地表建筑密集区煤田地震资料的针对性处理方法  

Targeted Processing Method of Seismic Data in Coal Field in Densely Built-Up Area

作　　者：齐亮亮 Qi Liangliang(Geological Survey Team,Coal Geology Bureau of Hebei Province,Xingtai,Hebei,054000;Xingtai Key Laboratory of Geophysical Technology,Xingtai,Hebei,054000)

机构地区：[1]河北省煤田地质局物测地质队,河北邢台054000 [2]邢台市地球物理技术重点实验室,河北邢台054000

出　　处：《中国井矿盐》2022年第6期15-19,共5页China Well and Rock Salt

基　　金：河北省科学技术厅基金项目(V1647998930230)。

摘　　要：在地表建筑密集区进行煤田三维地震勘探、地震资料采集时不得不采取大面积特殊观测系统,这就造成炮点分布极不规则,面元属性均一性受到影响,给后期资料处理工作带来很大困难。根据研究区的采集资料特点和要解决的地质任务,分析了采集资料情况,提出了一些针对性处理方法,包括数据规则化、叠后三维随机噪声衰减和频谱拓展等方法。通过在唐山地区某矿区的应用,地震资料的连续性、信噪比、分辨率得到了较大的改善,给后期资料解释工作提供了质量较高的处理数据体。It is necessary to adopt a large area special observation system when conducting 3D seismic exploration and seismic data collection in the surface built-up area,which results in the irregular distribution of shot points and the influence on the homogeneity of surface element attributes,which brings great difficulties to the later data processing work.Based on the characteristics of seismic data in the study area and to solve the geological tasks,analyzes the collected data,puts forward some corresponding treatment methods,including data regularization,post-stack method such as 3D random noise attenuation and frequency spectrum,with the application of a mining area in tangshan region,the continuity,signal-to-noise ratio and resolution of seismic data are improved greatly,It provides a high quality data body for later data interpretation.

关 键 词：建筑密集区 煤田地震资料处理 数据规则化 叠后三维随机噪声衰减 频谱拓展 

分 类 号：TS32[轻工技术与工程]