基于弹性波动力学的检波器-介质耦合系统研究

检波器与介质之间的耦合作用是影响地震记录质量的关键因素。基于弹性波动力学理论,开展了检波器-介质耦合问题研究,构建了耦合系统模型。通过弹性波动力学理论模型与传统振动力学理论模型对比,揭示了介质、检波器条件对耦合响应的影响以及不同理论模型的差异，提出将波动模型与振动模型数据进行融合的方法。通过融合数据与实际地震数据对比,探讨了结合波动理论与振动理论解决实际耦合问题的可行性。

The coupling effect between geophones and media plays a key role in data acquisition during seismic exploration.This paper introduces a study on coupling problem based on elastic wave dynamics.By building coupling model and comparing the outputs with the simulating results from vibration mechanics model,we illustrate how different media or geophone conditions affect the coupling responses and what differences is between two models.A method combining the data from elastic model with the data from vibration mechanics model is proposed next,and the feasibility of implement is also discussed through comparing with real seismic data.

国家高技术研究发展计划(863计划)项目(2013AA064202)资助。