银额盆地西部地震勘探试验研究进展及效果  

Advances and performance of seismic exploration experiments in the western Yin′e Basin

作　　者：王兴宇 刘艳丽 王通 荣立新[1,2] WANG Xing-Yu;LIU Yan-Li;WANG Tong;RONG Li-Xin(Institute of Geophysical and Geochemical Exploration,Chinese Academy of Geological Sciences,Langfang 065000,China;National Center for Geological Exploration Technology,Langfang 065000,China)

机构地区：[1]中国地质科学院地球物理地球化学勘查研究所,河北廊坊065000 [2]国家现代地质勘查工程技术研究中心,河北廊坊065000

出　　处：《物探与化探》2024年第6期1599-1608,共10页Geophysical and Geochemical Exploration

基　　金：中国地质调查局项目“区域基础地球物理调查”(DD20221638);中央级公益性科研院所基本科研业务费项目“基于Curvelet变换地震数据中强多次反射折射噪音压制方法研究”(AS2020J02)、“长江下游地区地震正演模拟与观测系统评估”(AS2020J03)。

摘　　要：为提高银额盆地上古生界地震探测效果,以银额盆地西部居延海坳陷为试验区,调研了该区以往地震采集特点及资料处理技术现状,开展了地震野外采集试验和室内处理攻关,探索总结了银额盆地上古生界的地震探测技术。结果表明,该区地震激发应因地制宜采用井炮及可控震源相组合的方式;接收方面应首先满足排列长度的前提下再考虑增加接收密度;采取配套的各向异性处理、谱约束反褶积、楔形变换自适应去噪等针对性处理技术可有效提升深层地震成像质量。本研究为相似地区开展工作提供了经验和借鉴。This study aims to improve the seismic exploration effects in the Upper Paleozoic strata of the Yin′e Basin.With the Juyanhai depression in the western Yin′e Basin as an experimental area,it investigated the previous seismic acquisition characteristics and current data processing techniques of the area.Through field seismic acquisition experiments and data processing research in the laboratory,it explored and summarized the seismic exploration techniques for the Upper Paleozoic strata in the Yin′e Basin.Key findings are as follows:(1)The combination of shot holes and seismic vibrators is recommended for seismic excitation in the area according to local conditions;(2)The receiving array length takes precedence over the receiving density;(3)Targeted processing techniques including anisotropy processing,spectral-constrained deconvolution,and wedge transform adaptive denoising can effectively improve the quality of deep seismic imaging.This study provides a reference for relevant research in similar areas.

关 键 词：地震勘探 上古生界油气 地震资料处理 银额盆地 居延海坳陷 

分 类 号：P631.4[天文地球—地质矿产勘探]