杨营煤矿岩浆岩侵入煤层速度反演方法及效果  

Velocity Inversion Technique and Effect of Coal Seams by Igneous Invasion in Yangying Coal mine

作　　者：夏银玲 朱鲁[1] 曾爱平 

机构地区：[1]山东科技大学地质科学与工程学院,山东青岛266590 [2]山东省煤田地质局,山东泰安271000

出　　处：《山东煤炭科技》2014年第1期163-164,173,共3页Shandong Coal Science and Technology

摘　　要：本文以杨营矿实际地震资料为基础,研究了岩浆岩侵入煤层速度反演方法及效果。由于传统的速度分析方法是在均匀介质或水平层状介质的前提下借助Dix公式,有一定的局限性,故建立的速度场精度低,不能真实反映地层速度。本文结合杨营矿岩浆岩侵入、煤层厚度沉积不稳定等因素,详细阐述了CMP相干反演射线追踪方法及其速度反演流程,通过沿层速度反演效果分析,并利用煤层速度的变化区带刻画,为研究岩浆岩对3煤层的影响程度提供了依据。This paper is based on actual seismic data from Yangying Coalfield .The authors studied velocity inversion method and effect of coal seams by igneous invasion.As traditional velocity analysis of uniform medium or horizontal layered medium use Dix formula ,there are some limitations and Established velocity field has a Low-precision which can’t reflect the formation velocity.According to coal seams by Igneous Invasion and the instability of seams thickness and other actors ,this paper r expounded CMP coherent velocity inversion technique and the process of coherent velocity inversion.We use the analysis of velocity inversion changes in the velocity of the coal seam zone which help us research the influence of igneous invasion for No.3 coal seam.

关 键 词：岩浆岩侵入 CMP相干反演 层速度反演 

分 类 号：TD163.1[矿业工程—矿山地质测量]