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李洪奇，刘洪，李幼铭．井间电磁场伪地震波场成像方法．测井技术，１９９９，２３（２）：１２０～１２２描述了井间电磁波场到伪地震波场的转换理论和方法，采用地震波的射线理论和射线方法完成了伪地震波场的速度成像。当介质磁导率恒定时，伪地震波场的速度与介质电导率的平方根成正比。因此，伪地震波场的速度图像实际上反映了介质的电学特性。
Li Hongqi, Liu Hong, Li Youming. Pseudo-seismic wave field imaging method of crosswell electromagnetic field. Logging Technology, 1999,23 (2): 120-122 describes the theory and method for the conversion of the crosswell electromagnetic field into the pseudo-seismic wavefield. The velocity imaging of the pseudo-seismic wavefield is accomplished by using the ray theory of the seismic wave and the ray method. When the medium permeability is constant, the velocity of the pseudo-seismic wave field is proportional to the square root of the medium conductivity. Therefore, the velocity image of the pseudo-seismic wave field actually reflects the dielectric properties of the medium.