...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>First Break >GeoStreamer - increasing the signal-to-noise ratio using a dual-sensor towed streamer
【24h】

GeoStreamer - increasing the signal-to-noise ratio using a dual-sensor towed streamer

机译：GeoStreamer-使用双传感器拖缆提高信噪比

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Seismic exploration today and in the future will require looking for deeper reservoirs, under more complex overburden andwithin increasingly complex stratigraphic traps. To be able to image these reservoirs well, the bandwidth of the seismic datamust be extended at both low and high frequencies and an improvement in signal-to-noise ratio is also required. A newdual-sensor streamer was launched in 2007 and has since been deployed in 2D mode in several basins worldwide. The first3D dual-sensor streamer survey at the DeSoto Canyon in the Gulf of Mexico was completed in early 2009. The combineddual-sensor data from the GeoStreamer are superior to the data recorded using a conventional towed streamer in two ways.Elimination of receiver ghosts provides a much clearer, higher resolution image and, due to the ability to tow deeper, thestronger low reflection signal frequencies and the weaker swell noise result in greater penetration. A gain of 10-15 dB insignal-to-noise ratio is achievable for the low frequencies when the streamer is towed at a depth of 15-30 m.
机译：当前和将来的地震勘探将需要在更复杂的覆盖层和日益复杂的地层圈闭中寻找更深的储层。为了能够很好地对这些储层进行成像，必须在低频和高频下都扩展地震数据的带宽，并且还需要提高信噪比。一种新型双传感器拖缆于2007年推出，此后已在全球多个盆地以2D模式部署。墨西哥湾DeSoto峡谷的首个3D双传感器拖缆勘测于2009年初完成。GeoStreamer的双传感器组合数据在两个方面均优于使用常规拖缆的记录数据。消除了接收器重影更清晰，更高分辨率的图像，并且由于具有更深的拖曳能力，较低的反射信号频率更强，并且较弱的膨胀噪声会导致更大的穿透力。当拖缆以15-30 m的深度拖曳时，低频可获得10-15 dB的信噪比增益。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 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