三维地震解释技术在黄土塬矿区中的应用  

Application of three-dimensional seismic interpretation technology in Huangtuyuan mining area

作　　者：乔会 霍超 王辉 孙亚岳 Qiao Hui;Huo Chao;Wang Hui;Sun Yayue(Shaanxi Coalfield Geophysical Prospecting and Surveying Co.,Ltd.,Xi’an 710005,China;Shaanxi Zhengtong Coal Industry Co.,Ltd.,Xianyang 713699,China)

机构地区：[1]陕西省煤田物探测绘有限公司,陕西西安710005 [2]陕西正通煤业有限责任公司,陕西咸阳713699

出　　处：《煤炭与化工》2022年第10期43-45,共3页Coal and Chemical Industry

摘　　要：基于三维地震数据体,通过时间剖面、属性切片等技术方法对主要煤层的构造、起伏形态、煤厚及煤层缺失边界等进行分析,为煤矿高效生产提供地质保障。本文勘探区内煤层的底板整体为一条NE向的向斜褶曲,在其两翼发育有多条次一级背向斜褶曲,煤层倾角在主向斜的南翼变化较大,北翼倾角相对平缓;发现落差小于5 m的断层有2条,落差大于5 m小于10 m的断层有4条,落差大于10 m的断层有3条;煤层厚度变化规律十分明显,在向斜轴部较厚,背斜轴部较薄;煤层在勘探区南部受马寨隆起的影响,沉积有缺失。整体而言,勘探区煤系地层构造一般,煤层沉积规律明显,且赋存稳定,开采地质特征良好,有利于企业进行生产开拓。Based on three-dimensional seismic data volume,the structure,undulating shape,coal thickness and missing boundary of main coal seam were analyzed by means of time profile and attribute slice,which provided geological guarantee for efficient production of coal mine.In this paper,the coal seam floor in the exploration area was a NE-trending syncline fold as a whole,and there were many secondary anticlinal folds in its two wings.The dip angle of the coal seam changed greatly in the south wing of the main syncline,and the dip angle of the north wing was relatively gentle.It was found that there were 2 faults with throw less than 5 m,4 faults with throw greater than 5 m and less than 10 m,and 3 faults with throw greater than 10 m.The variation law of coal seam thickness was very obvious,which was thicker in synclinal axis and thinner in anticline axis.The coal seam in the southern part of the exploration area was affected by the Mazhai uplift,of which the deposition was missing.On the whole,the coal measures strata structure in the exploration area was general,the coal seam deposition law was obvious,the occurrence was stable,and the mining geological characteristics were good,which was conducive to the production and development of enterprises.

关 键 词：三维地震 时间剖面 属性切片 构造 

分 类 号：TD163[矿业工程—矿山地质测量]