公开(公告)号：US06842697B1

公开(公告)日：2005-01-11

申请号：US09936790

申请日：2000-03-15

申请人： John William Aiden Millar ,  Richard Hedley Clarke ,  William Peter Stuart-Bruges

发明人： John William Aiden Millar ,  Richard Hedley Clarke ,  William Peter Stuart-Bruges

IPC分类号： G01V3/26 ,  G01V3/00 ,  G01V3/18

CPC分类号： G01V3/265

摘要： A method and apparatus for measuring the properties such as permeability of the rock surrounding a borehole in which a directional seismic or sonic signal is generated downhole and propagated into the surrounding formation to generate an electrokinetic signal and the focus of the seismic signal is moved in three dimensions in the surrounding rock by physically moving the source or by having two seismic sources which generate oscillating seismic signals at different frequencies and the focus of the seismic signal is varied by wave interference or wave interaction.

摘要翻译： 用于测量诸如围绕钻孔的岩石的渗透性的特性的方法和装置，其中定向地震或声音信号在井下生成并传播到周围地层中以产生电动信号，并且地震信号的焦点在三个 通过物理移动源或通过具有两个产生振荡的地震信号在不同频率的地震信号并且地震信号的焦点由波浪干扰或波浪相互作用而变化的周围岩石的尺寸。