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

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.