电—渗透测量 (ＥＯＳ) ,如同电磁地震勘探一样 ,也是在电动力学转换效应基础之上发展起来的一种新的地理物理测井技术。根据广义的Ｂｉｏｔ理论 ,当激发源天线于地下产生一个与时间有关的电场时 ,这种电场将产生一个电—渗透压力梯度。该压力梯度仪依次把应力传递给岩石—流体 Electro-osmometry (EOS), like electromagnetic seismography, is also a new geophysical logging technique developed on the basis of electrodynamic transformation effects. According to the generalized Biot theory, an electric-osmotic pressure gradient is created by this electric field when the excitation source antenna generates a time-dependent electric field underground. The pressure gradient meter in turn transmits the stress to the rock-fluid