
电缆声波测井和随钻声波测井,从原理和测井结果上有哪些区别?谢谢
This post is about case hole cement evaluation.
As for sonic logging in open hole, there are huge difference in terms of signal quality and processing techniques used for wireline and LWD sonics. Wireline sonicdata quality is much better and LWD data. But since LWD sonic has real time DT and saves time, it is a better choice in certain applications. LWD sonic is a very important tool for pore pressure prediction application.