叠前深度偏移技术在煤炭地震勘探中的应用  

Application of Prestack Depth Migration Technology in DJ Mine

作　　者：刘俊 孙宇菲[2] LIU Jun;SUN Yufei(Huainan Coal Industry Group,Huainan Anhui 232000;Research Institute of Coal Geophysical Exploration of China National Administration of Coal Geology,Zhuozhou Hebei 072750)

机构地区：[1]淮南矿煤业集团煤业分公司,安徽淮南232000 [2]中国煤炭地质总局地球物理勘研究院,河北涿州072750

出　　处：《河南科技》2020年第1期70-72,共3页Henan Science and Technology

基　　金：淮南矿业(集团)有限责任公司科研及技术创新计划项目“井巷约束下三维地震数据体高精度成像技术研究”。

摘　　要：叠前深度偏移技术是解决速度变化地区和复杂构造地区成像的最佳技术方法。因此,本文主要分析叠前深度偏移技术在煤炭地震勘探中的应用。叠前深度偏移的关键是建立好深度域速度模型,再利用矿井资料和深度域构造模型进行约束,从而提高深度偏移的成像精度。叠前深度偏移能提供精确的构造成像,进而提高煤层的地质构造解释精度,为煤矿安全、高效生产提供保障。Prestack depth migration technology is the best technology to solve the imaging problem in velocity changing area and complex structure area.Therefore,this paper mainly analyzed the application of prestack depth migration technology in coal seismic exploration.The key of prestack depth migration is to establish velocity model in depth domain,and then use well data and structure model in depth domain to constrain,so as to improve the imaging accuracy of depth migration.Practice shows that prestack depth migration can provide accurate structural imaging,and then improve the accuracy of geological structure interpretation of coal seams,and provide guarantee for the safety and efficient production of coal mines.

关 键 词：煤田 Kirchhoff积分法叠前深度偏移 断裂 

分 类 号：P631.4[天文地球—地质矿产勘探]