新的声波二次定位技术在海底电缆地震勘探的应用

A new acoustic secondary positioning in the OBC seismic prospecting

由于海底电缆地震资料采集的特殊性,在采集作业中得到检波器的精确位置特别重要,它直接关系到地震勘探的质量,声波二次定位技术的应用就是为了测定海底电缆地震勘探作业中铺放到海底的检波器的位置.近年来,该技术由于在定位方法、操作流程上的改进,使得定位精度明显提高,所以被广泛应用于海底电缆地震勘探作业.文章介绍了新的声波二次定位技术的声波数据采集方法、处理方法、内插计算,通过分析多个海底电缆工区的应用效果,总结了新的声波二次定位技术应用的经验.最后针对新的声波二次定位技术的使用提出了一些建议,以供同行参考.

Due to the particularity of the Ocean Bottom Cable seismic data acquisition, to get the accurate position of detectors in the acquisition work is particularly important, which is directly related to the quality of the seismic exploration, application of the acoustic secondary positioning is to measure the accurate position of detectors on the bottom of the sea. In recent years, due to the improvement of this technology in the positioning method and operation process, the positioning accuracy is obviously improved, so it is widely used in OBC seismic exploration. This paper introduces the new methods of acoustic data acquisition, processing and calculation of interpolation, and by analysis the application effect of some areas of OBC acquisition, summarized some experiences in application of the new acoustic secondary positioning. At the end of this paper, we provide some suggestions about using the new acoustic secondary positioning, for reference.