摘要
地震检波器的性能是高分辨率地震数据采集中的一个重要因素,对资料的品质影响很大。为此,从检波器的振动方程出发,对高分辨率地震检波器性能指标(如自然频率、阻尼系数、灵敏度、谐波失真、假频等)以及检波器组合的连接方式对地震资料品质的影响进行了分析。对不同型号检波器的性能以及检波器不同组合方式的对比试验和应用效果进行了分析,提出了适合高分辨率地震检波器的性能指标,指出合理地选择检波器类型和检波器的连接方式,能提高地震资料的信噪比和分辨率。最后,对数字检波器和模拟检波器采集的资料,从能量、频宽、品质等方面进行了分析,结果表明,数字检波器的资料总体高于模拟检波器。
As the high-resolution seismic technology goes ahead further, the geophone property has been becoming a bottleneck factor, which limits its progress. Based on the geophone vibration formula, this paper presents the affective factors to the seismic data from high-resolution geophone arrays and its main property specifications, such as natural frequency, damping coefficient, sensitivity, harmonic distortion, and alias. It elucidates the importance of geophone property and its array in high-resolution seismic survey by analysis to the contrast test and application of the different geophone properties and arrays in recent land high-resolution surveys. It also gives out the proper ranges of high-resolution geophone's specifications and its reasonable arrays to improve the signal-to-noise ratio and resolution.
出处
《石油物探》
EI
CSCD
2005年第6期640-644,共5页
Geophysical Prospecting For Petroleum
关键词
检波器性能
检波器组合
分辨率
自然频率
信噪比
幅频响应
geophone property
geophone array
resolution
natural frequency
signal-to-noise ratio
spectrum response
作者简介
梁运基（1965-）,男,高级工程师,博士在读,现主要从事高分辨率地震勘探等方法研究工作.
