摘要
利用波阻抗反演技术,对袁大滩井田煤层顶板岩性进行岩石物理分析。分析结果显示,纵波阻抗对于煤层、中粗粒砂岩和细粉砂岩具有较强的分异能力,因此,可以利用约束稀疏脉冲反演技术获得纵波阻抗数据体对煤层顶板的岩性进行预测。应用效果表明,波阻抗反演技术能较好地识别中粒砂岩和细粉砂岩。
Rock physical analysis of roof lithology of Yuandatan Mine was carried out by wave impedance inversion technology.The analysis results showed that the longitudinal wave impedance had strong differentiation ability for coal seam,medium coarse grained sandstone and fine siltstone.Therefore,the constrained sparse pulse inversion technique can be used to obtain the lithology of coal seam roof by the P-wave impedance data body.The application results showed that wave impedance inversion technology can identify middle grain sand and fine siltstone.
作者
汤红伟
Tang Hongwei(CCTEG Xi＇an Research Institute, Xi＇an, Shaaxi 710077, China)
出处
《中国煤炭》
2018年第7期49-53,共5页
China Coal
基金
中煤科工集团西安研究院有限公司科技创新基金项目(2014ZD012
2016XAYMS24)
关键词
波阻抗反演
煤层顶板
岩性
wave impedance inversion
coal seam roof
lithology
