全数字单点采集技术在四川盆地的应用

根据地震勘探采集的要求，合理选用检波器至关重要。利用数字单点检波器频带宽、动态范围大的优势，在四川盆地川西地区开展了系统的试验，获得了比常规模拟检波器采集分辨率高的资料。通过对采集到的模拟检波器和数字检波器地震数据的单炮记录、叠加剖面进行对比分析，认为应用全数字单点采集技术获得的地震资料，不仅单炮原始记录的分辨率比模拟检波器高，而且叠加剖面的波组特征清楚、同相轴连续性好、反射信息丰富。表明全数字单点采集技术有很好的应用前景。

Point receiver acquisition with single digital sensor in Sichuan Basin

According to seismic acquisition requirements, receiver sensor selection is every important. Newly developed digital sensor is characterized by wider bandwidth and larger dynamic range.Therefore we have carried out a test point receiver acquisition with single digital sensor in the western region of Sichuan Basin. The comparison between both single shot records and stacked sections demonstrates that seismic data acquired by single digital sensor has better event continuity, clearer reflection characteristics, higher resolution, and more information than data acquired by conventional geophones. This suggests point receiver acquisition with single digital sensor may have very good application prospect in the future.