Liu Yukai, Smeulders David, Su Yuanda, Tang Xiaoming
School of Geosciences, China University of Petroleum (East China), Qingdao, China
Department of Mechanical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands
J Acoust Soc Am. 2018 Jan;143(1):EL13. doi: 10.1121/1.5020261.
The seismoelectric interface electromagnetic characteristics have been studied for the finite offset Vertical Seismoelectric Profiling (VSEP) configuration. The approach consists of theoretical modeling and laboratory verification. The results show that the wave variation characteristics along the finite offset measurement line are markedly different from those along the zero-offset line. More interestingly, the wave characteristics for both configurations can be satisfactorily explained by the electric dipole model for the seismoelectric interface wave radiation. Besides, the experiment confirms the modeling result based on the seismoelectric coupling theory and validates the VSEP technique as an effective method for subsurface interface delineation.
针对有限偏移距垂直地震电测深（VSEP）配置，研究了震电界面电磁特性。该方法包括理论建模和实验室验证。结果表明，沿有限偏移距测量线的波变化特征与沿零偏移距线的波变化特征明显不同。更有趣的是，两种配置的波特征都可以用电偶极子模型对震电界面波辐射进行令人满意的解释。此外，实验证实了基于震电耦合理论的建模结果，并验证了VSEP技术作为一种有效的地下界面探测方法的有效性。
