东营城区地震数据采集质量控制与评价

Quality control and evaluation of seismic data acquisition in Dongying city proper.

1. 中国地质大学,北京10083;2. 中国石化集团胜利石油管理局地球物理勘探开发公司,山东东营257100

China Universtiy of Geosciences,Beijing 10083 China

在现代城区进行地震采集,由于大量物理点位偏移、多次观测系统设计和多次测量等原因,使得质量控制存在诸多的难点,为此对东营城区地震数据采集质量控制与评价进行了研究,分析了东营城区地震数据采集质量控制的难点,形成了一套适合在城区开展地震数据采集的质量控制与评价体系。首先利用相应的软件对东营城区地震数据采集进行物理点坐标精度、面元重合的物理点、观测系统进行控制,以实现城区物理点位精度的控制；其次采取数字化数据流系统管理,实现数据的实时更新和质量的动态监控；最后利用实时覆盖次数分析,保证资料品质。在东营城区,采用该地震数据采集质量控制与评价方法,确保了采集数据的准确性,得到了高保真的地震资料,满足了后期室内校正和资料处理的需要。

In the process of seismic acquisition in modern city proper, there have a lot of difficulties in quality control because of the mi-gration of physics sites,numerous layout designs and surveys.So the quality control and evaluation of seismic data acquisition in Dongying city proper is researched and analyzed.A set of seismic data quality control and evaluation system suitable for modem cities is developed.First,the relevant software is used to control coordi-nate,binning coincident physics sites and layout,to realize the control over the precision of physical site in the city proper.Then, digital data flow system management is adopted to realize the real-time update of data and the dynamic control over quality.Finally, real-time folds analysis is used to ensure the quality of data.In Dongying city proper,the method is used to ensure the accuracy of data acquisition and obtain underground geological data with high fidelity,which meets the needs of interior static and data process-ing at later stage.