三维地震探测技术在戈壁厚砾石区煤田构造探测中的应用  

作　　者：王玉娇 

机构地区：[1]中煤科工集团西安研究院有限公司

出　　处：《科技视界》2020年第19期149-152,共4页Science & Technology Vision

摘　　要：三维地震探测技术是煤田构造探测的重要技术手段,本文在介绍新疆三塘湖煤田戈壁厚砾石分布区地质概况的基础上,通过分析该去表浅层及深层地震地质条件,针对该区三维地震野外采集中的主要难点提出了有针对性的技术措施,通过选取合理的试验参数,取得了良好的野外单炮记录。资料处理中,针对自身特点及地质任务选取了合理的振幅补偿、反褶积、速度分析及偏移方法,取得了良好的成果剖面,采用全三维的解释手段,通过"面体时"综合解释技术,取得了良好的解释成果,经过钻探验证,勘探成果对煤层露头及煤层底板起伏验证效果良好,项目开展过程中获取的相关技术方法具有一定的推广价值。Three-dimensional seismic detection technology is an important technical means for coalfield structure detection.This paper,based on the introduction of the geological overview of the Gobi thick gravel distribution area in the Santanghu coal field in Xinjiang province,by analyzing the seismic and geological conditions of the shallow and deep layers,proposed targeted technical measures for the main difficulty in field collection,and by selecting reasonable test parameters,obtained the good field single shot record.In the data processing,reasonable amplitude compensation,deconvolution,velocity analysis and migration methods were selected according to their own characteristics and geological tasks,and good results were obtained.The full three-dimensional interpretation method and the"face-time"comprehensive interpretation technology were adopted,good interpretation results have been achieved.After drilling verification,the exploration results have a good verification effect on coal seam outcrops and coal seam floor fluctuations.The relevant technical methods obtained during the project development have certain promotion value.

关 键 词：三维地震 厚砾石区 构造探测 露头控制 

分 类 号：P631.4[天文地球—地质矿产勘探]