陆上高分辨率地震勘探检波器性能及参数选择分析
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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.
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.
引文
1董世学,张春雨．地震检波器的性能与精确地震勘探 [J]．石油物探,2000,39(2):124-130
2付清锋,周明．地震检波器的进展[J]．石油仪器,2000, 14(2):25-27
3吴顺和,吴邕．检波器运动方程的解及其意义[J]．大庆 石油学院学报,1999,23(1):8-12
4常子恒．石油勘探开发技术[M]．北京:石油工业出版 社,2001．1-78
5王增明．地震采集中检波器自然频率的试验分析[J]．石 油地球物理勘探,2003,38(3):308-316
6乔大军,孟祥顺,张玉斌,等．检波器的联接方式对地震 资料品质的影响[J]．石油地球物理勘探,2001,36(6): 723-728
7蒋连斌,马振轶,马恩军．检波器连接方式的选择[J]．大 庆石油地质与开发,1998,17(4):43-44
8曹菁．适合高分辨率勘探要求的检波器[J]．石油仪器, 1998,12(6):31-33
2付清锋,周明．地震检波器的进展[J]．石油仪器,2000, 14(2):25-27
3吴顺和,吴邕．检波器运动方程的解及其意义[J]．大庆 石油学院学报,1999,23(1):8-12
4常子恒．石油勘探开发技术[M]．北京:石油工业出版 社,2001．1-78
5王增明．地震采集中检波器自然频率的试验分析[J]．石 油地球物理勘探,2003,38(3):308-316
6乔大军,孟祥顺,张玉斌,等．检波器的联接方式对地震 资料品质的影响[J]．石油地球物理勘探,2001,36(6): 723-728
7蒋连斌,马振轶,马恩军．检波器连接方式的选择[J]．大 庆石油地质与开发,1998,17(4):43-44
8曹菁．适合高分辨率勘探要求的检波器[J]．石油仪器, 1998,12(6):31-33
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