摘 要:在地震检波系统中,地表测量的主要目的在于接收地表的振动,而不是检波器外壳的振动,但受到技术条件的限制,目前应用的检波器都因耦合响应而影响了地震数据的保真度。本研究参考了国内外大量的研究文献,简要介绍了一种检波技术的设计思路、振动力学以及测量结果的模态参数,并通过分析耦合响应对地震数据的影响,探讨了相应的衰竭方法,即解耦反褶积。
关键词:检波器;耦合响应;野外规模测量;反褶积
中图分类号:P631.436 文献标识码:A 文章编号:2096-4706(2018)07-0097-02
GeophoneField Scale Measurement and Attenuation Method forGeodetic Coupling Response
SONG Wei
(Geophysical Exploration Center,China Earthquake Administration,Zhengzhou 450002,China)
Abstract:In the seismic detection system,the main purpose of the surface measurement is to receive the vibration of the earth’s surface rather than the vibration of the geophone shell,but the current geophone has affected the fidelity of the seismic data due to the restriction of the technical conditions. This study refers to a large number of research documents at home and abroad. The design idea of the detection technique,the vibration mechanics and the modal parameters of the measurement result are introduced,and the corresponding failure method,that is,thedecoupling deconvolution,is discussed by analyzing the influence of the coupling response on the seismic data.
Keywords:geophone;coupling response;field scale measurement;deconvolution
参考文献:
[1] 于富文,魏继东,冯玉苹,等. 检波器耦合响应定量分析方法及应用 [J]. 石油地球物理勘探,2016,51(1):27-31.
[2] 于富文,魏继东,冯玉苹. 检波器——大地耦合响应对地震数据的影响 [J]. 地球物理学进展,2017,32(1):339-343.
[3] 邹志辉,张翊孟,卞爱飞,等. 常规检波器低频数据的评价与恢复及其在地震成像中的应用 [J]. 石油地球物理勘探,2016,51(5):841-849.
[4] 罗福龙,夏颖. 地震检波器检测技术探讨 [J]. 石油物探,2013,52(6):617-622.
[5] 吕公河. 地震勘探检波器原理和特性及有关问题分析 [J].石油物探,2009,48(6):531-543.
作者简介:宋威(1986-),男,汉族,河南郑州人,助理工程师,本科,研究方向:地震仪器研发与数据采集。