煤炭高密度三维地震勘探方法及应用  

Method and application of high density 3D seismic coal exploration

作　　者：刘胜[1] 程增庆[2] 代凤红 王秀荣[2] 

机构地区：[1]中国矿业大学(北京),北京100083 [2]中国煤炭地质总局地球物理勘探研究院,河北涿州072750 [3]中国煤炭地质工程总公司,北京100073

出　　处：《煤炭工程》2009年第3期67-68,72,共3页Coal Engineering

基　　金：国家重点基础研究发展计划(973计划)项目(2006CB202209)

摘　　要：煤炭高密度三维地震勘探方法是在煤炭机械化采煤对地质成果高精度的要求下而展开的研究。通过高密度三维地震资料成像质量与空间采样密度、观测系统参数的关系的研究,提出了高密度采集的方法,在精细处理和叠前时间偏移处理技术方面展开了高密度数据处理的研究,发展了高密度三维地震资料的多属性解释技术。研究表明:高密度三维地震地震成果剖面上的煤层波频带宽度达到200Hz以上,煤层波的主频为110Hz,有效地识别出了2m落差的断层。The high density 3D seismic exploration method of coalfield was studied at the requirements of high accurate geological result by the mechanized coal mining. With the study on the relationship between the image quality of the high density 3D seismic information, space sampling density and observation system parameters, the paper provide the high density acquisition method. A study on the high density data processing shall be conducted for the fine treatment and the deviation treatment technology before the stacked. Multi attribute explanation technology of the high density 3D seismic information was developed. The case study showed that the seam frequency band width on the cross section of the high density 3D seismic achievement could be reached to over 200Hz and the main frequency of the seam wave could be 110Hz, which could be effectively to identify a fault with a drop of 2m.

关 键 词：高密度 三维地震 煤层波 

分 类 号：P631.44[天文地球—地质矿产勘探]