组合检波器的响应特性及效果试验

石油地震勘探中,通常采用组合检波器提高地震信号的接收能力。就电气技术特性而言,组合后的检波器具有不同于检波器芯体的响应特性。实际采集作业中,一般只关注组合检波器在接收能力上的改善,却很少顾及组合后响应特性的变化。本文以检波器的原理结构为基础,以现场试验数据为依据,系统地介绍和分析了组合检波器响应特性的变化规律和特点,及其对地震数据采集的影响。

Response characteristics and effect tests of goephone arrays

In order to receive better quality signals,geophone arrays are usually used to acquire seismic waves in petroleum seismic prospecting.Geophone array response attributes are different from those of single geophone in terms of electrical characteristics.Improvement of geophone array’s receiving ability is usually emphasized,but response attributes are ignored.Based on geophone structure and field test data,this paper introduces the principle & characteristics about the change of geophone array response attributes and discusses effects of geophone array response attributes on seismic data acquisition.