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Influence from Shooting and Receiving Conditions of Broadband Signals on Seismic Data
Author(s): SUN Junhe, ZHANG Yusheng, XU Zhanfeng, WANG Xinqing
Pages: 1-
6
Year: 2015
Issue:
3
Journal: Petroleum Instruments
Keyword: 宽频信号; 重锤行程; 伺服阀; 空间采样率; 检波器响应;
Abstract: 得益于宽频信号对地震资料的改善,随着“两宽一高”技术的推广应用,地震勘探中人们越来越多地采取宽频激发.可是盲目地增加激发频宽,有时会事与愿违,并不能带来地震资料的改善.实际上,要想得到有效的宽频信号,必须根据目的层的要求综合考虑激发条件、接收条件、大地介质条件和处理方法这四个要素的影响,针对性地选取合适的激发、接收参数并采用适当的处理手段才能有效地扩展地震资料的频宽,从而提高地震勘探的精度.文章分析了几个实例来验证宽频信号的激发、接收条件对地震资料的影响.
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