复杂水网地区多种节点仪混采地震数据质量监控方法

Monitoring method for seismic data quality of multi node instrument hybrid acquisition in complex water network area

近几年节点仪在野外地震数据采集中的应用越来越普及,使用方式也日渐复杂,对地震数据的质量控制也提出了较高的要求。在江苏TJB三维复杂水网地区的节点仪混合采集过程中,面对着独特的数据质量监控的需求,利用现场处理的质量监控手段,对数据监控方法做了分析研究。通过数据顶切检查法来检查节点仪数据切分及组合过程中由于炮点位置、GPS时间、SPS文件等出现错误所引起的数据正确性问题;通过数据回收率统计、重复道检查可以发现多种节点仪混采施工过程中常见的数据丢失或重复的问题并加以解决,现场处理的数据质量监控有力地保障了多种节点仪混合采集地震数据的正确性和完好率。

The application of node instrument in field seismic data acquisition has become more and more popular in recent years,and the use mode is becoming more and more complex,which also puts forward higher requirements for the quality control of seismic data.In the process of node instrument hybrid acquisition in Jiangsu TJB three-dimensional complex water network area,facing the unique demand of data quality monitoring,the data monitoring method is analyzed and studied by using the quality monitoring means of field processing.Check the correctness of data caused by errors in shot point position,GPS time,SPS file,etc.in the process of data segmentation and combination of node instrument by data top muting check method;Through data recovery rate statistics and repeated trace inspection,the common problems of data loss or duplication in the process of mixed mining with multiple node instruments can be found and solved.The data quality monitoring of on-site processing effectively ensures the correctness and integrity of seismic data collected with multiple node instruments.