浅谈煤田地震勘探中影响纵向分辨率的主要因素  

A Simple Explanation of Primary Longitudinal Resolution Affecting Factors in Coalfield Seismic Prospecting

作　　者：何黄生[1] 刘茂争 马玉生[2] 张玉良[2] 沈骥千[2] 

机构地区：[1]中国矿业大学资源与地球科学学院,江苏徐州221008 [2]江苏煤炭地质物测队

出　　处：《中国煤炭地质》2008年第5期61-64,共4页Coal Geology of China

摘　　要：针对野外数据采集参数对分辨率的影响,对资料处理过程中静校正、反褶积、速度分析、Q补偿及谱白化等几个重要模块原理进行分析,指出在高速岩层中数据采集,应采用小药量激发,小道距,小排列,全三维,不组合、单点数字检波器接收。高密度多点采集,能够充分保护有效地质信息的高频成份,在更大范围内满足高分辨地震勘探的要求。资料处理过程中,在保证同相叠加和高信噪比的前提下,采用提高分辨率的模块以弥补地震波在传播过程中损失的高频成份。实践证明通过高保真、宽频带数据采集和高信噪比前提下的高分辨率数据处理,完全能够为矿井采掘提供高精度地震勘探资料。In allusion to field data acquisition parameters affect the resolution, analyzed some important module principles such as statics, deconvolution, velocity analysis, Q-compensation and spectrum whitening etc. in data processing courses, pointed out small charge shot, small group interval, small anlay, true 3D, non-anlaying, single-shot digital wave detectors should be used in high velocity strata data acquisition. High density multipoint acquisition can fully protect high-frequency components in effective geological information, satisfying high resolution seismic prospecting requirement in larger extent. During data processing, under preconditions of inphase stacking and high signal-noise ratio, use modules can improve resolution to fetch up losing high-frequency components on path of seismic waves. Practices demonstrated that through high fidelity, wide band data acquisition and high resolution data processing under above preconditions, high precision seismic prospecting information can fully provide to mine extraction.

关 键 词：数据采集 静校正 反褶积 速度分析 谱白化 Q补偿 高分辨率地震勘探 

分 类 号：P631.4[天文地球—地质矿产勘探]