首页> 中文期刊> 《石油物探》 >独立同步激发数据两步法邻炮干扰压制技术研究

独立同步激发数据两步法邻炮干扰压制技术研究

         

摘要

Quality of seismic data depends on the fold to some degree. Higher fold means higher cost. In order to solve this problem, vibroseis independently simultaneous shooting (ISS), as a representative of high-productivity acquisition techniques, has been widely used. However, ISS may cause strong neighboring-shot interference, which should be suppressed in data processing. We analyzed the characteristics of ISS neighboring-shot interference and its distribution in detail, and discovered that neighboring interference changes via the gathers. So multi-domain multi-step de-noising should be carried out. By data analysis and processing testing, a two-step suppressing method was proposed, that is by separately a-dopting strong-amplitude frequency-division suppressing and median-filtering technique to suppress the neighboring-shot interference. A good result has been achieved in actual application.%地震资料品质在很大程度上取决于覆盖次数的高低,而覆盖次数的提高必然会带来勘探成本的增加.为了解决这一难题,以可控震源独立同步激发(ISS)为代表的新一代高效采集技术得到了推广应用,极大地提高了生产效率.但ISS技术会产生很强的邻炮干扰,需要在资料处理中予以压制.较详细地分析了ISS资料邻炮干扰的特点和分布规律,发现邻炮干扰在不同道集中有不同的表现形式,因此需要进行多域分步压制.通过资料分析和处理试验,提出了两步法压制邻炮干扰的处理流程,即分别采用强振幅分频压制技术和中值滤波技术来实现ISS数据中邻炮干扰的压制,并在实际资料处理中得到了很好的应用效果.

著录项

相似文献

  • 中文文献
  • 外文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号